Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

29°F

-2°C

Humidity 33%
Wind Speed W 7 mph
Barometer 30.32 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 28 Jan 1:55 pm CST
Extended Forecast for

Harrisburg IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 27. West wind around 5 mph becoming calm.

    High: 27 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 11. Calm wind.

    Low: 11 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 28. Calm wind becoming northeast around 5 mph.

    High: 28 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers after midnight.  Mostly cloudy, with a low around 10. North northeast wind 3 to 5 mph.

    Low: 10 °F

    Cloudy then
    Slight Chance
    Snow Showers

  • Friday

    Friday: Partly sunny, with a high near 20. North wind 5 to 9 mph.

    High: 20 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 3. North wind 7 to 9 mph.

    Low: 3 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 17. North northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 17 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 3. Northwest wind 5 to 7 mph becoming calm  after midnight.

    Low: 3 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 25. Calm wind becoming west around 6 mph in the afternoon.

    High: 25 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 27. West wind around 5 mph becoming calm.
Tonight
Mostly cloudy, with a low around 11. Calm wind.
Thursday
Mostly cloudy, with a high near 28. Calm wind becoming northeast around 5 mph.
Thursday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 10. North northeast wind 3 to 5 mph.
Friday
Partly sunny, with a high near 20. North wind 5 to 9 mph.
Friday Night
Mostly cloudy, with a low around 3. North wind 7 to 9 mph.
Saturday
Partly sunny, with a high near 17. North northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 3. Northwest wind 5 to 7 mph becoming calm after midnight.
Sunday
Partly sunny, with a high near 25. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 13. Light south southwest wind.
Monday
Partly sunny, with a high near 34. West southwest wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 17. Light southwest wind.
Tuesday
Partly sunny, with a high near 37. Calm wind becoming southwest around 6 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
12:21 pm CST Jan 28, 2026
2pm CST Jan 28, 2026-6pm CST Feb 3, 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