Harman US

Olean, MO Weather & Growing Conditions

Overnight
74°F
Mostly Clear
Mostly clear, with a low around 74. South wind around 3 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 74°F Mostly Clear 3 mph S 4%
Saturday 99°F Mostly Sunny 3 to 7 mph SW 1%
Saturday Night 72°F Partly Cloudy 3 mph SW 10%
Sunday 90°F Chance Rain Showers then Slight Chance Showers And Thunderstorms 3 mph W 31%
Sunday Night 68°F Showers And Thunderstorms 3 mph NE 80%
Monday 78°F Showers And Thunderstorms 2 to 6 mph N 80%
Monday Night 61°F Chance Showers And Thunderstorms 6 mph N 32%
Tuesday 72°F Partly Sunny 6 mph N 13%
Tuesday Night 55°F Mostly Cloudy 5 mph NE 3%
Wednesday 75°F Mostly Sunny 3 mph NE 2%
Wednesday Night 55°F Partly Cloudy 2 mph NE 2%
Thursday 76°F Mostly Sunny 2 mph NE 5%
Thursday Night 59°F Partly Cloudy 2 mph NE 4%
Friday 76°F Mostly Sunny 3 mph NE 8%

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

Growing snapshot for Olean, MO

Last spring frost
Apr 7
First fall frost
Nov 1
Growing season
208 days
Hardiness zone
6b

Explore more for Olean, MO: full frost dates · planting calendar · Missouri frost dates

Climate data from the nearest NOAA station, Eldon, Mo (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.