Current conditions at

Harrisburg-Raleigh Airport (KHSB)

Lat: 37.81°NLon: 88.54°WElev: 387ft.

Fair

10°F

-12°C

Humidity 47%
Wind Speed W 10 mph
Barometer 30.52 in
Dewpoint -6°F (-21°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 26 Jan 12:35 pm CST
Extended Forecast for

Harrisburg IL

Extreme Cold Warning January 26, 12:44pm until January 27, 10:00am
Click here for hazard details and duration
Extreme Cold Warning
  •  
    Extreme Cold Warning January 26, 12:44pm until January 27, 10:00am

    NOW until 10:00am Tue

    Extreme Cold Warning

  • This Afternoon

    High: 13 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a temperature rising to around 11 by 4am. Wind chill values as low as -10. Light southwest wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 22 mph.

    Low: 7 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. Wind chill values as low as -1. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -1. Light north northwest wind.

    Low: -1 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 28. Calm wind becoming west around 6 mph.

    High: 28 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 10. Calm wind.

    Low: 10 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 22. Calm wind becoming north around 5 mph.

    High: 22 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 2. Light north wind.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 13. Wind chill values as low as -6. West wind 6 to 11 mph becoming light west southwest.
Tonight
Mostly clear, with a temperature rising to around 11 by 4am. Wind chill values as low as -10. Light southwest wind increasing to 6 to 11 mph in the evening. Winds could gust as high as 22 mph.
Tuesday
Mostly sunny, with a high near 30. Wind chill values as low as -1. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around -1. Light north northwest wind.
Wednesday
Mostly sunny, with a high near 28. Calm wind becoming west around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 10. Calm wind.
Thursday
Mostly cloudy, with a high near 22. Calm wind becoming north around 5 mph.
Thursday Night
Mostly cloudy, with a low around 2. Light north wind.
Friday
Partly sunny, with a high near 15. North wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around -1. North northwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 19. Northwest wind 5 to 7 mph.
Saturday Night
Partly cloudy, with a low around 2. Light west northwest wind.
Sunday
Mostly sunny, with a high near 26. Light and variable wind becoming west around 6 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrisburg IL
 37.74°N 88.55°W
12:31 pm CST Jan 26, 2026
12pm CST Jan 26, 2026-6pm CST Feb 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database