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

45°F

7°C

Humidity 38%
Wind Speed W 13 G 18 mph
Barometer 29.94 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 20 Feb 11:35 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: Sunny, with a high near 50. West wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 32. Light north wind.

    Low: 32 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 45. Northwest wind 3 to 8 mph.

    High: 45 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 38. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 18. Northwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 18 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 35. North northwest wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 35 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 18. Light and variable wind.

    Low: 18 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 46. Light south southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 46 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 50. West wind 5 to 11 mph, with gusts as high as 21 mph.
Tonight
Increasing clouds, with a low around 32. Light north wind.
Saturday
Partly sunny, with a high near 45. Northwest wind 3 to 8 mph.
Saturday Night
Mostly clear, with a low around 24. Northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 38. Northwest wind 10 to 17 mph, with gusts as high as 28 mph.
Sunday Night
Mostly clear, with a low around 18. Northwest wind around 11 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 35. North northwest wind 6 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 18. Light and variable wind.
Tuesday
Mostly sunny, with a high near 46. Light south southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 38. South southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 56. Southwest wind 9 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 36. Southwest wind 6 to 8 mph becoming northwest after midnight.
Thursday
A slight chance of showers. Mostly sunny, with a high near 55. North northwest wind 6 to 8 mph becoming northeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
11:27 am CST Feb 20, 2026
Forecast Valid:
11am CST Feb 20, 2026-6pm CST Feb 26, 2026
 
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Additional Resources

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