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

31°F

-1°C

Humidity 44%
Wind Speed W 8 mph
Barometer 30.32 in
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 27 Jan 3:15 pm CST
Extended Forecast for

Harrisburg IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 30. West wind 6 to 8 mph.

    High: 30 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -1. Light west wind.

    Low: -1 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28. Wind chill values as low as -1. Calm wind becoming west southwest around 6 mph.

    High: 28 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11. Calm wind.

    Low: 11 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 27. Calm wind becoming north northeast around 5 mph.

    High: 27 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 8. North wind 3 to 5 mph.

    Low: 8 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 18. North wind 5 to 9 mph.

    High: 18 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 2. North wind around 7 mph.

    Low: 2 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 17. Northwest wind 6 to 9 mph.

    High: 17 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 30. West wind 6 to 8 mph.
Tonight
Partly cloudy, with a low around -1. Light west wind.
Wednesday
Mostly sunny, with a high near 28. Wind chill values as low as -1. Calm wind becoming west southwest around 6 mph.
Wednesday Night
Partly cloudy, with a low around 11. Calm wind.
Thursday
Mostly cloudy, with a high near 27. Calm wind becoming north northeast around 5 mph.
Thursday Night
Mostly cloudy, with a low around 8. North wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 18. North wind 5 to 9 mph.
Friday Night
Partly cloudy, with a low around 2. North wind around 7 mph.
Saturday
Mostly sunny, with a high near 17. Northwest wind 6 to 9 mph.
Saturday Night
Partly cloudy, with a low around 3. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 25. Calm wind becoming west around 6 mph in the morning.
Sunday Night
A slight chance of snow showers. Mostly cloudy, with a low around 13. Light southwest wind.
Monday
Partly sunny, with a high near 34. West wind 3 to 6 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
3:16 pm CST Jan 27, 2026
Forecast Valid:
3pm CST Jan 27, 2026-6pm CST Feb 2, 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