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

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

40°F

4°C

Humidity 66%
Wind Speed N 3 mph
Barometer 30.33 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 11 Feb 10:35 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: Sunny, with a high near 48. North wind 3 to 8 mph.

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 29. North wind around 5 mph becoming calm in the evening.

    Low: 29 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 49. Calm wind.

    High: 49 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 55. Light southeast wind.

    High: 55 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 52. Calm wind becoming east around 6 mph in the afternoon.

    High: 52 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers. Mostly cloudy, with a low around 43. East wind around 6 mph.

    Low: 43 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before noon. Mostly sunny, with a high near 54. East northeast wind 6 to 8 mph becoming north in the afternoon.

    High: 54 °F

    Chance
    Showers then
    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 48. North wind 3 to 8 mph.
Tonight
Partly cloudy, with a low around 29. North wind around 5 mph becoming calm in the evening.
Thursday
Mostly cloudy, with a high near 49. Calm wind.
Thursday Night
Mostly cloudy, with a low around 31. Calm wind.
Friday
Mostly sunny, with a high near 55. Light southeast wind.
Friday Night
Mostly cloudy, with a low around 36. Calm wind.
Saturday
A 40 percent chance of showers, mainly after noon. Mostly cloudy, with a high near 52. Calm wind becoming east around 6 mph in the afternoon.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 43. East wind around 6 mph.
Sunday
A chance of showers before noon. Mostly sunny, with a high near 54. East northeast wind 6 to 8 mph becoming north in the afternoon.
Sunday Night
Partly cloudy, with a low around 39. North wind around 5 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 59. Calm wind becoming south southeast around 6 mph in the morning.
Monday Night
Mostly cloudy, with a low around 45. South southeast wind 3 to 6 mph.
Tuesday
Mostly cloudy, with a high near 65. South wind 7 to 14 mph, with gusts as high as 23 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
10:37 am CST Feb 11, 2026
Forecast Valid:
10am CST Feb 11, 2026-6pm CST Feb 17, 2026
 
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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