Foster, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Foster, a town in Garvin County, Oklahoma.
This Afternoon
66°F
Mostly Sunny
Mostly sunny. High near 66, with temperatures falling to around 62 in the afternoon. Northwest wind 9 to 14 mph, with gusts as high as 21 mph.
7-day forecast for Foster
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Sunny | 9 to 14 mph NW | 1% |
| Tonight | 46°F | Mostly Clear | 1 to 7 mph NW | 0% |
| Wednesday | 68°F | Sunny | 2 mph W | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 2 mph SSE | 0% |
| Thursday | 68°F | Mostly Sunny then Slight Chance Rain Showers | 2 to 9 mph SW | 20% |
| Thursday Night | 44°F | Slight Chance Rain Showers then Mostly Clear | 2 to 8 mph N | 19% |
| Friday | 64°F | Sunny | 6 mph N | 0% |
| Friday Night | 41°F | Partly Cloudy | 0 to 3 mph NNE | 0% |
| Saturday | 64°F | Mostly Sunny | 2 mph N | 2% |
| Saturday Night | 42°F | Mostly Clear | 1 mph N | 4% |
| Sunday | 68°F | Sunny | 2 mph WNW | 1% |
| Sunday Night | 42°F | Clear | 1 mph NW | 1% |
| Monday | 70°F | Sunny | 0 to 6 mph SSW | 1% |
| Monday Night | 46°F | Mostly Clear | 3 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Foster (34.606, -97.490). Updated through the day.
Growing snapshot for Foster
Last spring frost
Apr 5
First fall frost
Nov 1
Growing season
210 days
Hardiness zone
7b
More local growing data for Foster: nearby ZIP 73433 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Pauls Valley 4 Wsw, Ok (9.8 mi from Foster). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.