Sweetwater, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sweetwater, a town in Roger Mills County, Oklahoma.
Overnight
72°F
Mostly Clear
Mostly clear, with a low around 72. South wind around 8 mph.
7-day forecast for Sweetwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Mostly Clear | 8 mph S | 1% |
| Saturday | 99°F | Sunny then Slight Chance Showers And Thunderstorms | 7 to 15 mph SSW | 22% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 7 to 14 mph S | 30% |
| Sunday | 94°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph N | 16% |
| Sunday Night | 63°F | Slight Chance Showers And Thunderstorms | 9 mph NNE | 23% |
| Monday | 84°F | Slight Chance Rain Showers | 12 mph NE | 15% |
| Monday Night | 60°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph ENE | 22% |
| Tuesday | 81°F | Slight Chance Showers And Thunderstorms | 6 to 9 mph ENE | 20% |
| Tuesday Night | 58°F | Mostly Cloudy | 5 to 8 mph E | 11% |
| Wednesday | 82°F | Chance Rain Showers | 3 to 8 mph ESE | 28% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 3 to 7 mph ESE | 32% |
| Thursday | 85°F | Chance Showers And Thunderstorms | 3 to 8 mph SSE | 35% |
| Thursday Night | 64°F | Chance Showers And Thunderstorms | 3 to 7 mph SSE | 33% |
| Friday | 87°F | Chance Rain Showers | 3 to 9 mph S | 33% |
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 Sep 19, 2026.