National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

25°F

-4°C

Humidity 62%
Wind Speed W 9 mph
Barometer 30.40 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 30 Dec 9:55 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: Increasing clouds, with a high near 35. West wind 7 to 9 mph.

    High: 35 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 27. West southwest wind 6 to 8 mph.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 43. West wind 5 to 9 mph.

    High: 43 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 26. Light and variable wind.

    Low: 26 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 41. Calm wind becoming north northeast around 5 mph.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30. Calm wind.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, with a high near 49. Calm wind becoming east around 5 mph.

    High: 49 °F

    Cloudy

  • Friday Night

    Friday Night: A slight chance of showers before midnight. Mostly cloudy, with a low around 29. North northeast wind 3 to 5 mph.

    Low: 29 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 44. North northeast wind 3 to 6 mph.

    High: 44 °F

    Mostly Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 35. West wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 27. West southwest wind 6 to 8 mph.
Wednesday
Increasing clouds, with a high near 43. West wind 5 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 26. Light and variable wind.
New Year's Day
Mostly sunny, with a high near 41. Calm wind becoming north northeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 30. Calm wind.
Friday
Cloudy, with a high near 49. Calm wind becoming east around 5 mph.
Friday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 29. North northeast wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 44. North northeast wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 27. Calm wind.
Sunday
Mostly sunny, with a high near 50. Calm wind becoming south around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 35. Southwest wind 3 to 5 mph.
Monday
Sunny, with a high near 51. West wind 5 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
5:41 am CST Dec 30, 2025
Forecast Valid:
10am CST Dec 30, 2025-6pm CST Jan 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation