Harman US

Okawville, IL Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Okawville, a village in Washington County, Illinois.

Today
61°F
Slight Chance Drizzle then Mostly Cloudy
A slight chance of drizzle before noon. Mostly cloudy, with a high near 61. West wind 6 to 13 mph.

7-day forecast for Okawville

WhenTempForecastWindPrecip
Today 61°F Slight Chance Drizzle then Mostly Cloudy 6 to 13 mph W 12%
Tonight 43°F Partly Cloudy 5 mph SW 0%
Thursday 66°F Sunny 5 to 10 mph W 0%
Thursday Night 45°F Partly Cloudy 3 mph NW 1%
Friday 58°F Partly Sunny 5 to 12 mph NW 1%
Friday Night 35°F Partly Cloudy 1 to 7 mph N 0%
Saturday 56°F Mostly Sunny 1 to 5 mph N 0%
Saturday Night 33°F Partly Cloudy 1 mph NW 0%
Sunday 61°F Sunny 0 to 6 mph NW 1%
Sunday Night 34°F Clear 1 mph NW 0%
Monday 65°F Sunny 0 to 5 mph SW 0%
Monday Night 39°F Clear 1 mph SW 1%
Tuesday 69°F Sunny 1 to 5 mph W 1%
Tuesday Night 41°F Mostly Clear 0 mph 2%

Forecast source: National Weather Service (api.weather.gov) for Okawville (38.434, -89.548). Updated through the day.

Growing snapshot for Okawville

Last spring frost
Apr 7
First fall frost
Oct 26
Growing season
201 days
Hardiness zone
6b

More local growing data for Okawville: nearby ZIP 62271 weather · frost dates · planting calendar · Illinois frost dates

Nearby towns & communities

All Illinois locations ›

Climate data from the nearest NOAA station, Nashville 1 E, Il (11.1 mi from Okawville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.