Foss, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Foss, a town in Washita County, Oklahoma.
Overnight
73°F
Mostly Clear
Mostly clear, with a low around 73. South southeast wind around 14 mph, with gusts as high as 21 mph.
7-day forecast for Foss
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Mostly Clear | 14 mph SSE | 0% |
| Tuesday | 104°F | Sunny | 12 mph S | 1% |
| Tuesday Night | 76°F | Mostly Clear | 8 to 12 mph S | 3% |
| Wednesday | 103°F | Sunny | 9 to 15 mph SSW | 6% |
| Wednesday Night | 75°F | Partly Cloudy | 9 to 14 mph S | 5% |
| Thursday | 101°F | Sunny | 8 to 14 mph SSW | 14% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms | 9 to 14 mph SSE | 20% |
| Friday | 100°F | Slight Chance Showers And Thunderstorms then Sunny | 8 to 12 mph S | 20% |
| Friday Night | 72°F | Mostly Clear | 8 to 13 mph S | 13% |
| Saturday | 101°F | Sunny | 7 to 12 mph SSW | 8% |
| Saturday Night | 73°F | Clear | 13 mph S | 2% |
| Sunday | 101°F | Sunny | 10 to 15 mph S | 1% |
| Sunday Night | 74°F | Clear | 15 mph S | 0% |
| Monday | 101°F | Sunny | 14 to 17 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Foss (35.450, -99.171). Updated through the day.
Growing snapshot for Foss
Last spring frost
Apr 3
First fall frost
Nov 1
Growing season
210 days
Hardiness zone
7b
More local growing data for Foss: nearby ZIP 73647 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Bessie 4Wnw Mesonet, Ok (5.7 mi from Foss). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.