Chester, OK Weather & Growing Conditions
Today
103°F
Mostly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 103. Heat index values as high as 101. South wind around 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 103°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 12 mph S | 12% |
| Tonight | 75°F | Slight Chance Showers And Thunderstorms | 12 mph SSW | 12% |
| Wednesday | 101°F | Slight Chance Showers And Thunderstorms | 9 to 13 mph SW | 12% |
| Wednesday Night | 72°F | Slight Chance Showers And Thunderstorms | 8 to 13 mph ESE | 12% |
| Thursday | 99°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 to 12 mph SE | 17% |
| Thursday Night | 74°F | Chance Showers And Thunderstorms | 12 mph SE | 37% |
| Friday | 99°F | Chance Showers And Thunderstorms | 12 mph S | 33% |
| Friday Night | 73°F | Mostly Clear | 12 mph S | 14% |
| Saturday | 100°F | Sunny | 12 mph SSW | 8% |
| Saturday Night | 75°F | Clear | 14 mph S | 1% |
| Sunday | 101°F | Sunny | 15 mph SSW | 1% |
| Sunday Night | 75°F | Clear | 15 mph S | 0% |
| Monday | 101°F | Sunny | 17 mph SSW | 0% |
| Monday Night | 76°F | Mostly Clear | 16 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chester, OK
Last spring frost
Apr 11
First fall frost
Oct 25
Growing season
194 days
Hardiness zone
7a
Explore more for Chester, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Seiling 7Wnw Mesonet, Ok (9.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.