Foster, MO Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Foster, MO in one place.
Sunny, with a high near 99. Heat index values as high as 105. South southwest wind 10 to 15 mph, with gusts as high as 26 mph.
Local Weather Overview
This forecast page for Foster, 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: Aug 10, 2026 3:07 PM CDT.
The active forecast window currently covers Aug 11 to Aug 16, 2026 for Foster, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 11 to Aug 16, 2026
- Latest sync
- Aug 10, 2026 3:07 PM CDT
- Forecast office
- EAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Foster
Wednesday looks like the warmest upcoming period in Foster at 100 degrees F.
Sunday Night is the coolest period ahead with temperatures near 73 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph SSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 10, 2026 3:07 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- EAX
- Radar station
- KEAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 81. Heat index values as high as 103. South southwest wind 8 to 12 mph, with gusts as high as 22 mph.
Mostly sunny, with a high near 100. South southwest wind around 13 mph, with gusts as high as 23 mph.
Partly cloudy, with a low around 80.
Mostly sunny, with a high near 98.
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 78.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 96.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 95.
Partly cloudy, with a low around 75.
Mostly sunny, with a high near 94.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Aug 11
|
Sunny
|
99°F |
10 to 15 mph
SSW
|
|
Tuesday Night
Aug 11
|
Mostly Clear
|
81°F |
8 to 12 mph
SSW
|
|
Wednesday
Aug 12
|
Mostly Sunny
|
100°F |
13 mph
SSW
|
|
Wednesday Night
Aug 12
|
Partly Cloudy
|
80°F |
9 mph
SSW
|
|
Thursday
Aug 13
|
Mostly Sunny
|
98°F |
8 to 13 mph
SSW
|
|
Thursday Night
Aug 13
|
Slight Chance Showers And Thunderstorms
|
78°F |
13 mph
S
|
|
Friday
Aug 14
|
Slight Chance Showers And Thunderstorms
|
96°F |
12 mph
SSW
|
|
Friday Night
Aug 14
|
Slight Chance Showers And Thunderstorms
|
77°F |
9 mph
S
|
|
Saturday
Aug 15
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
95°F |
10 mph
SW
|
|
Saturday Night
Aug 15
|
Partly Cloudy
|
75°F |
5 to 8 mph
SSW
|
|
Sunday
Aug 16
|
Mostly Sunny
|
94°F |
7 mph
W
|
|
Sunday Night
Aug 16
|
Partly Cloudy then Chance Showers And Thunderstorms
|
73°F |
6 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Foster.