Foster, MO Weather & Growing Conditions
Overnight
75°F
Clear
Clear, with a low around 75. South southwest wind around 8 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 75°F | Clear | 8 mph SSW | 0% |
| Saturday | 97°F | Sunny | 8 to 14 mph SSW | 0% |
| Saturday Night | 70°F | Chance Showers And Thunderstorms | 2 to 10 mph W | 58% |
| Sunday | 87°F | Chance Showers And Thunderstorms | 5 mph N | 50% |
| Sunday Night | 64°F | Showers And Thunderstorms | 6 mph NNE | 78% |
| Monday | 75°F | Showers And Thunderstorms | 5 to 9 mph N | 78% |
| Monday Night | 56°F | Mostly Cloudy | 6 to 9 mph NNE | 9% |
| Tuesday | 72°F | Partly Sunny | 9 mph NNE | 2% |
| Tuesday Night | 52°F | Partly Cloudy | 3 to 8 mph NE | 1% |
| Wednesday | 74°F | Mostly Sunny | 6 mph NE | 3% |
| Wednesday Night | 53°F | Partly Cloudy | 5 mph ENE | 3% |
| Thursday | 78°F | Mostly Sunny | 5 mph E | 13% |
| Thursday Night | 58°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph E | 16% |
| Friday | 79°F | Slight Chance Rain Showers | 6 mph E | 22% |
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 Sep 19, 2026.