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.

Partly Cloudy

44°F

7°C

Humidity 75%
Wind Speed SW 12 G 17 mph
Barometer 30.08 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 21 Jan 3:55 pm CST
Extended Forecast for

Harrisburg IL

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 45. Southwest wind 7 to 9 mph.

    High: 45 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 24. Southwest wind around 6 mph becoming light and variable after midnight.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 18. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 23. North wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 23 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of snow showers after midnight. Cloudy, with a low around 7. North northeast wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 7 °F

    Cloudy then
    Chance Snow
    Showers

  • Saturday

    Saturday: Snow showers. High near 17. Northeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.

    High: 17 °F

    Snow Showers

  • Saturday Night

    Saturday Night: Snow showers. Cloudy, with a low around 11. Northeast wind 7 to 10 mph.

    Low: 11 °F

    Snow Showers

  • Sunday

    Sunday: A chance of snow showers before noon. Mostly cloudy, with a high near 19. North northwest wind 7 to 9 mph.

    High: 19 °F

    Chance Snow
    Showers then
    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 45. Southwest wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 24. Southwest wind around 6 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 40. Calm wind.
Thursday Night
Mostly cloudy, with a low around 18. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.
Friday
Mostly cloudy, with a high near 23. North wind 11 to 14 mph, with gusts as high as 23 mph.
Friday Night
A 30 percent chance of snow showers after midnight. Cloudy, with a low around 7. North northeast wind 10 to 13 mph, with gusts as high as 22 mph.
Saturday
Snow showers. High near 17. Northeast wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 80%.
Saturday Night
Snow showers. Cloudy, with a low around 11. Northeast wind 7 to 10 mph.
Sunday
A chance of snow showers before noon. Mostly cloudy, with a high near 19. North northwest wind 7 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 2. Northwest wind around 6 mph.
Monday
Mostly sunny, with a high near 18. West northwest wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 1. Light west southwest wind.
Tuesday
Mostly sunny, with a high near 27. South southwest wind 3 to 7 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
3:41 pm CST Jan 21, 2026
Forecast Valid:
4pm CST Jan 21, 2026-6pm CST Jan 27, 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