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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

62°F

17°C

Humidity 93%
Wind Speed S 8 mph
Barometer 29.77 in (1008.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 27 Dec 8:53 pm CST
Extended Forecast for

Smithton IL

  • Tonight

    Tonight: Patchy fog before 4am. Otherwise, cloudy, with a low around 58. South wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Patchy Fog

  • Sunday

    Sunday: A chance of showers, then showers and possibly a thunderstorm after 3pm. Temperature rising to near 69 by noon, then falling to around 56 during the remainder of the day. Breezy, with a south wind 10 to 15 mph becoming west 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 80%.

    High: 69 °F⇓

    Slight Chance
    Showers then
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Blustery, with a northwest wind 23 to 28 mph, with gusts as high as 41 mph.

    Low: 19 °F

    Blustery.
    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 28. Breezy, with a northwest wind 17 to 23 mph, with gusts as high as 33 mph.

    High: 28 °F

    Mostly Sunny
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 17. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 34.

    High: 34 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog before 4am. Otherwise, cloudy, with a low around 58. South wind 8 to 10 mph, with gusts as high as 21 mph.
Sunday
A chance of showers, then showers and possibly a thunderstorm after 3pm. Temperature rising to near 69 by noon, then falling to around 56 during the remainder of the day. Breezy, with a south wind 10 to 15 mph becoming west 19 to 24 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 80%.
Sunday Night
A 30 percent chance of showers, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 19. Blustery, with a northwest wind 23 to 28 mph, with gusts as high as 41 mph.
Monday
Mostly sunny, with a high near 28. Breezy, with a northwest wind 17 to 23 mph, with gusts as high as 33 mph.
Monday Night
Mostly clear, with a low around 17. Northwest wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Mostly clear, with a low around 25.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 27.
New Year's Day
Mostly sunny, with a high near 40.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly cloudy, with a low around 29.
Saturday
Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Smithton IL
 38.41°N 89.99°W (Elev. 453 ft)
Last Update:
7:51 pm CST Dec 27, 2025
Forecast Valid:
9pm CST Dec 27, 2025-6pm CST Jan 3, 2026
 
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Additional Resources

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Chance of Precipitation