Rosston, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rosston, a town in Harper County, Oklahoma.
Tonight
40°F
Clear
Clear, with a low around 40. West northwest wind around 6 mph.
7-day forecast for Rosston
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 40°F | Clear | 6 mph WNW | 0% |
| Wednesday | 64°F | Sunny | 6 mph SW | 1% |
| Wednesday Night | 45°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 to 8 mph ESE | 47% |
| Thursday | 56°F | Rain Showers Likely then Mostly Sunny | 7 to 13 mph N | 58% |
| Thursday Night | 37°F | Mostly Clear | 5 mph NW | 0% |
| Friday | 59°F | Sunny | 3 mph NNE | 0% |
| Friday Night | 39°F | Partly Cloudy | 2 mph SSE | 1% |
| Saturday | 63°F | Mostly Sunny | 5 mph WNW | 2% |
| Saturday Night | 40°F | Clear | 5 mph WSW | 1% |
| Sunday | 66°F | Sunny | 5 mph WSW | 1% |
| Sunday Night | 43°F | Clear | 3 to 7 mph SSW | 0% |
| Monday | 70°F | Sunny | 9 mph SSW | 0% |
| Monday Night | 45°F | Mostly Clear | 6 mph SW | 1% |
| Tuesday | 68°F | Mostly Sunny | 7 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Rosston (36.813, -99.933). Updated through the day.
Growing snapshot for Rosston
Last spring frost
Apr 13
First fall frost
Oct 28
Growing season
196 days
Hardiness zone
7a
More local growing data for Rosston: nearby ZIP 73855 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gate, Ok (11.4 mi from Rosston). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.