Hourly Weather Forecast - Algonquin, IL

12 AM
19°F
30%
13mph
WNW
30 % Chance of Heavy Snow
Humidity
66%
Feels like
6°F
Dew Point
10°F
1 AM
18°F
30%
13mph
WNW
30 % Chance of Heavy Snow
Humidity
64%
Feels like
5°F
Dew Point
8°F
2 AM
18°F
30%
12mph
WNW
30% Chance of Snow
Humidity
64%
Feels like
5°F
Dew Point
8°F
3 AM
18°F
30%
11mph
WNW
30% Chance Snow Showers
Humidity
62%
Feels like
6°F
Dew Point
8°F
4 AM
18°F
30%
11mph
WNW
30% Chance of Snow
Humidity
60%
Feels like
6°F
Dew Point
7°F
5 AM
18°F
30%
10mph
WNW
30% Chance of Snow
Humidity
57%
Feels like
7°F
Dew Point
5°F
6 AM
17°F
10%
9mph
WNW
Partly Cloudy
Humidity
58%
Feels like
6°F
Dew Point
5°F
7 AM
17°F
10%
7mph
WNW
Partly Cloudy
Humidity
51%
Feels like
8°F
Dew Point
2°F
7:17 AM
8 AM
17°F
10%
6mph
WNW
Mostly Sunny
Humidity
53%
Feels like
8°F
Dew Point
2°F
9 AM
17°F
10%
6mph
WNW
Sunny
Humidity
52%
Feels like
8°F
Dew Point
3°F
10 AM
18°F
10%
6mph
W
Sunny
Humidity
52%
Feels like
9°F
Dew Point
4°F
11 AM
19°F
10%
6mph
W
Sunny
Humidity
52%
Feels like
10°F
Dew Point
4°F
12 PM
20°F
10%
6mph
WSW
Sunny
Humidity
52%
Feels like
11°F
Dew Point
5°F
1 PM
21°F
10%
6mph
SW
Sunny
Humidity
52%
Feels like
13°F
Dew Point
6°F
2 PM
22°F
10%
6mph
SSW
Sunny
Humidity
52%
Feels like
14°F
Dew Point
7°F
3 PM
23°F
20%
6mph
SSW
Sunny
Humidity
53%
Feels like
15°F
Dew Point
8°F
4 PM
24°F
20%
6mph
S
Sunny
Humidity
54%
Feels like
16°F
Dew Point
10°F
4:23 PM
5 PM
24°F
30%
7mph
S
30% Chance Frozen Mix
Humidity
58%
Feels like
16°F
Dew Point
11°F
6 PM
23°F
20%
7mph
S
Clear
Humidity
60%
Feels like
15°F
Dew Point
11°F
7 PM
23°F
20%
8mph
S
Clear
Humidity
64%
Feels like
14°F
Dew Point
13°F
8 PM
23°F
20%
8mph
S
Clear
Humidity
66%
Feels like
14°F
Dew Point
13°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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