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

53°F

12°C

Humidity 24%
Wind Speed W 5 mph
Barometer 30.17 in
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 12 Mar 5:35 pm CDT
Extended Forecast for

Harrisburg IL

  • Tonight

    Tonight: Partly cloudy, with a low around 42. South wind 5 to 10 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 36 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 63. Southwest wind 11 to 18 mph, with gusts as high as 36 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. West northwest wind around 5 mph becoming calm in the evening.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 67. East northeast wind 5 to 9 mph becoming south southeast in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Southeast wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Breezy, with a south wind 14 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.

    High: 72 °F

    Breezy.
    Mostly Cloudy
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before 1am, then a chance of rain and snow showers. Some thunder is also possible. Low around 27. Blustery, with a south southwest wind 21 to 23 mph becoming west northwest after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 90%.

    Low: 27 °F

    Showers and
    Breezy then
    Rain/Snow and
    Blustery

  • Monday

    Monday: Mostly cloudy, with a high near 34. Breezy, with a west northwest wind 20 to 23 mph, with gusts as high as 33 mph.

    High: 34 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 15. West northwest wind 7 to 15 mph, with gusts as high as 21 mph.

    Low: 15 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 42. South wind 5 to 10 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 36 mph.
Friday
Mostly sunny, with a high near 63. Southwest wind 11 to 18 mph, with gusts as high as 36 mph.
Friday Night
Mostly clear, with a low around 36. West northwest wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 67. East northeast wind 5 to 9 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 54. Southeast wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday
Showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 72. Breezy, with a south wind 14 to 24 mph, with gusts as high as 36 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers before 1am, then a chance of rain and snow showers. Some thunder is also possible. Low around 27. Blustery, with a south southwest wind 21 to 23 mph becoming west northwest after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 90%.
Monday
Mostly cloudy, with a high near 34. Breezy, with a west northwest wind 20 to 23 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 15. West northwest wind 7 to 15 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 37. West wind 6 to 8 mph.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 26. West wind 5 to 7 mph becoming south southeast in the evening.
Wednesday
A slight chance of rain and snow showers. Mostly cloudy, with a high near 55. South southwest wind 9 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 39. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 66. Southwest wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
5:36 pm CDT Mar 12, 2026
Forecast Valid:
5pm CDT Mar 12, 2026-6pm CDT Mar 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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