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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fog/Mist

47°F

8°C

Humidity 94%
Wind Speed SE 6 mph
Barometer 30.11 in
Dewpoint 45°F (7°C)
Visibility 3.00 mi
Wind Chill44°F (7°C)
Last update 20 Nov 4:35 am CST
Extended Forecast for

Grantfork IL

  • Today

    Today: A slight chance of rain before 1pm, then a slight chance of rain after 3pm. Patchy fog between 7am and 9am. Otherwise, cloudy, with a high near 56. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 56 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Tonight

    Tonight: A chance of rain and thunderstorms before midnight, then rain likely between midnight and 3am, then rain and possibly a thunderstorm after 3am. Patchy fog. Low around 52. Southeast wind 3 to 5 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Chance Rain
    and Patchy
    Fog then Rain
    and Patchy
    Fog

  • Friday

    Friday: Rain. High near 62. Light and variable wind becoming northeast 5 to 10 mph in the morning. Chance of precipitation is 90%.

    High: 62 °F

    Rain

  • Friday Night

    Friday Night: Rain likely before midnight. Mostly cloudy, with a low around 43. Northeast wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 57. Northeast wind 3 to 6 mph.

    High: 57 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday

    Monday: A 40 percent chance of rain. Mostly cloudy, with a high near 58.

    High: 58 °F

    Chance Rain

Detailed Forecast

Today
A slight chance of rain before 1pm, then a slight chance of rain after 3pm. Patchy fog between 7am and 9am. Otherwise, cloudy, with a high near 56. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.
Tonight
A chance of rain and thunderstorms before midnight, then rain likely between midnight and 3am, then rain and possibly a thunderstorm after 3am. Patchy fog. Low around 52. Southeast wind 3 to 5 mph. Chance of precipitation is 80%.
Friday
Rain. High near 62. Light and variable wind becoming northeast 5 to 10 mph in the morning. Chance of precipitation is 90%.
Friday Night
Rain likely before midnight. Mostly cloudy, with a low around 43. Northeast wind 6 to 8 mph. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 57. Northeast wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Mostly sunny, with a high near 61.
Sunday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 42.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 58.
Monday Night
Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grantfork IL
 38.82°N 89.65°W (Elev. 577 ft)
Last Update:
3:16 am CST Nov 20, 2025
Forecast Valid:
4am CST Nov 20, 2025-6pm CST Nov 26, 2025
 
Forecast Discussion
 
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Additional Resources

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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