Fairmont, OK Weather & Growing Conditions
Overnight
74°F
Mostly Clear
Mostly clear, with a low around 74. South wind around 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 74°F | Mostly Clear | 12 mph S | 0% |
| Saturday | 100°F | Sunny | 13 to 17 mph SSW | 11% |
| Saturday Night | 72°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 to 15 mph S | 46% |
| Sunday | 92°F | Showers And Thunderstorms Likely | 10 mph SSE | 66% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 9 mph NNE | 60% |
| Monday | 82°F | Slight Chance Rain Showers then Mostly Sunny | 12 mph NNE | 18% |
| Monday Night | 58°F | Partly Cloudy | 8 to 12 mph NE | 8% |
| Tuesday | 78°F | Mostly Sunny | 8 to 12 mph NE | 8% |
| Tuesday Night | 55°F | Partly Cloudy | 7 to 12 mph ENE | 4% |
| Wednesday | 80°F | Mostly Sunny | 8 mph E | 7% |
| Wednesday Night | 58°F | Partly Cloudy | 8 mph E | 13% |
| Thursday | 82°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 8 mph SE | 32% |
| Thursday Night | 62°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph ESE | 22% |
| Friday | 84°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph SE | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fairmont, OK
Last spring frost
Apr 10
First fall frost
Oct 29
Growing season
202 days
Hardiness zone
7a
Explore more for Fairmont, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Breckinridge 3Se Mesnt, Ok (4.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.