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Weather in De Kalb, Illinois

Current Conditions (Sunday, March 30, 2025 at 23:55 America/Chicago time)

Temperature: 41°F (5°C)
Skies: overcast
Humidity: 79%
Wind: From the W at 17 mph (27 km/h) gusting to 26 mph (42 km/h)
Pressure: 1004
Dew Point: 34°F (1°C)

Forecast Overview

Mon Mar 31
46°F 32°F
8°C -0°C
Considerable cloudiness.

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Tue Apr 1
45°F 30°F
7°C -1°C
Chance of rain late at night.

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Wed Apr 2
70°F 41°F
21°C 5°C
Chance of heavy rain until 4 pm.

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Thu Apr 3
54°F 41°F
12°C 5°C
Mostly cloudy skies.

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Fri Apr 4
55°F 36°F
13°C 2°C
Overcast skies.

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Sat Apr 5
52°F 36°F
11°C 2°C
Overcast skies.

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Sun Apr 6
46°F 27°F
8°C -3°C
Considerable cloudiness.

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Mon Apr 7
37°F 25°F
3°C -4°C
Mostly cloudy skies.

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Tue Apr 8
39°F 23°F
4°C -5°C
Considerable cloudiness.

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Wed Apr 9
52°F 25°F
11°C -4°C
A few passing clouds.

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Thu Apr 10
55°F 37°F
13°C 3°C
Considerable cloudiness.

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Fri Apr 11
48°F 32°F
9°C -0°C
Times of sun and clouds.

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Sat Apr 12
57°F 32°F
14°C 0°C
Partly cloudy skies.

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Sun Apr 13
55°F 39°F
13°C 4°C
A few passing clouds.

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Detailed Forecast

Monday, March 31

sunrise: 06:41 sunset: 19:18

Low around 32°F (-0°C), high around 46°F (8°C).
Estimated precipitation: 0.01 in (0.1875 mm).
Considerable cloudiness.
Wind: 15 mph (24 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Considerable cloudiness. Precipitation: 0.01 in (0.1875 mm).	33°F (1°C)	15 mph (24 km/h)	83%	0.329%
04:00 07:00		Overcast.	32°F (0°C)	14 mph (22 km/h)	80%	0.328%
07:00 10:00		Mostly cloudy.	35°F (2°C)	13 mph (21 km/h)	70%	0.326%
10:00 13:00		More clouds than sun.	43°F (6°C)	12 mph (20 km/h)	59%	0.323%
13:00 16:00		Sunny.	46°F (8°C)	12 mph (19 km/h)	47%	0.32%
16:00 19:00		Sunny.	41°F (5°C)	10 mph (16 km/h)	60%	0.32%
19:00 22:00		Clear.	35°F (2°C)	11 mph (17 km/h)	75%	0.321%
22:00 01:00		Overcast.	32°F (-0°C)	7 mph (11 km/h)	80%	0.321%

Tuesday, April 1

sunrise: 06:39 sunset: 19:19

Low around 30°F (-1°C), high around 44°F (7°C).
Chance of rain late at night (after 10 pm). Estimated precipitation: 0.05 in (1.3125 mm).
Mostly cloudy skies.
Wind: 20 mph (31 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		A few passing clouds.	30°F (-1°C)	5 mph (8 km/h)	86%	0.321%
04:00 07:00		Sunny.	31°F (-0°C)	6 mph (10 km/h)	81%	0.321%
07:00 10:00		Overcast.	38°F (3°C)	13 mph (20 km/h)	61%	0.319%
10:00 13:00		Overcast.	41°F (5°C)	13 mph (21 km/h)	57%	0.317%
13:00 16:00		Overcast. Precipitation: 0 in (0.0625 mm).	42°F (6°C)	12 mph (19 km/h)	56%	0.316%
16:00 19:00		Overcast.	39°F (4°C)	15 mph (24 km/h)	61%	0.317%
19:00 22:00		Overcast. Precipitation: 0 in (0.0625 mm).	42°F (5°C)	16 mph (26 km/h)	68%	0.317%
22:00 01:00		Chance of rain. Precipitation: 0.05 in (1.1875 mm).	43°F (6°C)	20 mph (31 km/h)	84%	0.324%

Wednesday, April 2

sunrise: 06:38 sunset: 19:20

Low around 41°F (5°C), high around 69°F (21°C).
Chance of heavy rain until late afternoon (4 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 1.04 in (26.3125 mm).
Considerable cloudiness.
Wind: 25 mph (40 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Chance of rain. Precipitation: 0.36 in (9.25 mm).	43°F (6°C)	22 mph (36 km/h)	96%	0.366%
04:00 07:00		Chance of heavy rain. Precipitation: 0.48 in (12.25 mm).	41°F (5°C)	20 mph (32 km/h)	94%	0.372%
07:00 10:00		Chance of rain. Precipitation: 0.04 in (1 mm).	47°F (8°C)	16 mph (25 km/h)	94%	0.36%
10:00 13:00		Chance of rain. Precipitation: 0.05 in (1.3125 mm).	55°F (13°C)	15 mph (24 km/h)	98%	0.361%
13:00 16:00		Chance of scattered rain showers. Precipitation: 0.05 in (1.25 mm).	69°F (21°C)	25 mph (40 km/h)	75%	0.356%
16:00 19:00		Mostly sunny. Precipitation: 0.05 in (1.25 mm).	61°F (16°C)	16 mph (25 km/h)	58%	0.353%
19:00 22:00		Considerable cloudiness.	52°F (11°C)	9 mph (15 km/h)	78%	0.348%
22:00 01:00		Clear.	52°F (11°C)	12 mph (19 km/h)	70%	0.346%

Thursday, April 3

sunrise: 06:36 sunset: 19:21

Low around 40°F (5°C), high around 54°F (12°C).
Mostly cloudy skies.
Wind: 16 mph (26 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Times of clear skies and clouds.	48°F (9°C)	12 mph (19 km/h)	82%	0.344%
04:00 07:00		Sunny.	44°F (6°C)	13 mph (21 km/h)	74%	0.342%
07:00 10:00		Overcast.	47°F (8°C)	15 mph (24 km/h)	59%	0.339%
10:00 13:00		Overcast.	51°F (10°C)	16 mph (26 km/h)	55%	0.335%
13:00 16:00		Overcast.	54°F (12°C)	10 mph (16 km/h)	50%	0.332%
16:00 19:00		Overcast.	50°F (10°C)	6 mph (10 km/h)	66%	0.332%
19:00 22:00		Clear.	44°F (6°C)	6 mph (10 km/h)	77%	0.333%
22:00 01:00		Overcast.	40°F (5°C)	9 mph (15 km/h)	81%	0.333%

Friday, April 4

sunrise: 06:34 sunset: 19:22

Low around 36°F (2°C), high around 55°F (13°C).
Overcast skies.
Wind: 9 mph (15 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Overcast.	38°F (3°C)	8 mph (12 km/h)	86%	0.333%
04:00 07:00		Mostly cloudy.	36°F (2°C)	6 mph (10 km/h)	86%	0.332%
07:00 10:00		Overcast.	44°F (7°C)	7 mph (11 km/h)	67%	0.331%
10:00 13:00		Overcast.	51°F (11°C)	8 mph (13 km/h)	57%	0.327%
13:00 16:00		Overcast.	55°F (13°C)	7 mph (11 km/h)	52%	0.325%
16:00 19:00		Overcast.	49°F (9°C)	9 mph (15 km/h)	69%	0.326%
19:00 22:00		Overcast.	42°F (6°C)	7 mph (12 km/h)	70%	0.326%
22:00 01:00		Overcast.	41°F (5°C)	9 mph (15 km/h)	74%	0.326%

Saturday, April 5

sunrise: 06:32 sunset: 19:23

Low around 36°F (2°C), high around 52°F (11°C).
Overcast skies.
Wind: 12 mph (20 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Overcast.	38°F (3°C)	9 mph (14 km/h)	81%	0.326%
04:00 07:00		Overcast.	37°F (3°C)	9 mph (15 km/h)	85%	0.326%
07:00 10:00		Overcast.	42°F (6°C)	12 mph (20 km/h)	68%	0.325%
10:00 13:00		Overcast.	49°F (10°C)	10 mph (16 km/h)	52%	0.322%
13:00 16:00		Overcast.	52°F (11°C)	10 mph (16 km/h)	48%	0.32%
16:00 19:00		Overcast.	47°F (8°C)	7 mph (12 km/h)	66%	0.32%
19:00 22:00		Overcast.	40°F (4°C)	6 mph (10 km/h)	77%	0.322%
22:00 01:00		Overcast.	36°F (2°C)	5 mph (7 km/h)	84%	0.322%

Sunday, April 6

sunrise: 06:31 sunset: 19:24

Low around 27°F (-3°C), high around 47°F (8°C).
Considerable cloudiness.
Wind: 22 mph (36 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Mostly cloudy.	35°F (2°C)	4 mph (6 km/h)	86%	0.323%
04:00 07:00		Sunny.	34°F (1°C)	8 mph (13 km/h)	85%	0.323%
07:00 10:00		Sunny.	44°F (7°C)	18 mph (29 km/h)	51%	0.321%
10:00 13:00		Overcast.	44°F (6°C)	19 mph (31 km/h)	57%	0.318%
13:00 16:00		Considerable cloudiness.	41°F (5°C)	22 mph (36 km/h)	33%	0.314%
16:00 19:00		Sunny.	34°F (1°C)	18 mph (29 km/h)	39%	0.314%
19:00 22:00		Clear.	29°F (-2°C)	17 mph (28 km/h)	52%	0.314%
22:00 01:00		Overcast.	27°F (-3°C)	19 mph (30 km/h)	63%	0.313%

Monday, April 7

sunrise: 06:29 sunset: 19:25

Low around 24°F (-4°C), high around 37°F (3°C).
Estimated precipitation: 0.01 in (0.1875 mm).
Mostly cloudy skies.
Wind: 19 mph (31 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Overcast.	26°F (-4°C)	19 mph (31 km/h)	67%	0.314%
04:00 07:00		Overcast.	25°F (-4°C)	19 mph (30 km/h)	67%	0.314%
07:00 10:00		Overcast.	31°F (-1°C)	19 mph (31 km/h)	47%	0.315%
10:00 13:00		Overcast.	37°F (3°C)	18 mph (28 km/h)	34%	0.312%
13:00 16:00		Overcast.	37°F (3°C)	17 mph (27 km/h)	35%	0.309%
16:00 19:00		Overcast. Precipitation: 0.01 in (0.1875 mm).	32°F (-0°C)	13 mph (20 km/h)	49%	0.308%
19:00 22:00		Overcast.	26°F (-3°C)	7 mph (11 km/h)	60%	0.308%
22:00 01:00		Clear.	24°F (-4°C)	6 mph (9 km/h)	59%	0.308%

Tuesday, April 8

sunrise: 06:27 sunset: 19:26

Low around 23°F (-5°C), high around 39°F (4°C).
Considerable cloudiness.
Wind: 16 mph (25 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Clear.	23°F (-5°C)	5 mph (9 km/h)	62%	0.31%
04:00 07:00		Overcast.	23°F (-5°C)	7 mph (11 km/h)	58%	0.311%
07:00 10:00		Overcast.	30°F (-1°C)	15 mph (24 km/h)	41%	0.312%
10:00 13:00		Overcast.	36°F (2°C)	14 mph (22 km/h)	31%	0.311%
13:00 16:00		Overcast.	39°F (4°C)	16 mph (25 km/h)	30%	0.307%
16:00 19:00		Sunny.	33°F (1°C)	11 mph (17 km/h)	43%	0.305%
19:00 22:00		Mostly cloudy.	26°F (-3°C)	5 mph (9 km/h)	53%	0.305%
22:00 01:00		Clear.	26°F (-4°C)	3 mph (5 km/h)	53%	0.305%

Wednesday, April 9

sunrise: 06:26 sunset: 19:27

Low around 25°F (-4°C), high around 52°F (11°C).
A few passing clouds.
Wind: 11 mph (17 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Clear.	25°F (-4°C)	4 mph (6 km/h)	54%	0.306%
04:00 07:00		Sunny.	27°F (-3°C)	4 mph (7 km/h)	51%	0.307%
07:00 10:00		Sunny.	39°F (4°C)	8 mph (13 km/h)	36%	0.307%
10:00 13:00		Sunny.	47°F (9°C)	10 mph (15 km/h)	38%	0.304%
13:00 16:00		Sunny.	52°F (11°C)	11 mph (17 km/h)	42%	0.3%
16:00 19:00		Sunny.	48°F (9°C)	6 mph (10 km/h)	60%	0.301%
19:00 22:00		Clear.	43°F (6°C)	7 mph (11 km/h)	73%	0.303%
22:00 01:00		Overcast.	42°F (6°C)	8 mph (13 km/h)	80%	0.304%

Thursday, April 10

sunrise: 06:24 sunset: 19:29

Low around 37°F (3°C), high around 56°F (13°C).
Considerable cloudiness.
Wind: 14 mph (23 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Clear.	42°F (6°C)	9 mph (14 km/h)	91%	0.305%
04:00 07:00		Overcast.	44°F (6°C)	10 mph (16 km/h)	94%	0.306%
07:00 10:00		Overcast.	49°F (9°C)	13 mph (22 km/h)	69%	0.306%
10:00 13:00		Sunny.	54°F (12°C)	14 mph (22 km/h)	52%	0.302%
13:00 16:00		Overcast.	55°F (13°C)	14 mph (23 km/h)	46%	0.299%
16:00 19:00		Overcast.	49°F (10°C)	11 mph (18 km/h)	58%	0.3%
19:00 22:00		Overcast.	42°F (6°C)	13 mph (22 km/h)	65%	0.301%
22:00 01:00		Clear.	37°F (3°C)	5 mph (9 km/h)	78%	0.303%

Friday, April 11

sunrise: 06:22 sunset: 19:30

Low around 31°F (-0°C), high around 48°F (9°C).
Times of sun and clouds.
Wind: 13 mph (20 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Clear.	34°F (1°C)	8 mph (13 km/h)	80%	0.304%
04:00 07:00		Sunny.	32°F (-0°C)	7 mph (12 km/h)	83%	0.305%
07:00 10:00		Mostly sunny, with a few passing clouds.	39°F (4°C)	13 mph (20 km/h)	56%	0.304%
10:00 13:00		Overcast.	45°F (7°C)	11 mph (18 km/h)	45%	0.301%
13:00 16:00		Mostly cloudy.	48°F (9°C)	12 mph (19 km/h)	40%	0.298%
16:00 19:00		Sunny.	44°F (7°C)	8 mph (13 km/h)	52%	0.298%
19:00 22:00		Clear.	38°F (3°C)	6 mph (10 km/h)	63%	0.3%
22:00 01:00		Clear.	35°F (2°C)	5 mph (9 km/h)	67%	0.302%

Saturday, April 12

sunrise: 06:21 sunset: 19:31

Low around 32°F (0°C), high around 57°F (14°C).
Partly cloudy skies.
Wind: 20 mph (32 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Clear.	34°F (1°C)	6 mph (10 km/h)	70%	0.303%
04:00 07:00		Sunny.	33°F (0°C)	7 mph (12 km/h)	71%	0.303%
07:00 10:00		Overcast.	45°F (7°C)	14 mph (23 km/h)	50%	0.301%
10:00 13:00		Overcast.	52°F (11°C)	19 mph (30 km/h)	42%	0.298%
13:00 16:00		Mostly cloudy.	56°F (13°C)	19 mph (31 km/h)	44%	0.295%
16:00 19:00		Mostly sunny.	54°F (12°C)	19 mph (31 km/h)	48%	0.294%
19:00 22:00		Mostly clear, with a few passing clouds.	52°F (11°C)	20 mph (32 km/h)	59%	0.295%
22:00 01:00		Overcast.	52°F (11°C)	17 mph (27 km/h)	69%	0.296%

Sunday, April 13

sunrise: 06:19 sunset: 19:32

Low around 39°F (4°C), high around 55°F (13°C).
A few passing clouds.
Wind: 13 mph (22 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Clear.	44°F (7°C)	13 mph (22 km/h)	75%	0.298%
04:00 07:00		Sunny.	39°F (4°C)	11 mph (18 km/h)	86%	0.299%
07:00 10:00		More sun than clouds.	45°F (7°C)	13 mph (20 km/h)	63%	0.298%
10:00 13:00		Sunny.	51°F (11°C)	10 mph (16 km/h)	50%	0.295%
13:00 16:00		Sunny.	55°F (13°C)	10 mph (17 km/h)	47%	0.292%
16:00 19:00		Sunny.	50°F (10°C)	9 mph (15 km/h)	61%	0.292%
19:00 22:00		Clear.	46°F (8°C)	6 mph (9 km/h)	71%	0.294%
22:00 01:00		Overcast.	43°F (6°C)	7 mph (11 km/h)	80%	0.296%

Climate Chart

» De Kalb Climate Chart

Places with a similar climate: Freeport (IL), Monroe (WI), Aurora (IL), Janesville / Rock County (WI), Vinton (IA), Rockford (IL), Cedar Rapids (IA), Decorah (IA), Madison, Dane County (WI), Prairie Du Chien (WI), Clinton (IA), Dubuque (IA), Oelwein (IA), Boone (IA), Winona (MN), Burlington (WI), Monticello (IA), Davenport (IA), Watertown (WI), Fond Du Lac County (WI), Kenosha (WI), Ames (IA), Juneau, Dodge County (WI), Waukesha City/County (WI), Lone Rock (WI).

Temperature variation graph for the last seven days

Humidity Variation Graph

Wind speed

Weather Station: De Kalb, De Kalb Taylor Municipal Airport (latitude 41-55-55N, longitude 088-42-30W)

Local Time:

De Kalb is in the "America/Chicago" timezone.

The "America/Chicago" timezone uses a Standard Time (ST) / Daylight Saving Time (DST) alternation scheme, and it currently is in DST (since Sunday, 9 March 2025, 03:00 AM local time). During DST, the timezone abbreviation is CDT and the offset to Universal Time (UTC, GMT or Zulu) is -5:00 hours.

De Kalb will exit DST (returning to standard time) on Sunday, 2 November 2025, at 02:00 AM local time, when clocks will be turned backward 1 hour to Sunday, 2 November 2025, 01:00 AM local standard time. During ST, the timezone abbreviation is CST and the offset to UTC will be -6:00 hours.