Marthasville, MO Weather Forecast
Local 7-day forecast
Patchy Fog then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Marthasville, MO in one place.
Patchy fog before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Wind around 0 mph. Chance of precipitation is 50%.
Local Weather Overview
This forecast page for Marthasville, MO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 14, 2026 10:06 PM CDT.
The active forecast window currently covers Jul 16 to Jul 21, 2026 for Marthasville, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 16 to Jul 21, 2026
- Latest sync
- Jul 14, 2026 10:06 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Marthasville
Monday looks like the warmest upcoming period in Marthasville at 94 degrees F.
Thursday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Saturday at about 3 to 7 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 14, 2026 10:06 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 70. Wind around 0 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 72. Chance of precipitation is 40%.
Sunny, with a high near 92.
Mostly clear, with a low around 73.
Sunny, with a high near 93.
Mostly clear, with a low around 73.
Sunny, with a high near 94.
Mostly clear, with a low around 73.
Sunny, with a high near 92.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 16
|
Patchy Fog then Chance Showers And Thunderstorms
|
90°F |
0 mph
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
70°F |
0 mph
|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms
|
90°F |
0 to 5 mph
NW
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
2 mph
W
|
|
Saturday
Jul 18
|
Sunny
|
92°F |
3 to 7 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
73°F |
5 mph
W
|
|
Sunday
Jul 19
|
Sunny
|
93°F |
5 mph
W
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
73°F |
2 mph
SW
|
|
Monday
Jul 20
|
Sunny
|
94°F |
3 to 7 mph
SW
|
|
Monday Night
Jul 20
|
Mostly Clear
|
73°F |
1 to 5 mph
W
|
|
Tuesday
Jul 21
|
Sunny
|
92°F |
2 to 6 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Marthasville.