Hourly Weather Forecast - Harrisburg, IL

12 AM
47°F
20%
5mph
S
Mostly Cloudy
Humidity
89%
Feels like
45°F
Dew Point
44°F
1 AM
48°F
20%
5mph
S
Mostly Cloudy
Humidity
92%
Feels like
45°F
Dew Point
45°F
2 AM
48°F
20%
5mph
SSW
Cloudy
Humidity
94%
Feels like
46°F
Dew Point
46°F
3 AM
48°F
30%
5mph
SSW
30% Chance of Light Rain
Humidity
95%
Feels like
46°F
Dew Point
47°F
4 AM
49°F
30%
5mph
SSW
30% Chance of Light Rain
Humidity
96%
Feels like
47°F
Dew Point
48°F
5 AM
49°F
30%
5mph
SSW
30% Chance of Light Rain
Humidity
97%
Feels like
47°F
Dew Point
48°F
6 AM
49°F
30%
5mph
SSW
30% Chance of Light Rain
Humidity
97%
Feels like
47°F
Dew Point
49°F
7 AM
50°F
30%
5mph
SSW
30% Chance of Light Rain
Humidity
96%
Feels like
50°F
Dew Point
49°F
7:06 AM
8 AM
51°F
30%
5mph
SSW
30% Chance of Light Rain
Humidity
94%
Feels like
51°F
Dew Point
49°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today's 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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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