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 and Breezy

67°F

19°C

Humidity 71%
Wind Speed S 21 G 31 mph
Barometer 29.70 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 8 Jan 6:55 pm CST
Extended Forecast for

Harrisburg IL

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 3am. Steady temperature around 65. Breezy, with a south wind 15 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.

    Low: 65 °F

    Showers and
    Breezy

  • Friday

    Friday: Partly sunny, with a temperature falling to around 51 by 5pm. West wind 5 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.

    High: 56 °F⇓

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 43. Calm wind.

    Low: 43 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 49. Light northwest wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 49 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 26. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 26 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 36. Northwest wind 8 to 13 mph becoming light west northwest in the afternoon. Winds could gust as high as 21 mph.

    High: 36 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 22. Light and variable wind.

    Low: 22 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 46. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.

    High: 46 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. South southwest wind 6 to 8 mph.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 3am. Steady temperature around 65. Breezy, with a south wind 15 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.
Friday
Partly sunny, with a temperature falling to around 51 by 5pm. West wind 5 to 14 mph becoming north northeast in the afternoon. Winds could gust as high as 25 mph.
Friday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 43. Calm wind.
Saturday
A 30 percent chance of showers before noon. Cloudy through mid morning, then gradual clearing, with a high near 49. Light northwest wind becoming west northwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 26. West northwest wind 6 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 36. Northwest wind 8 to 13 mph becoming light west northwest in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 22. Light and variable wind.
Monday
Sunny, with a high near 46. Light south southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 18 mph.
Monday Night
Mostly clear, with a low around 33. South southwest wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 52. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 36. Southwest wind 6 to 8 mph.
Wednesday
Mostly cloudy, with a high near 44. West wind 6 to 10 mph becoming north northwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 25. North northwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 37. North northwest wind 5 to 7 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:
5:21 pm CST Jan 8, 2026
Forecast Valid:
7pm CST Jan 8, 2026-6pm CST Jan 15, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation