National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

67°F

19°C

Humidity 29%
Wind Speed NA
Barometer 30.11 in
Dewpoint 33°F (1°C)
Visibility 7.00 mi
Last update 6 Nov 1:15 pm CST
Extended Forecast for

Harrisburg IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. Southeast wind 8 to 10 mph.

    High: 66 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 51. East southeast wind 6 to 13 mph becoming south southwest after midnight. Winds could gust as high as 25 mph.

    Low: 51 °F

    Increasing
    Clouds

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 71. West wind 7 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 71 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 43. Light west northwest wind.

    Low: 43 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 69. Calm wind becoming south southwest 5 to 9 mph in the afternoon.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 37. South southwest wind 7 to 13 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 37 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 45. Northwest wind 14 to 18 mph, with gusts as high as 25 mph.

    High: 45 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 23. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 42. Northwest wind 7 to 13 mph, with gusts as high as 18 mph.

    High: 42 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 66. Southeast wind 8 to 10 mph.
Tonight
Increasing clouds, with a low around 51. East southeast wind 6 to 13 mph becoming south southwest after midnight. Winds could gust as high as 25 mph.
Friday
A slight chance of showers, with thunderstorms also possible after 3pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 71. West wind 7 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 43. Light west northwest wind.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 69. Calm wind becoming south southwest 5 to 9 mph in the afternoon.
Saturday Night
A 40 percent chance of showers before midnight. Mostly cloudy, with a low around 37. South southwest wind 7 to 13 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
Sunday
Mostly sunny, with a high near 45. Northwest wind 14 to 18 mph, with gusts as high as 25 mph.
Sunday Night
Mostly clear, with a low around 23. Northwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 42. Northwest wind 7 to 13 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 25. Calm wind becoming southwest around 6 mph after midnight.
Veterans Day
Mostly sunny, with a high near 55. South southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 40. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 61. West southwest 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:
12:31 pm CST Nov 6, 2025
Forecast Valid:
1pm CST Nov 6, 2025-6pm CST Nov 12, 2025
 
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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