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.

Thunderstorm Heavy Rain

61°F

16°C

Humidity 93%
Wind Speed Calm
Barometer 30.11 in
Dewpoint 59°F (15°C)
Visibility 1.75 mi
Last update 4 Mar 10:55 am CST
Extended Forecast for

Harrisburg IL

  • Today

    Today: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 75. South southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.

    High: 75 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Some of the storms could be severe. Low around 60. South wind 5 to 9 mph. Chance of precipitation is 90%.

    Low: 60 °F

    Severe
    Thunderstorms
    then Showers

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 1pm. High near 72. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.

    High: 72 °F

    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South wind 3 to 6 mph. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers. Partly sunny, with a high near 79. South wind 7 to 16 mph, with gusts as high as 24 mph.

    High: 79 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.

    Low: 60 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers and possibly a thunderstorm before noon, then a chance of showers. High near 68. South southwest wind 7 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%.

    High: 68 °F

    Showers then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers. Partly cloudy, with a low around 43. West northwest wind around 6 mph becoming calm in the evening.

    Low: 43 °F

    Slight Chance
    Showers

  • Sunday

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

    High: 65 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe. High near 75. South southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Some of the storms could be severe. Low around 60. South wind 5 to 9 mph. Chance of precipitation is 90%.
Thursday
Showers and thunderstorms, mainly before 1pm. High near 72. Southwest wind 6 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South wind 3 to 6 mph. Chance of precipitation is 50%.
Friday
A 20 percent chance of showers. Partly sunny, with a high near 79. South wind 7 to 16 mph, with gusts as high as 24 mph.
Friday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
Saturday
Showers and possibly a thunderstorm before noon, then a chance of showers. High near 68. South southwest wind 7 to 13 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 43. West northwest wind around 6 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 65. Calm wind becoming west southwest around 5 mph.
Sunday Night
Mostly clear, with a low around 49. Light south southwest wind.
Monday
Sunny, with a high near 75. Light south southwest wind increasing to 5 to 9 mph in the morning.
Monday Night
A chance of showers. Partly cloudy, with a low around 61. South southwest wind 7 to 9 mph, with gusts as high as 18 mph.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. South southwest wind 10 to 17 mph, with gusts as high as 28 mph.
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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:
10:12 am CST Mar 4, 2026
Forecast Valid:
11am CST Mar 4, 2026-6pm CDT Mar 10, 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