Foster, MO Weather & Growing Conditions
Today
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 98. South wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Sunny | 3 to 7 mph S | 0% |
| Tonight | 74°F | Partly Cloudy | 5 mph SSE | 8% |
| Wednesday | 93°F | Slight Chance Showers And Thunderstorms | 3 to 8 mph S | 23% |
| Wednesday Night | 70°F | Chance Showers And Thunderstorms | 3 to 7 mph NE | 57% |
| Thursday | 90°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph NW | 57% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 3 mph SE | 49% |
| Friday | 91°F | Chance Showers And Thunderstorms | 2 to 6 mph SSW | 49% |
| Friday Night | 71°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph SSE | 15% |
| Saturday | 93°F | Sunny | 3 to 8 mph S | 13% |
| Saturday Night | 73°F | Mostly Clear | 8 mph S | 3% |
| Sunday | 95°F | Sunny | 9 to 13 mph SSW | 2% |
| Sunday Night | 75°F | Mostly Clear | 10 mph SSW | 0% |
| Monday | 95°F | Sunny | 10 to 14 mph SSW | 1% |
| Monday Night | 76°F | Mostly Clear | 12 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Foster, MO
Last spring frost
Apr 12
First fall frost
Oct 23
Growing season
192 days
Hardiness zone
6b
Explore more for Foster, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Butler 4W, Mo (9.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.