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.

Overcast

77°F

25°C

Humidity 64%
Wind Speed SW 18 G 23 mph
Barometer 29.93 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 10 Mar 1:15 pm CDT
Extended Forecast for

Harrisburg IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. South southwest wind 14 to 16 mph, with gusts as high as 24 mph.

    High: 79 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 64. South southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    Low: 64 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms before 4pm, then a chance of showers. Temperature rising to near 72 by noon, then falling to around 57 during the remainder of the day. Breezy, with a southwest wind 16 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 100%.

    High: 72 °F⇓

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 7pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 34. North northwest wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 54. North northwest wind around 6 mph becoming west southwest in the afternoon.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. South wind 5 to 15 mph, with gusts as high as 26 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64. Southwest wind 11 to 16 mph, with gusts as high as 28 mph.

    High: 64 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. Northwest wind around 6 mph becoming light and variable after midnight.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69. East wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph.

    High: 69 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 79. South southwest wind 14 to 16 mph, with gusts as high as 24 mph.
Tonight
A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 64. South southwest wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms before 4pm, then a chance of showers. Temperature rising to near 72 by noon, then falling to around 57 during the remainder of the day. Breezy, with a southwest wind 16 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 100%.
Wednesday Night
A slight chance of showers between 7pm and 1am. Cloudy, then gradually becoming partly cloudy, with a low around 34. North northwest wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 54. North northwest wind around 6 mph becoming west southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 41. South wind 5 to 15 mph, with gusts as high as 26 mph.
Friday
Partly sunny, with a high near 64. Southwest wind 11 to 16 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 39. Northwest wind around 6 mph becoming light and variable after midnight.
Saturday
Sunny, with a high near 69. East wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 55. South wind 7 to 13 mph, with gusts as high as 23 mph.
Sunday
Showers likely. Partly sunny, with a high near 69. Breezy, with a south wind 14 to 21 mph, with gusts as high as 31 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 25. Northwest wind 15 to 17 mph, with gusts as high as 28 mph.
Monday
Mostly sunny, with a high near 39. Northwest wind around 14 mph, with gusts as high as 23 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:
1:12 pm CDT Mar 10, 2026
Forecast Valid:
1pm CDT Mar 10, 2026-6pm CDT Mar 16, 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