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.

Mostly Cloudy

59°F

15°C

Humidity 71%
Wind Speed N 20 G 28 mph
Barometer 29.92 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 27 Mar 2:15 am CDT
Extended Forecast for

Harrisburg IL

Freeze Warning March 28, 01:00am until March 28, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 48. West wind around 13 mph becoming north. Winds could gust as high as 22 mph.

    Low: 48 °F

    Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm before noon, then a slight chance of showers between noon and 1pm. Temperature falling to around 47 by 10am. North wind 14 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.

    High: 53 °F⇓

    Showers then
    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 31. North wind 6 to 13 mph, with gusts as high as 21 mph.

    Low: 31 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 56. North wind around 6 mph becoming east southeast in the afternoon.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. Light south southeast wind.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 69. South southwest wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 69 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. South wind 7 to 9 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. South southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. South southwest wind around 11 mph, with gusts as high as 22 mph.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 48. West wind around 13 mph becoming north. Winds could gust as high as 22 mph.
Friday
Showers and possibly a thunderstorm before noon, then a slight chance of showers between noon and 1pm. Temperature falling to around 47 by 10am. North wind 14 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%.
Friday Night
Mostly clear, with a low around 31. North wind 6 to 13 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 56. North wind around 6 mph becoming east southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 39. Light south southeast wind.
Sunday
Partly sunny, with a high near 69. South southwest wind 5 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 57. South wind 7 to 9 mph, with gusts as high as 18 mph.
Monday
Mostly sunny, with a high near 79. South southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Monday Night
Partly cloudy, with a low around 64. South southwest wind around 11 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 84. South southwest wind 13 to 17 mph, with gusts as high as 28 mph.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 65. South southwest wind around 14 mph, with gusts as high as 24 mph.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. South southwest wind 14 to 17 mph, with gusts as high as 26 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. South wind 11 to 13 mph, with gusts as high as 22 mph.
Thursday
Showers and thunderstorms likely. Mostly cloudy, with a high near 72. South southwest wind around 14 mph, with gusts as high as 23 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
Last Update:
1:56 am CDT Mar 27, 2026
Forecast Valid:
2am CDT Mar 27, 2026-6pm CDT Apr 2, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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