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Hazardous Weather Conditions

Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Overcast

13°F

-11°C

Humidity 30%
Wind Speed N 13 G 18 mph
Barometer 30.65 in
Dewpoint -13°F (-25°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 23 Jan 4:35 pm CST
Extended Forecast for

Harrisburg IL

Cold Weather Advisory January 23, 06:00pm until January 24, 01:00pm
Winter Storm Warning January 24, 12:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • This Afternoon

    This Afternoon: Mostly sunny, with a steady temperature around 15. Wind chill values as low as -1. North wind around 15 mph, with gusts as high as 22 mph.

    High: 15 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of snow after 4am. Increasing clouds, with a low around 8. Wind chill values as low as -6. North northeast wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 8 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Snow, mainly after 9am. High near 16. Wind chill values as low as -7. Northeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 16 °F

    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 13. Northeast wind 7 to 10 mph. Chance of precipitation is 100%.

    Low: 13 °F

    Snow

  • Sunday

    Sunday: Snow before 9am, then snow, possibly mixed with sleet between 9am and noon, then snow likely after noon. High near 18. North northwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 18 °F

    Snow/Sleet
    then Snow
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 1. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 1 °F

    Chance Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 14. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 14 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around -2. Southwest wind 3 to 8 mph.

    Low: -2 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 25. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 25 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a steady temperature around 15. Wind chill values as low as -1. North wind around 15 mph, with gusts as high as 22 mph.
Tonight
A 20 percent chance of snow after 4am. Increasing clouds, with a low around 8. Wind chill values as low as -6. North northeast wind 10 to 14 mph, with gusts as high as 22 mph.
Saturday
Snow, mainly after 9am. High near 16. Wind chill values as low as -7. Northeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
Snow. Low around 13. Northeast wind 7 to 10 mph. Chance of precipitation is 100%.
Sunday
Snow before 9am, then snow, possibly mixed with sleet between 9am and noon, then snow likely after noon. High near 18. North northwest wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 1. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 14. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around -2. Southwest wind 3 to 8 mph.
Tuesday
Sunny, with a high near 25. Southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 5. West southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 24. Calm wind becoming west northwest around 6 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 5. Light and variable wind becoming northwest around 6 mph after midnight.
Thursday
Partly sunny, with a high near 19. North northwest wind 5 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.58°W
Last Update:
3:16 pm CST Jan 23, 2026
Forecast Valid:
4pm CST Jan 23, 2026-6pm CST Jan 29, 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