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.

Overcast

46°F

8°C

Humidity 87%
Wind Speed W 13 G 18 mph
Barometer 30.04 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 7 Mar 3:55 pm CST
Extended Forecast for

3 Miles NW Marthasville MO

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Northwest wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 44. South wind 3 to 5 mph.

    Low: 44 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 78. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: A slight chance of showers between midnight and 3am, then a slight chance of showers and thunderstorms after 3am. Mostly clear, with a low around 58. South wind around 6 mph. Chance of precipitation is 20%.

    Low: 58 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 81. Chance of precipitation is 60%.

    High: 81 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.

    Low: 47 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before noon, then a chance of showers. High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Showers then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 31.

    Low: 31 °F

    Slight Chance
    Showers then
    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 33. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 67. Calm wind becoming southwest 5 to 8 mph in the morning.
Sunday Night
Clear, with a low around 44. South wind 3 to 5 mph.
Monday
Sunny, with a high near 78. Southwest wind 5 to 14 mph, with gusts as high as 23 mph.
Monday Night
A slight chance of showers between midnight and 3am, then a slight chance of showers and thunderstorms after 3am. Mostly clear, with a low around 58. South wind around 6 mph. Chance of precipitation is 20%.
Tuesday
A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 81. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm before noon, then a chance of showers. High near 63. Chance of precipitation is 90%.
Wednesday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 31.
Thursday
Sunny, with a high near 54.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 67.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly cloudy, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Marthasville MO
 38.64°N 91.11°W (Elev. 574 ft)
Last Update:
2:11 pm CST Mar 7, 2026
Forecast Valid:
4pm CST Mar 7, 2026-6pm CDT Mar 14, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation