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

Washington Regional Airport (KFYG)

Lat: 38.59°NLon: 90.99°WElev: 489ft.

Fair

37°F

3°C

Humidity 93%
Wind Speed Calm
Barometer 30.25 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 6 Nov 12:55 am CST
Extended Forecast for

Marthasville MO

  • Overnight

    Overnight: Clear, with a low around 35. Light northeast wind.

    Low: 35 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 67. Light east wind becoming southeast 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: A slight chance of rain between 2am and 3am. Mostly cloudy, with a low around 54. Southeast wind 7 to 9 mph becoming southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Mostly cloudy through mid morning, then gradual clearing, with a high near 71. West wind 6 to 10 mph.

    High: 71 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. Light west wind.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 41.

    High: 41 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 20.

    Low: 20 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 35. Light northeast wind.
Thursday
Sunny, with a high near 67. Light east wind becoming southeast 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Thursday Night
A slight chance of rain between 2am and 3am. Mostly cloudy, with a low around 54. Southeast wind 7 to 9 mph becoming southwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Friday
Mostly cloudy through mid morning, then gradual clearing, with a high near 71. West wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 42. Light west wind.
Saturday
A 20 percent chance of rain after noon. Partly sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Sunny, with a high near 41.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 43.
Monday Night
Mostly clear, with a low around 25.
Veterans Day
Mostly sunny, with a high near 60.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marthasville MO
 38.64°N 91.05°W (Elev. 561 ft)
Last Update:
1:06 am CST Nov 6, 2025
Forecast Valid:
1am CST Nov 6, 2025-6pm CST Nov 12, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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