Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

62°F

17°C

Humidity 86%
Wind Speed S 9 mph
Barometer 29.86 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 10 Mar 1:35 am CDT
Extended Forecast for

Grantfork IL

  • Overnight

    Overnight: Mostly clear, with a low around 60. South wind 8 to 10 mph.

    Low: 60 °F

    Mostly Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 80. South wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 80 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am.  Mostly cloudy, with a low around 54. Southwest wind 15 to 17 mph, with gusts as high as 33 mph.  Chance of precipitation is 70%.

    Low: 54 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 1pm, then showers likely between 1pm and 2pm, then rain likely after 2pm.  Temperature falling to around 48 by 5pm. Breezy, with a southwest wind 15 to 23 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph.  Chance of precipitation is 100%.

    High: 67 °F

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32. Breezy, with a northwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight.

    Low: 32 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. Breezy.

    Low: 44 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 60. South wind 8 to 10 mph.
Tuesday
Increasing clouds, with a high near 80. South wind 7 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 54. Southwest wind 15 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.
Wednesday
Showers and possibly a thunderstorm before 1pm, then showers likely between 1pm and 2pm, then rain likely after 2pm. Temperature falling to around 48 by 5pm. Breezy, with a southwest wind 15 to 23 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 32. Breezy, with a northwest wind 15 to 20 mph decreasing to 7 to 12 mph after midnight.
Thursday
Sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 44. Breezy.
Friday
Mostly cloudy, with a high near 61.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Partly sunny, with a high near 66.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 49.
Sunday
Rain likely. Mostly cloudy, with a high near 60. Breezy. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Blustery. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
Grantfork IL
 38.82°N 89.65°W (Elev. 577 ft)
1:25 am CDT Mar 10, 2026
1am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
 
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Additional Resources

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Hourly Weather Forecast

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