Hourly Weather Forecast - Algonquin, IL

12 AM
19°F
0%
1mph
SW
Clear
Humidity
82%
Feels like
19°F
Dew Point
15°F
1 AM
19°F
0%
1mph
SW
Clear
Humidity
82%
Feels like
19°F
Dew Point
15°F
2 AM
19°F
0%
1mph
SSW
Mostly Clear
Humidity
81%
Feels like
19°F
Dew Point
14°F
3 AM
19°F
0%
1mph
SSW
Mostly Clear
Humidity
82%
Feels like
19°F
Dew Point
14°F
4 AM
19°F
0%
2mph
SSW
Partly Cloudy
Humidity
82%
Feels like
19°F
Dew Point
15°F
5 AM
19°F
0%
2mph
SSW
Partly Cloudy
Humidity
84%
Feels like
19°F
Dew Point
15°F
6 AM
19°F
0%
3mph
SSW
Mostly Cloudy
Humidity
83%
Feels like
19°F
Dew Point
15°F
7 AM
21°F
0%
4mph
SSW
Mostly Cloudy
Humidity
84%
Feels like
16°F
Dew Point
17°F
7:15 AM
8 AM
23°F
0%
4mph
SSW
Partly Cloudy
Humidity
82%
Feels like
17°F
Dew Point
19°F
9 AM
26°F
0%
6mph
SSW
Partly Cloudy
Humidity
81%
Feels like
19°F
Dew Point
21°F
10 AM
28°F
0%
6mph
SSW
Partly Cloudy
Humidity
80%
Feels like
21°F
Dew Point
22°F
11 AM
30°F
0%
7mph
SSW
Mostly Sunny
Humidity
78%
Feels like
23°F
Dew Point
24°F
12 PM
31°F
0%
8mph
SSW
Partly Cloudy
Humidity
76%
Feels like
24°F
Dew Point
25°F
1 PM
33°F
0%
9mph
SSW
Mostly Sunny
Humidity
76%
Feels like
25°F
Dew Point
26°F
2 PM
33°F
0%
9mph
SSW
Mostly Sunny
Humidity
78%
Feels like
26°F
Dew Point
27°F
3 PM
34°F
0%
10mph
SSW
Mostly Sunny
Humidity
81%
Feels like
26°F
Dew Point
28°F
4 PM
34°F
0%
10mph
SW
Sunny
Humidity
84%
Feels like
26°F
Dew Point
29°F
4:22 PM
5 PM
34°F
0%
11mph
SW
Clear
Humidity
86%
Feels like
26°F
Dew Point
30°F
6 PM
35°F
0%
11mph
SW
Clear
Humidity
86%
Feels like
27°F
Dew Point
31°F
7 PM
36°F
0%
11mph
SW
Clear
Humidity
87%
Feels like
28°F
Dew Point
32°F
8 PM
36°F
0%
11mph
SW
Clear
Humidity
87%
Feels like
29°F
Dew Point
33°F
9 PM
37°F
0%
11mph
SW
Clear
Humidity
87%
Feels like
29°F
Dew Point
33°F
10 PM
37°F
0%
10mph
SW
Partly Cloudy
Humidity
88%
Feels like
30°F
Dew Point
34°F
11 PM
37°F
0%
10mph
WSW
Mostly Cloudy
Humidity
88%
Feels like
30°F
Dew Point
34°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

In the path of a weak low-pressure system that brings snow to the Midwest and Northeast, extreme cold weather and brutally cold wind chill values will bring a bitter cold to much of the Nation.

Snowfall forecast through Sunday evening.

Snow Spreads Across the Ohio Valley into the Mid-Atlantic

Weekend Weather Outlook

Weekend Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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