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Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Overcast

72°F

22°C

Humidity 74%
Wind Speed SW 13 G 21 mph
Barometer 29.79 in
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 11 Mar 2:55 am CDT
Extended Forecast for

Harrisburg IL

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a steady temperature around 71. South southwest wind around 16 mph, with gusts as high as 29 mph.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms before 4pm, then showers likely. Temperature rising to near 70 by 10am, then falling to around 52 during the remainder of the day. Breezy, with a southwest wind 14 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 90%.

    High: 70 °F⇓

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 9 to 17 mph, with gusts as high as 29 mph.

    Low: 32 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 54. Northwest wind 5 to 7 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. South southwest wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 22 mph.

    Low: 41 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 62. Southwest wind 11 to 16 mph, with gusts as high as 26 mph.

    High: 62 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. West northwest wind around 5 mph becoming light and variable in the evening.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 67. East wind 6 to 9 mph becoming south southeast in the afternoon.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. South southeast wind 7 to 14 mph, with gusts as high as 23 mph.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Mostly cloudy, with a steady temperature around 71. South southwest wind around 16 mph, with gusts as high as 29 mph.
Wednesday
Showers and thunderstorms before 4pm, then showers likely. Temperature rising to near 70 by 10am, then falling to around 52 during the remainder of the day. Breezy, with a southwest wind 14 to 22 mph becoming northwest in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 90%.
Wednesday Night
A 10 percent chance of showers before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. North northwest wind 9 to 17 mph, with gusts as high as 29 mph.
Thursday
Sunny, with a high near 54. Northwest wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 41. South southwest wind 6 to 11 mph increasing to 12 to 17 mph after midnight. Winds could gust as high as 22 mph.
Friday
Mostly sunny, with a high near 62. Southwest wind 11 to 16 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 38. West northwest wind around 5 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 67. East wind 6 to 9 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 53. South southeast wind 7 to 14 mph, with gusts as high as 23 mph.
Sunday
A slight chance of showers and thunderstorms, then showers likely after 1pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 15 to 24 mph, with gusts as high as 34 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 29. Blustery, with a northwest wind 18 to 21 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 41. Northwest wind 15 to 17 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 22. Northwest wind 5 to 10 mph.
Tuesday
Partly sunny, with a high near 43. West northwest wind 3 to 7 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:
2:57 am CDT Mar 11, 2026
Forecast Valid:
3am CDT Mar 11, 2026-6pm CDT Mar 17, 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