| Weather / Illinois Weather Temperature |
Weather Forecast for O'Fallon (Illinois)
Forecast Overview
Mon Dec 23 
43°F 27°F 6°C -3°C Sunny skies.
detailsTue Dec 24 
45°F 32°F 7°C 0°C Chance of rain in the afternoon.
detailsWed Dec 25 
43°F 41°F 6°C 5°C Chance of rain all night and day.
detailsThu Dec 26 
48°F 43°F 9°C 6°C Chance of light rain before sunrise.
detailsFri Dec 27 
59°F 45°F 15°C 7°C Chance of rain before sunrise and late at night.
detailsSat Dec 28 63°F 55°F 17°C 13°C Chance of rain at various times.
detailsSun Dec 29 
61°F 45°F 16°C 7°C Chance of rain in the morning.
detailsMon Dec 30 
57°F 45°F 14°C 7°C Partly cloudy skies.
detailsTue Dec 31 52°F 41°F 11°C 5°C Considerable cloudiness.
detailsWed Jan 1 48°F 39°F 9°C 4°C Chance of rain most of the day.
detailsThu Jan 2 
45°F 36°F 7°C 2°C Chance of light rain before sunrise. Chance of light snow after 6 pm.
detailsFri Jan 3 
36°F 32°F 2°C -0°C Overcast skies.
detailsSat Jan 4 
36°F 28°F 2°C -2°C Times of sun and clouds.
detailsSun Jan 5 45°F 28°F 7°C -2°C Mostly cloudy skies.
details
Detailed Forecast
| Monday, December 23 | O'Fallon sunrise: 07:14 sunset: 16:42 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 |  | Clear. | 26°F (-3°C) | 6 mph (9 km/h) | 79% | 0.274% |
| 03:00 06:00 | | Clear. | 26°F (-3°C) | 6 mph (10 km/h) | 81% | 0.275% |
| 06:00 09:00 | | Sunny. | 31°F (-0°C) | 10 mph (17 km/h) | 68% | 0.276% |
| 09:00 12:00 | | Sunny. | 40°F (4°C) | 14 mph (22 km/h) | 50% | 0.276% |
| 12:00 15:00 | | Sunny. | 42°F (6°C) | 12 mph (19 km/h) | 52% | 0.276% |
| 15:00 18:00 | | Clear. | 35°F (2°C) | 12 mph (19 km/h) | 66% | 0.273% |
| 18:00 21:00 | | Clear. | 34°F (1°C) | 13 mph (21 km/h) | 70% | 0.272% |
| 21:00 00:00 | | Clear. | 33°F (1°C) | 11 mph (18 km/h) | 74% | 0.272% |
| Tuesday, December 24 | O'Fallon sunrise: 07:15 sunset: 16:43 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Clear. | 33°F (1°C) | 11 mph (18 km/h) | 76% | 0.272% |
| 03:00 06:00 | | Overcast. | 33°F (1°C) | 11 mph (18 km/h) | 79% | 0.271% |
| 06:00 09:00 | | Overcast. | 39°F (4°C) | 13 mph (21 km/h) | 68% | 0.271% |
| 09:00 12:00 | | Overcast. | 45°F (7°C) | 12 mph (20 km/h) | 62% | 0.27% |
| 12:00 15:00 | | Overcast. | 44°F (7°C) | 10 mph (17 km/h) | 68% | 0.268% |
| 15:00 18:00 | | Chance of light rain. Precipitation: 0 in (0.0625 mm). | 43°F (6°C) | 9 mph (15 km/h) | 74% | 0.269% |
| 18:00 21:00 | | Overcast. Precipitation: 0.01 in (0.3125 mm). | 43°F (6°C) | 7 mph (12 km/h) | 78% | 0.272% |
| 21:00 00:00 | | Overcast. Precipitation: 0.07 in (1.6875 mm). | 43°F (6°C) | 4 mph (7 km/h) | 83% | 0.279% |
| Wednesday, December 25 | O'Fallon sunrise: 07:15 sunset: 16:44 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Chance of rain. Precipitation: 0.25 in (6.25 mm). | 42°F (5°C) | 6 mph (10 km/h) | 97% | 0.324% |
| 03:00 06:00 | | Chance of rain. Precipitation: 0.16 in (4.1875 mm). | 42°F (6°C) | 7 mph (11 km/h) | 97% | 0.323% |
| 06:00 09:00 | | Chance of rain. Precipitation: 0.09 in (2.1875 mm). | 42°F (5°C) | 8 mph (13 km/h) | 95% | 0.322% |
| 09:00 12:00 | | Chance of rain. Precipitation: 0.07 in (1.75 mm). | 42°F (6°C) | 6 mph (10 km/h) | 94% | 0.322% |
| 12:00 15:00 | | Chance of rain. Precipitation: 0.08 in (1.9375 mm). | 42°F (6°C) | 5 mph (8 km/h) | 97% | 0.323% |
| 15:00 18:00 | | Chance of rain. Precipitation: 0.05 in (1.3125 mm). | 42°F (6°C) | 3 mph (6 km/h) | 98% | 0.321% |
| 18:00 21:00 | | Chance of light rain. Precipitation: 0.02 in (0.625 mm). | 42°F (6°C) | 3 mph (5 km/h) | 99% | 0.318% |
| 21:00 00:00 | | Chance of light rain. Precipitation: 0.01 in (0.3125 mm). | 43°F (6°C) | 3 mph (5 km/h) | 99% | 0.313% |
| Thursday, December 26 | O'Fallon sunrise: 07:15 sunset: 16:44 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Chance of light rain. Precipitation: 0 in (0.0625 mm). | 43°F (6°C) | 3 mph (5 km/h) | 98% | 0.311% |
| 03:00 06:00 | | Overcast. Precipitation: 0.01 in (0.1875 mm). | 43°F (6°C) | 5 mph (8 km/h) | 99% | 0.309% |
| 06:00 09:00 | | Overcast. | 44°F (6°C) | 5 mph (7 km/h) | 96% | 0.307% |
| 09:00 12:00 | | Overcast. | 47°F (8°C) | 6 mph (10 km/h) | 90% | 0.305% |
| 12:00 15:00 | | Overcast. | 47°F (9°C) | 6 mph (9 km/h) | 89% | 0.302% |
| 15:00 18:00 | | Overcast. | 45°F (7°C) | 5 mph (8 km/h) | 93% | 0.302% |
| 18:00 21:00 | | Overcast. | 45°F (7°C) | 5 mph (7 km/h) | 95% | 0.301% |
| 21:00 00:00 | | Overcast. | 45°F (7°C) | 3 mph (6 km/h) | 96% | 0.3% |
| Friday, December 27 | O'Fallon sunrise: 07:16 sunset: 16:45 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Overcast. | 45°F (7°C) | 5 mph (8 km/h) | 96% | 0.297% |
| 03:00 06:00 | | Chance of light rain. Precipitation: 0 in (0.0625 mm). | 46°F (8°C) | 5 mph (8 km/h) | 98% | 0.299% |
| 06:00 09:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 47°F (9°C) | 7 mph (11 km/h) | 98% | 0.296% |
| 09:00 12:00 | | Overcast. | 51°F (10°C) | 8 mph (13 km/h) | 96% | 0.297% |
| 12:00 15:00 | | Overcast. | 54°F (12°C) | 12 mph (20 km/h) | 93% | 0.296% |
| 15:00 18:00 | | Overcast. | 54°F (12°C) | 14 mph (22 km/h) | 94% | 0.297% |
| 18:00 21:00 | | Overcast. | 57°F (14°C) | 18 mph (29 km/h) | 96% | 0.295% |
| 21:00 00:00 | | Chance of scattered rain showers. Precipitation: 0.12 in (2.9375 mm). | 58°F (14°C) | 19 mph (30 km/h) | 93% | 0.316% |
| Saturday, December 28 | O'Fallon sunrise: 07:16 sunset: 16:46 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Chance of rain. Precipitation: 0.21 in (5.375 mm). | 55°F (13°C) | 14 mph (22 km/h) | 91% | 0.327% |
| 03:00 06:00 | | Clear. Precipitation: 0 in (0.125 mm). | 58°F (14°C) | 13 mph (22 km/h) | 95% | 0.315% |
| 06:00 09:00 | | Chance of light rain. Precipitation: 0.01 in (0.25 mm). | 59°F (15°C) | 11 mph (17 km/h) | 94% | 0.314% |
| 09:00 12:00 | | Chance of light rain. Precipitation: 0.02 in (0.5625 mm). | 59°F (15°C) | 14 mph (23 km/h) | 94% | 0.315% |
| 12:00 15:00 | | Chance of light rain. Precipitation: 0.03 in (0.75 mm). | 60°F (15°C) | 15 mph (24 km/h) | 93% | 0.318% |
| 15:00 18:00 | | Overcast. Precipitation: 0.01 in (0.3125 mm). | 59°F (15°C) | 15 mph (25 km/h) | 94% | 0.313% |
| 18:00 21:00 | | Overcast. Precipitation: 0.07 in (1.75 mm). | 59°F (15°C) | 17 mph (28 km/h) | 95% | 0.323% |
| 21:00 00:00 | | Chance of scattered rain showers. Precipitation: 0.09 in (2.1875 mm). | 58°F (15°C) | 17 mph (28 km/h) | 95% | 0.328% |
| Sunday, December 29 | O'Fallon sunrise: 07:16 sunset: 16:46 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Chance of rain. Precipitation: 0.25 in (6.4375 mm). | 58°F (15°C) | 21 mph (33 km/h) | 93% | 0.356% |
| 03:00 06:00 | | Chance of rain. Precipitation: 0.24 in (6.1875 mm). | 57°F (14°C) | 17 mph (28 km/h) | 95% | 0.354% |
| 06:00 09:00 | | Chance of light rain. Precipitation: 0.02 in (0.5625 mm). | 59°F (15°C) | 18 mph (30 km/h) | 94% | 0.342% |
| 09:00 12:00 | | Sunny. Precipitation: 0.16 in (4.1875 mm). | 60°F (15°C) | 16 mph (25 km/h) | 70% | 0.354% |
| 12:00 15:00 | | Sunny. | 57°F (14°C) | 13 mph (22 km/h) | 63% | 0.338% |
| 15:00 18:00 | | Clear. | 50°F (10°C) | 12 mph (19 km/h) | 72% | 0.333% |
| 18:00 21:00 | | Clear. | 46°F (8°C) | 6 mph (9 km/h) | 83% | 0.33% |
| 21:00 00:00 | | Overcast. | 45°F (7°C) | 5 mph (8 km/h) | 85% | 0.325% |
| Monday, December 30 | O'Fallon sunrise: 07:17 sunset: 16:47 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Overcast. | 45°F (7°C) | 5 mph (9 km/h) | 84% | 0.325% |
| 03:00 06:00 | | Overcast. | 44°F (7°C) | 6 mph (10 km/h) | 82% | 0.326% |
| 06:00 09:00 | | Overcast. | 48°F (9°C) | 10 mph (17 km/h) | 76% | 0.322% |
| 09:00 12:00 | | Times of sun and clouds. | 53°F (12°C) | 11 mph (18 km/h) | 61% | 0.319% |
| 12:00 15:00 | | Overcast. | 56°F (14°C) | 8 mph (12 km/h) | 61% | 0.317% |
| 15:00 18:00 | | Clear. Precipitation: 0.01 in (0.3125 mm). | 49°F (10°C) | 11 mph (18 km/h) | 71% | 0.317% |
| 18:00 21:00 | | Mostly clear. | 47°F (8°C) | 9 mph (15 km/h) | 76% | 0.316% |
| 21:00 00:00 | | Clear. | 48°F (9°C) | 9 mph (15 km/h) | 81% | 0.315% |
| Tuesday, December 31 | O'Fallon sunrise: 07:17 sunset: 16:48 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Considerable cloudiness. | 43°F (6°C) | 6 mph (10 km/h) | 90% | 0.312% |
| 03:00 06:00 | | Clear. | 42°F (5°C) | 7 mph (11 km/h) | 89% | 0.316% |
| 06:00 09:00 | | Overcast. | 44°F (7°C) | 7 mph (12 km/h) | 82% | 0.313% |
| 09:00 12:00 | | Overcast. | 50°F (10°C) | 6 mph (10 km/h) | 64% | 0.309% |
| 12:00 15:00 | | Overcast. | 51°F (11°C) | 3 mph (5 km/h) | 59% | 0.309% |
| 15:00 18:00 | | Overcast. | 46°F (8°C) | 3 mph (4 km/h) | 73% | 0.309% |
| 18:00 21:00 | | Overcast. | 45°F (7°C) | 6 mph (9 km/h) | 77% | 0.309% |
| 21:00 00:00 | | Clear. | 42°F (6°C) | 6 mph (10 km/h) | 86% | 0.308% |
| Wednesday, January 1 | O'Fallon sunrise: 07:17 sunset: 16:48 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Mostly cloudy. | 41°F (5°C) | 7 mph (11 km/h) | 87% | 0.308% |
| 03:00 06:00 | | Overcast. | 40°F (4°C) | 7 mph (12 km/h) | 91% | 0.308% |
| 06:00 09:00 | | Overcast. | 43°F (6°C) | 12 mph (19 km/h) | 83% | 0.307% |
| 09:00 12:00 | | Chance of light rain. Precipitation: 0.01 in (0.1875 mm). | 47°F (9°C) | 12 mph (20 km/h) | 73% | 0.307% |
| 12:00 15:00 | | Chance of rain. Precipitation: 0.11 in (2.75 mm). | 44°F (7°C) | 9 mph (14 km/h) | 92% | 0.321% |
| 15:00 18:00 | | Chance of rain. Precipitation: 0.17 in (4.375 mm). | 44°F (7°C) | 8 mph (12 km/h) | 95% | 0.344% |
| 18:00 21:00 | | Chance of rain. Precipitation: 0.06 in (1.4375 mm). | 44°F (7°C) | 6 mph (9 km/h) | 93% | 0.337% |
| 21:00 00:00 | | Chance of light rain. Precipitation: 0.03 in (0.8125 mm). | 44°F (7°C) | 11 mph (18 km/h) | 93% | 0.333% |
| Thursday, January 2 | O'Fallon sunrise: 07:17 sunset: 16:49 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Chance of light rain. Precipitation: 0.03 in (0.75 mm). | 44°F (7°C) | 13 mph (21 km/h) | 90% | 0.33% |
| 03:00 06:00 | | Chance of light rain. Precipitation: 0.01 in (0.375 mm). | 42°F (5°C) | 14 mph (23 km/h) | 92% | 0.33% |
| 06:00 09:00 | | Overcast. Precipitation: 0.01 in (0.375 mm). | 41°F (5°C) | 15 mph (25 km/h) | 83% | 0.325% |
| 09:00 12:00 | | Overcast. | 39°F (4°C) | 15 mph (23 km/h) | 88% | 0.322% |
| 12:00 15:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 39°F (4°C) | 14 mph (23 km/h) | 87% | 0.32% |
| 15:00 18:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 37°F (3°C) | 14 mph (22 km/h) | 96% | 0.319% |
| 18:00 21:00 | | Chance of light snow. Precipitation: 0.01 in (0.1875 mm). | 36°F (2°C) | 14 mph (23 km/h) | 93% | 0.319% |
| 21:00 00:00 | | Overcast. Precipitation: 0 in (0.125 mm). | 36°F (2°C) | 13 mph (20 km/h) | 86% | 0.318% |
| Friday, January 3 | O'Fallon sunrise: 07:17 sunset: 16:50 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Overcast. Precipitation: 0 in (0.0625 mm). | 35°F (2°C) | 13 mph (21 km/h) | 85% | 0.316% |
| 03:00 06:00 | | Mostly cloudy. Precipitation: 0 in (0.0625 mm). | 34°F (1°C) | 13 mph (21 km/h) | 80% | 0.315% |
| 06:00 09:00 | | Overcast. | 33°F (1°C) | 12 mph (20 km/h) | 75% | 0.314% |
| 09:00 12:00 | | Overcast. | 34°F (1°C) | 13 mph (21 km/h) | 68% | 0.314% |
| 12:00 15:00 | | Overcast. | 34°F (1°C) | 11 mph (18 km/h) | 70% | 0.311% |
| 15:00 18:00 | | Overcast. | 33°F (1°C) | 10 mph (16 km/h) | 71% | 0.31% |
| 18:00 21:00 | | Overcast. | 32°F (0°C) | 8 mph (14 km/h) | 69% | 0.31% |
| 21:00 00:00 | | Overcast. | 31°F (-0°C) | 9 mph (14 km/h) | 71% | 0.309% |
| Saturday, January 4 | O'Fallon sunrise: 07:17 sunset: 16:51 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Overcast. | 29°F (-2°C) | 6 mph (9 km/h) | 79% | 0.311% |
| 03:00 06:00 | | Overcast. | 28°F (-2°C) | 6 mph (10 km/h) | 78% | 0.31% |
| 06:00 09:00 | | Sunny. | 30°F (-1°C) | 8 mph (13 km/h) | 67% | 0.309% |
| 09:00 12:00 | | A few passing clouds. | 35°F (1°C) | 7 mph (11 km/h) | 55% | 0.309% |
| 12:00 15:00 | | Sunny. | 36°F (2°C) | 6 mph (10 km/h) | 50% | 0.305% |
| 15:00 18:00 | | Clear. | 30°F (-1°C) | 3 mph (6 km/h) | 64% | 0.306% |
| 18:00 21:00 | | Clear. | 29°F (-2°C) | 3 mph (5 km/h) | 67% | 0.306% |
| 21:00 00:00 | | Clear. | 28°F (-2°C) | 6 mph (10 km/h) | 72% | 0.304% |
| Sunday, January 5 | O'Fallon sunrise: 07:17 sunset: 16:51 |
| Time | Skies | Conditions | Temp | Wind | Humidity | Soil Moisture |
| 00:00 03:00 | | Clear. | 28°F (-2°C) | 6 mph (10 km/h) | 70% | 0.306% |
| 03:00 06:00 | | Overcast. | 28°F (-2°C) | 7 mph (11 km/h) | 71% | 0.31% |
| 06:00 09:00 | | Overcast. | 32°F (0°C) | 9 mph (15 km/h) | 60% | 0.308% |
| 09:00 12:00 | | Partly cloudy. | 43°F (6°C) | 12 mph (20 km/h) | 48% | 0.307% |
| 12:00 15:00 | | Partly cloudy. | 45°F (7°C) | 10 mph (16 km/h) | 54% | 0.306% |
| 15:00 18:00 | | Overcast. | 37°F (3°C) | 5 mph (8 km/h) | 69% | 0.305% |
| 18:00 21:00 | | Overcast. | 35°F (2°C) | 6 mph (9 km/h) | 76% | 0.302% |
| 21:00 00:00 | | Mostly cloudy. | 33°F (0°C) | 5 mph (8 km/h) | 80% | 0.304% |
O'Fallon (latitude 38°35'N, longitude 089°55'W)
O'Fallon - other nearby places: Shiloh (2 miles / 3.7 km away), Fairview Heights (5 miles / 7.5 km away), Swansea (5 miles / 8 km away), Lebanon (6 miles / 8.9 km away), Belleville (6 miles / 9.1 km away), Caseyville (7 miles / 12 km away), Collinsville (8 miles / 13 km away), Summerfield (9 miles / 15 km away), Maryville (10 miles / 15 km away), Washington Park (10 miles / 16 km away), Mascoutah (10 miles / 16 km away), Fairmont City (10 miles / 16 km away), Freeburg (10 miles / 17 km away), Troy (11 miles / 17 km away), Alorton (11 miles / 17 km away).
View weather forecasts for other places in Illinois
Forecasts for Other Places:
O'Fallon
27°F ... 45°F (-3°C ... 7°C)
Sunny skies.
O'Hara Township
16°F ... 25°F (-9°C ... -4°C)
A few passing clouds.
O'Kean
28°F ... 45°F (-2°C ... 7°C)
Sunny skies.
O'Neill
34°F ... 48°F (1°C ... 9°C)
Mostly cloudy skies.
Oacoma
34°F ... 43°F (1°C ... 6°C)
Overcast skies.
Oak
28°F ... 55°F (-2°C ... 13°C)
Partly cloudy skies.
Oak Bluffs
18°F ... 23°F (-8°C ... -5°C)
Sunny skies.
Oak Brook
19°F ... 32°F (-7°C ... -0°C)
Mostly cloudy skies.
Oak City
28°F ... 37°F (-2°C ... 3°C)
Sunny skies.
Oak City
36°F ... 52°F (2°C ... 11°C)
Considerable cloudiness.