Harman US

Johnson, OK Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Johnson, a town in Pottawatomie County, Oklahoma.

Tonight
74°F
Mostly Clear
Mostly clear, with a low around 74. South wind around 8 mph.

7-day forecast for Johnson

WhenTempForecastWindPrecip
Tonight 74°F Mostly Clear 8 mph S 0%
Saturday 99°F Sunny 8 to 13 mph SSW 1%
Saturday Night 75°F Partly Cloudy then Slight Chance Rain Showers 12 mph S 15%
Sunday 95°F Chance Showers And Thunderstorms 10 mph S 65%
Sunday Night 67°F Showers And Thunderstorms 3 to 8 mph ESE 75%
Monday 86°F Slight Chance Showers And Thunderstorms 5 to 9 mph NNE 54%
Monday Night 63°F Partly Cloudy 8 mph NNE 11%
Tuesday 83°F Mostly Sunny 9 mph NNE 13%
Tuesday Night 60°F Partly Cloudy 8 mph NE 4%
Wednesday 84°F Mostly Sunny 7 mph ENE 11%
Wednesday Night 62°F Partly Cloudy 6 mph ENE 7%
Thursday 85°F Mostly Sunny 6 mph ENE 13%
Thursday Night 64°F Partly Cloudy 6 mph ENE 9%
Friday 86°F Partly Sunny 3 to 7 mph SE 13%

Forecast source: National Weather Service (api.weather.gov) for Johnson (35.414, -96.849). Updated through the day.

Growing snapshot for Johnson

Last spring frost
Mar 30
First fall frost
Nov 5
Growing season
221 days
Hardiness zone
7b

More local growing data for Johnson: nearby ZIP 74804 weather · frost dates · planting calendar · Oklahoma frost dates

Nearby towns & communities

All Oklahoma locations ›

Climate data from the nearest NOAA station, Shawnee 3Nnw Mesonet, Ok (2.4 mi from Johnson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.