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Published in Weather / Illinois Weather Temperature

Weather in De Kalb, Illinois

Current Conditions (Friday, March 14, 2025 at 07:15 America/Chicago time)

Temperature: 48°F (9°C)
Weather: Lightning observed
Skies: clear
Humidity: 80%
Wind: From the SE at 12 mph (19 km/h)
Pressure: 1005
Dew Point: 43°F (6°C)

Forecast Overview

Sat Mar 15
75°F 45°F
24°C 7°C
Mostly cloudy skies.

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Sun Mar 16
61°F 36°F
16°C 2°C
Considerable cloudiness.

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Mon Mar 17
43°F 28°F
6°C -2°C
Partly cloudy skies.

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Tue Mar 18
59°F 30°F
15°C -1°C
Overcast skies.

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Wed Mar 19
66°F 45°F
19°C 7°C
Overcast skies.

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Thu Mar 20
61°F 27°F
16°C -3°C
Chance of rain until 7 pm. Chance of snow after 7 pm.

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Fri Mar 21
30°F 23°F
-1°C -5°C
Chance of light snow before sunrise and in the afternoon.

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Sat Mar 22
28°F 19°F
-2°C -7°C
More sun than clouds.

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Sun Mar 23
36°F 19°F
2°C -7°C
Partly cloudy skies.

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Detailed Forecast

Saturday, March 15

sunrise: 07:08 sunset: 19:00

Low around 45°F (7°C), high around 74°F (24°C).
Estimated precipitation: 0.25 in (6.4375 mm).
Mostly cloudy skies.
Wind: 30 mph (48 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Considerable cloudiness. Precipitation: 0 in (0.125 mm).	49°F (10°C)	14 mph (22 km/h)	75%	0.268%
04:00 07:00		Overcast.	52°F (11°C)	14 mph (22 km/h)	88%	0.268%
07:00 10:00		Sunny.	62°F (17°C)	19 mph (30 km/h)	72%	0.268%
10:00 13:00		More clouds than sun.	72°F (22°C)	23 mph (37 km/h)	47%	0.265%
13:00 16:00		Overcast.	74°F (23°C)	22 mph (36 km/h)	50%	0.26%
16:00 19:00		Overcast.	68°F (20°C)	23 mph (38 km/h)	62%	0.259%
19:00 22:00		Overcast.	67°F (19°C)	30 mph (48 km/h)	65%	0.258%
22:00 01:00		Mostly cloudy. Precipitation: 0.25 in (6.3125 mm).	47°F (9°C)	1 mph (2 km/h)	93%	0.308%

Sunday, March 16

sunrise: 07:07 sunset: 19:01

Low around 35°F (2°C), high around 60°F (16°C).
Estimated precipitation: 0 in (0.125 mm).
Considerable cloudiness.
Wind: 31 mph (49 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Clear. Precipitation: 0 in (0.125 mm).	58°F (14°C)	23 mph (36 km/h)	38%	0.308%
04:00 07:00		Clear.	58°F (14°C)	28 mph (45 km/h)	44%	0.303%
07:00 10:00		A few passing clouds.	57°F (14°C)	31 mph (49 km/h)	59%	0.298%
10:00 13:00		Overcast.	56°F (14°C)	24 mph (39 km/h)	66%	0.293%
13:00 16:00		Overcast.	52°F (11°C)	18 mph (28 km/h)	65%	0.29%
16:00 19:00		Overcast.	48°F (9°C)	15 mph (24 km/h)	70%	0.288%
19:00 22:00		Overcast.	41°F (5°C)	13 mph (21 km/h)	69%	0.287%
22:00 01:00		Overcast.	35°F (2°C)	15 mph (24 km/h)	71%	0.286%

Monday, March 17

sunrise: 07:05 sunset: 19:02

Low around 28°F (-2°C), high around 43°F (6°C).
Partly cloudy skies.
Wind: 18 mph (29 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Overcast.	32°F (-0°C)	14 mph (23 km/h)	74%	0.285%
04:00 07:00		Clear.	29°F (-2°C)	16 mph (25 km/h)	69%	0.284%
07:00 10:00		Sunny.	32°F (-0°C)	18 mph (29 km/h)	52%	0.283%
10:00 13:00		Sunny.	39°F (4°C)	16 mph (26 km/h)	38%	0.279%
13:00 16:00		Sunny.	43°F (6°C)	15 mph (25 km/h)	33%	0.276%
16:00 19:00		Overcast.	38°F (3°C)	8 mph (14 km/h)	43%	0.274%
19:00 22:00		Clear.	34°F (1°C)	4 mph (7 km/h)	55%	0.273%
22:00 01:00		Overcast.	31°F (-0°C)	4 mph (7 km/h)	56%	0.274%

Tuesday, March 18

sunrise: 07:03 sunset: 19:03

Low around 31°F (-1°C), high around 60°F (15°C).
Overcast skies.
Wind: 24 mph (38 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Overcast.	32°F (0°C)	7 mph (11 km/h)	52%	0.274%
04:00 07:00		Overcast.	31°F (-1°C)	11 mph (17 km/h)	56%	0.275%
07:00 10:00		Overcast.	41°F (5°C)	19 mph (30 km/h)	41%	0.274%
10:00 13:00		Overcast.	54°F (12°C)	24 mph (38 km/h)	37%	0.27%
13:00 16:00		Sunny.	59°F (15°C)	23 mph (37 km/h)	42%	0.266%
16:00 19:00		Overcast.	57°F (14°C)	20 mph (32 km/h)	51%	0.264%
19:00 22:00		Overcast.	55°F (13°C)	17 mph (28 km/h)	60%	0.263%
22:00 01:00		Overcast.	51°F (11°C)	14 mph (23 km/h)	69%	0.263%

Wednesday, March 19

sunrise: 07:02 sunset: 19:04

Low around 45°F (7°C), high around 65°F (19°C).
Overcast skies.
Wind: 18 mph (29 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Overcast.	49°F (9°C)	8 mph (14 km/h)	79%	0.264%
04:00 07:00		Overcast.	46°F (8°C)	1 mph (2 km/h)	87%	0.264%
07:00 10:00		Overcast.	52°F (11°C)	8 mph (14 km/h)	72%	0.264%
10:00 13:00		Overcast.	58°F (14°C)	14 mph (23 km/h)	61%	0.262%
13:00 16:00		Overcast.	65°F (18°C)	13 mph (20 km/h)	49%	0.26%
16:00 19:00		Overcast.	62°F (16°C)	9 mph (14 km/h)	61%	0.259%
19:00 22:00		Overcast.	59°F (15°C)	18 mph (29 km/h)	62%	0.259%
22:00 01:00		Overcast.	56°F (13°C)	16 mph (25 km/h)	63%	0.259%

Thursday, March 20

sunrise: 07:00 sunset: 19:05

Low around 26°F (-3°C), high around 61°F (16°C).
Chance of rain all morning and afternoon (between 4 am and 7 pm). Chance of snow in the evening and during the night (after 7 pm). The precipitation may fall as scattered showers of varying intensity. Estimated precipitation: 0.77 in (19.5 mm).
Overcast skies.
Wind: 26 mph (42 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Mostly clear.	52°F (11°C)	14 mph (22 km/h)	71%	0.259%
04:00 07:00		Chance of light rain. Precipitation: 0.02 in (0.4375 mm).	53°F (11°C)	16 mph (26 km/h)	83%	0.263%
07:00 10:00		Chance of scattered rain showers. Precipitation: 0.12 in (3 mm).	53°F (11°C)	17 mph (27 km/h)	89%	0.29%
10:00 13:00		Chance of rain. Precipitation: 0.06 in (1.5625 mm).	59°F (15°C)	24 mph (38 km/h)	74%	0.299%
13:00 16:00		Chance of rain. Precipitation: 0.35 in (9 mm).	56°F (13°C)	11 mph (17 km/h)	76%	0.366%
16:00 19:00		Chance of light rain. Precipitation: 0.03 in (0.8125 mm).	46°F (8°C)	15 mph (24 km/h)	81%	0.361%
19:00 22:00		Chance of snow. Precipitation: 0.1 in (2.625 mm).	31°F (-0°C)	26 mph (42 km/h)	95%	0.362%
22:00 01:00		Chance of snow. Precipitation: 0.08 in (2.0625 mm).	27°F (-3°C)	25 mph (40 km/h)	91%	0.353%

Friday, March 21

sunrise: 06:58 sunset: 19:06

Low around 23°F (-5°C), high around 31°F (-1°C).
Chance of light snow between 1 am and 4 am and during the afternoon (between 1 pm and 7 pm). Estimated precipitation: 0.06 in (1.5 mm).
Mostly cloudy skies.
Wind: 23 mph (37 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Chance of light snow. Precipitation: 0.02 in (0.625 mm).	24°F (-5°C)	23 mph (37 km/h)	89%	0.347%
04:00 07:00		Overcast.	23°F (-5°C)	21 mph (33 km/h)	82%	0.344%
07:00 10:00		Sunny.	26°F (-3°C)	19 mph (31 km/h)	76%	0.343%
10:00 13:00		Overcast.	30°F (-1°C)	19 mph (30 km/h)	70%	0.346%
13:00 16:00		Chance of light snow. Precipitation: 0.01 in (0.3125 mm).	30°F (-1°C)	18 mph (28 km/h)	79%	0.351%
16:00 19:00		Chance of light snow. Precipitation: 0.02 in (0.4375 mm).	29°F (-2°C)	16 mph (26 km/h)	79%	0.352%
19:00 22:00		Overcast.	26°F (-3°C)	13 mph (21 km/h)	84%	0.351%
22:00 01:00		Clear. Precipitation: 0 in (0.125 mm).	23°F (-5°C)	14 mph (22 km/h)	84%	0.35%

Saturday, March 22

sunrise: 06:56 sunset: 19:07

Low around 19°F (-7°C), high around 29°F (-2°C).
Estimated precipitation: 0 in (0.0625 mm).
More sun than clouds.
Wind: 16 mph (25 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Partly cloudy.	21°F (-6°C)	13 mph (21 km/h)	88%	0.351%
04:00 07:00		Sunny.	19°F (-7°C)	12 mph (20 km/h)	88%	0.353%
07:00 10:00		Sunny.	23°F (-5°C)	15 mph (24 km/h)	64%	0.354%
10:00 13:00		Overcast.	26°F (-3°C)	16 mph (25 km/h)	57%	0.357%
13:00 16:00		Overcast. Precipitation: 0 in (0.0625 mm).	29°F (-2°C)	15 mph (24 km/h)	55%	0.358%
16:00 19:00		Sunny.	26°F (-3°C)	9 mph (15 km/h)	71%	0.358%
19:00 22:00		Clear.	23°F (-5°C)	9 mph (15 km/h)	75%	0.359%
22:00 01:00		Clear.	20°F (-6°C)	8 mph (13 km/h)	82%	0.361%

Sunday, March 23

sunrise: 06:55 sunset: 19:09

Low around 19°F (-7°C), high around 35°F (2°C).
Partly cloudy skies.
Wind: 8 mph (12 km/h).

Time	Skies	Conditions	Temp	Wind	Humidity	Soil Moisture
01:00 04:00		Clear.	19°F (-7°C)	7 mph (12 km/h)	83%	0.363%
04:00 07:00		Sunny.	19°F (-7°C)	5 mph (8 km/h)	82%	0.365%
07:00 10:00		More sun than clouds.	26°F (-3°C)	7 mph (11 km/h)	57%	0.367%
10:00 13:00		Partly cloudy.	33°F (0°C)	7 mph (11 km/h)	45%	0.368%
13:00 16:00		Mostly cloudy.	35°F (2°C)	5 mph (9 km/h)	45%	0.367%
16:00 19:00		Considerable cloudiness.	30°F (-1°C)	2 mph (3 km/h)	59%	0.365%
19:00 22:00		Overcast.	29°F (-2°C)	6 mph (10 km/h)	60%	0.365%
22:00 01:00		Overcast.	29°F (-2°C)	8 mph (12 km/h)	63%	0.364%

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.