Sweetwater, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sweetwater, a town in Roger Mills County, Oklahoma.
Overnight
71°F
Mostly Clear
Mostly clear, with a low around 71. South southeast wind around 10 mph.
7-day forecast for Sweetwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Mostly Clear | 10 mph SSE | 0% |
| Tuesday | 102°F | Mostly Sunny | 7 to 13 mph S | 1% |
| Tuesday Night | 72°F | Partly Cloudy | 6 to 13 mph S | 6% |
| Wednesday | 101°F | Sunny | 6 to 15 mph SSW | 3% |
| Wednesday Night | 73°F | Partly Cloudy | 6 to 15 mph S | 5% |
| Thursday | 100°F | Sunny | 5 to 14 mph SSW | 8% |
| Thursday Night | 72°F | Partly Cloudy | 7 to 14 mph SSE | 11% |
| Friday | 100°F | Sunny | 6 to 13 mph S | 9% |
| Friday Night | 71°F | Slight Chance Showers And Thunderstorms | 5 to 13 mph S | 16% |
| Saturday | 100°F | Sunny | 5 to 13 mph SSW | 8% |
| Saturday Night | 72°F | Clear | 7 to 13 mph S | 2% |
| Sunday | 100°F | Sunny | 7 to 15 mph SSW | 0% |
| Sunday Night | 72°F | Clear | 9 to 15 mph S | 0% |
| Monday | 100°F | Sunny | 8 to 17 mph S | 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 Aug 4, 2026.