Harman US

Helena, OK Weather & Growing Conditions

Tonight
43°F
Clear
Clear, with a low around 43. West northwest wind around 7 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 43°F Clear 7 mph WNW 0%
Wednesday 66°F Sunny 2 to 7 mph W 0%
Wednesday Night 46°F Partly Cloudy then Slight Chance Rain Showers 5 mph SE 15%
Thursday 59°F Rain Showers 6 to 10 mph N 82%
Thursday Night 39°F Mostly Clear 5 mph NNW 1%
Friday 61°F Sunny 5 mph N 0%
Friday Night 39°F Partly Cloudy 2 mph NNE 2%
Saturday 64°F Mostly Sunny 3 mph WSW 3%
Saturday Night 41°F Mostly Clear 3 mph SW 2%
Sunday 67°F Sunny 5 mph WSW 1%
Sunday Night 42°F Clear 3 to 7 mph S 1%
Monday 71°F Sunny 9 mph SSW 0%
Monday Night 46°F Mostly Clear 8 mph SSW 1%
Tuesday 71°F Sunny 8 mph S 2%

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

Growing snapshot for Helena, OK

Last spring frost
Apr 9
First fall frost
Oct 31
Growing season
205 days
Hardiness zone
7a

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

Climate data from the nearest NOAA station, Helena 1 Sse, Ok (1.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.