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.

Mostly Cloudy

62°F

17°C

Humidity 79%
Wind Speed NW 14 G 17 mph
Barometer 29.98 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 7 Mar 5:15 pm CST
Extended Forecast for

Harrisburg IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 58. West wind around 9 mph.

    High: 58 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 41. West northwest wind 6 to 11 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.

    Low: 41 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65. Calm wind becoming southwest around 5 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45. Calm wind becoming south southwest around 6 mph after midnight.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms between midnight and 3am, then a slight chance of showers after 3am. Partly cloudy, with a low around 61. South southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 78. South southwest wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.

    High: 78 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Cloudy, with a low around 63. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. Cloudy, with a high near 73. South southwest wind 16 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph.

    High: 73 °F

    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 58. West wind around 9 mph.
Tonight
A 20 percent chance of showers before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 41. West northwest wind 6 to 11 mph becoming light northwest after midnight. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 65. Calm wind becoming southwest around 5 mph.
Sunday Night
Clear, with a low around 45. Calm wind becoming south southwest around 6 mph after midnight.
Monday
Sunny, with a high near 74. South southwest wind 6 to 14 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of showers and thunderstorms between midnight and 3am, then a slight chance of showers after 3am. Partly cloudy, with a low around 61. South southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 78. South southwest wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Cloudy, with a low around 63. South southwest wind 14 to 17 mph, with gusts as high as 28 mph.
Wednesday
Showers and possibly a thunderstorm. Cloudy, with a high near 73. South southwest wind 16 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph.
Wednesday Night
A chance of showers, mainly before midnight. Partly cloudy, with a low around 35. Northwest wind around 15 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 55. Northwest wind 5 to 14 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 40. Light west southwest wind becoming south 6 to 11 mph in the evening. Winds could gust as high as 21 mph.
Friday
Partly sunny, with a high near 66. Southwest wind 13 to 18 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 42. Southwest wind 7 to 10 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Saturday
Partly sunny, with a high near 61. East wind 7 to 11 mph, with gusts as high as 18 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:
4:46 pm CST Mar 7, 2026
Forecast Valid:
5pm CST Mar 7, 2026-6pm CDT Mar 14, 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