Harman US

Chelsea, OK Weather & Growing Conditions

This Afternoon
97°F
Sunny
Sunny, with a high near 97. Heat index values as high as 101. South wind 10 to 15 mph, with gusts as high as 20 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 97°F Sunny 10 to 15 mph S 0%
Tonight 72°F Partly Cloudy then Slight Chance Showers And Thunderstorms 5 to 10 mph S 20%
Sunday 89°F Chance Showers And Thunderstorms 5 to 10 mph S 48%
Sunday Night 65°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 0 to 5 mph N 68%
Monday 82°F Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms 0 to 10 mph N 68%
Monday Night 59°F Partly Cloudy 5 to 10 mph N 7%
Tuesday 77°F Partly Sunny 10 mph NE 6%
Tuesday Night 55°F Mostly Clear 5 to 10 mph NE 3%
Wednesday 79°F Mostly Sunny 5 to 10 mph NE 3%
Wednesday Night 57°F Partly Cloudy 5 mph NE 3%
Thursday 81°F Mostly Sunny 5 mph E 9%
Thursday Night 61°F Partly Cloudy 5 mph E 11%
Friday 82°F Slight Chance Rain Showers 5 mph E 17%
Friday Night 62°F Partly Cloudy 5 mph E 11%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Chelsea, OK

Last spring frost
Apr 4
First fall frost
Nov 1
Growing season
210 days
Hardiness zone
7a

Explore more for Chelsea, OK: full frost dates · planting calendar · Oklahoma frost dates

Climate data from the nearest NOAA station, Nowata, Ok (14.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.