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

46°F

8°C

Humidity 83%
Wind Speed S 5 mph
Barometer 29.96 in
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 9 Mar 3:55 am CDT
Extended Forecast for

Harrisburg IL

  • Today

    Today: Partly sunny, with a high near 72. South southwest wind 6 to 15 mph, with gusts as high as 24 mph.

    High: 72 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between midnight and 1am. Mostly cloudy, with a low around 62. South southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 62 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 78. South southwest wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 78 °F

    Patchy Fog
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 66. South southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    Low: 66 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 72. South southwest wind 15 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.

    High: 72 °F

    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. North northwest wind 10 to 17 mph, with gusts as high as 26 mph.

    Low: 35 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 53. North northwest wind around 7 mph.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. South southwest wind 5 to 14 mph, with gusts as high as 24 mph.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 65. Southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 65 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 72. South southwest wind 6 to 15 mph, with gusts as high as 24 mph.
Tonight
A slight chance of showers and thunderstorms between midnight and 1am. Mostly cloudy, with a low around 62. South southwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Patchy fog between 8am and 9am. Otherwise, mostly cloudy, with a high near 78. South southwest wind 7 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 66. South southwest wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 72. South southwest wind 15 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 100%.
Wednesday Night
A 30 percent chance of showers before 1am. Mostly cloudy, with a low around 35. North northwest wind 10 to 17 mph, with gusts as high as 26 mph.
Thursday
Sunny, with a high near 53. North northwest wind around 7 mph.
Thursday Night
Mostly cloudy, with a low around 41. South southwest wind 5 to 14 mph, with gusts as high as 24 mph.
Friday
Partly sunny, with a high near 65. Southwest wind 10 to 16 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 40. Northwest wind around 5 mph becoming light and variable.
Saturday
Sunny, with a high near 67. East wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly cloudy, with a low around 51. South wind 8 to 13 mph, with gusts as high as 22 mph.
Sunday
A chance of showers. Mostly cloudy, with a high near 70. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 28 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
1:26 am CDT Mar 9, 2026
Forecast Valid:
4am CDT Mar 9, 2026-6pm CDT Mar 15, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation