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 100%
Wind Speed Calm
Barometer 30.07 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 8 Mar 2:55 am CDT
Extended Forecast for

3 Miles NW Marthasville MO

  • Overnight

    Overnight: Mostly clear, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Calm wind becoming southwest 5 to 9 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. Light south wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 23 mph.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. Southwest wind around 6 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Rain likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm. Low around 51. Chance of precipitation is 100%.

    Low: 51 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm before 1pm, then a chance of rain. High near 65. Chance of precipitation is 100%.

    High: 65 °F

    Rain

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before 1am. Mostly clear, with a low around 29.

    Low: 29 °F

    Slight Chance
    Rain

Detailed Forecast

Overnight
Mostly clear, with a low around 33. Calm wind.
Sunday
Sunny, with a high near 67. Calm wind becoming southwest 5 to 9 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. Light south wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 23 mph.
Monday Night
Mostly clear, with a low around 59. Southwest wind around 6 mph.
Tuesday
Rain likely, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 51. Chance of precipitation is 100%.
Wednesday
Rain and possibly a thunderstorm before 1pm, then a chance of rain. High near 65. Chance of precipitation is 100%.
Wednesday Night
A 20 percent chance of rain before 1am. Mostly clear, with a low around 29.
Thursday
Sunny, with a high near 54.
Thursday Night
Mostly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 67.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 56.
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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:
12:26 am CST Mar 8, 2026
Forecast Valid:
3am CDT Mar 8, 2026-6pm CDT Mar 14, 2026
 
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