Hourly Weather Forecast - Algonquin, IL

5 AM
16°F
0%
4mph
NW
Clear
Humidity
73%
Feels like
9°F
Dew Point
9°F
6 AM
16°F
0%
3mph
NW
Clear
Humidity
74%
Feels like
16°F
Dew Point
9°F
7 AM
16°F
0%
2mph
NW
Clear
Humidity
75%
Feels like
16°F
Dew Point
10°F
7:18 AM
8 AM
17°F
0%
1mph
WNW
Sunny
Humidity
70%
Feels like
17°F
Dew Point
10°F
9 AM
20°F
0%
0mph
W
Sunny
Humidity
64%
Feels like
20°F
Dew Point
10°F
10 AM
22°F
0%
1mph
WSW
Sunny
Humidity
60%
Feels like
22°F
Dew Point
10°F
11 AM
24°F
0%
2mph
SW
Sunny
Humidity
57%
Feels like
24°F
Dew Point
11°F
12 PM
26°F
0%
2mph
SSW
Sunny
Humidity
57%
Feels like
26°F
Dew Point
13°F
1 PM
28°F
0%
3mph
SW
Sunny
Humidity
55%
Feels like
28°F
Dew Point
14°F
2 PM
29°F
0%
3mph
SW
Sunny
Humidity
54%
Feels like
29°F
Dew Point
14°F
3 PM
29°F
0%
3mph
SW
Sunny
Humidity
55%
Feels like
29°F
Dew Point
15°F
4 PM
28°F
0%
3mph
SSW
Sunny
Humidity
58%
Feels like
28°F
Dew Point
15°F
4:24 PM
5 PM
27°F
0%
3mph
SSW
Clear
Humidity
61%
Feels like
27°F
Dew Point
15°F
6 PM
26°F
0%
3mph
S
Partly Cloudy
Humidity
57%
Feels like
22°F
Dew Point
13°F
7 PM
25°F
0%
4mph
S
Partly Cloudy
Humidity
62%
Feels like
21°F
Dew Point
14°F
8 PM
26°F
0%
5mph
S
Partly Cloudy
Humidity
63%
Feels like
20°F
Dew Point
15°F
9 PM
26°F
0%
5mph
S
Partly Cloudy
Humidity
62%
Feels like
20°F
Dew Point
15°F
10 PM
27°F
0%
5mph
S
Mostly Cloudy
Humidity
64%
Feels like
20°F
Dew Point
16°F
11 PM
28°F
10%
6mph
S
Mostly Cloudy
Humidity
66%
Feels like
21°F
Dew Point
18°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

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Today's Weather Outlook

Today's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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