Harman US

Chester, OK Weather & Growing Conditions

Overnight
75°F
Mostly Clear
Mostly clear, with a low around 75. South wind around 13 mph, with gusts as high as 20 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 75°F Mostly Clear 13 mph S 0%
Saturday 99°F Sunny then Slight Chance Showers And Thunderstorms 13 to 16 mph SSW 18%
Saturday Night 73°F Chance Showers And Thunderstorms 12 to 15 mph SSW 42%
Sunday 91°F Chance Rain Showers 10 mph NE 40%
Sunday Night 63°F Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 8 to 12 mph NNE 40%
Monday 82°F Mostly Sunny 8 to 12 mph NNE 13%
Monday Night 60°F Partly Cloudy 7 to 12 mph NE 13%
Tuesday 78°F Partly Sunny 9 mph ENE 13%
Tuesday Night 57°F Partly Cloudy 6 to 10 mph E 5%
Wednesday 81°F Partly Sunny 5 to 8 mph E 12%
Wednesday Night 61°F Partly Cloudy then Chance Showers And Thunderstorms 6 to 9 mph ESE 32%
Thursday 85°F Chance Showers And Thunderstorms 5 to 9 mph SSE 35%
Thursday Night 64°F Chance Showers And Thunderstorms 6 to 9 mph SE 34%
Friday 86°F Chance Rain Showers 5 to 9 mph SSE 34%

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 Sep 19, 2026.