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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

37°F

3°C

Humidity 75%
Wind Speed E 6 mph
Barometer 29.91 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 6 Dec 4:50 pm CST
Extended Forecast for

Hartford IL

  • Tonight

    Tonight: A slight chance of rain between midnight and 2am. Cloudy, with a low around 33. South wind 3 to 8 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Cloudy then
    Slight Chance
    Rain

  • Sunday

    Sunday: A slight chance of drizzle between 3pm and 4pm. Cloudy, with a temperature rising to near 37 by 11am, then falling to around 30 during the remainder of the day. Light and variable wind becoming north 9 to 14 mph in the morning. Winds could gust as high as 23 mph.

    High: 37 °F⇓

    Slight Chance
    Drizzle

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18. North wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 33. North wind around 6 mph becoming calm in the morning.

    High: 33 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. Light south wind increasing to 5 to 9 mph in the evening.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

Detailed Forecast

Tonight
A slight chance of rain between midnight and 2am. Cloudy, with a low around 33. South wind 3 to 8 mph. Chance of precipitation is 20%.
Sunday
A slight chance of drizzle between 3pm and 4pm. Cloudy, with a temperature rising to near 37 by 11am, then falling to around 30 during the remainder of the day. Light and variable wind becoming north 9 to 14 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 18. North wind 6 to 11 mph, with gusts as high as 22 mph.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 33. North wind around 6 mph becoming calm in the morning.
Monday Night
Partly cloudy, with a low around 24. Light south wind increasing to 5 to 9 mph in the evening.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.
Thursday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 38.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 27.
Friday Night
Partly cloudy, with a low around 8.
Saturday
Mostly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hartford IL
 38.84°N 90.11°W (Elev. 407 ft)
Last Update:
4:56 pm CST Dec 6, 2025
Forecast Valid:
5pm CST Dec 6, 2025-6pm CST Dec 13, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation