Sweetwater, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sweetwater, a town in Roger Mills County, Oklahoma.
This Afternoon
63°F
Mostly Sunny
Mostly sunny, with a high near 63. North northwest wind 16 to 22 mph, with gusts as high as 32 mph.
7-day forecast for Sweetwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Mostly Sunny | 16 to 22 mph NNW | 0% |
| Tonight | 42°F | Mostly Clear | 2 to 12 mph NW | 0% |
| Wednesday | 67°F | Sunny | 2 to 10 mph SW | 0% |
| Wednesday Night | 47°F | Clear | 6 mph SSE | 4% |
| Thursday | 60°F | Chance Rain Showers | 3 to 17 mph N | 36% |
| Thursday Night | 40°F | Mostly Clear | 6 mph NNW | 0% |
| Friday | 63°F | Sunny | 5 mph NNE | 0% |
| Friday Night | 40°F | Partly Cloudy | 2 mph NE | 0% |
| Saturday | 64°F | Mostly Sunny | 0 to 5 mph W | 2% |
| Saturday Night | 42°F | Mostly Clear | 3 mph WSW | 1% |
| Sunday | 67°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 42°F | Clear | 3 mph SSW | 1% |
| Monday | 70°F | Sunny | 3 to 10 mph SSW | 0% |
| Monday Night | 46°F | Mostly Clear | 7 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Sweetwater (35.415, -99.920). Updated through the day.
Growing snapshot for Sweetwater
Last spring frost
Apr 11
First fall frost
Oct 26
Growing season
197 days
Hardiness zone
7b
More local growing data for Sweetwater: nearby ZIP 73666 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Erick, Ok (14.1 mi from Sweetwater). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.