Harman US

Olean, MO Weather & Growing Conditions

Today
99°F
Sunny
Sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 101. Southwest wind 6 to 10 mph, with gusts as high as 22 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 99°F Sunny 6 to 10 mph SW 1%
Tonight 72°F Partly Cloudy 6 mph SW 4%
Sunday 90°F Slight Chance Showers And Thunderstorms 6 mph W 27%
Sunday Night 68°F Showers And Thunderstorms 3 mph N 83%
Monday 77°F Showers And Thunderstorms 2 to 6 mph NE 83%
Monday Night 60°F Chance Rain Showers then Mostly Cloudy 6 mph N 31%
Tuesday 71°F Partly Sunny 6 mph N 11%
Tuesday Night 53°F Partly Cloudy 2 to 6 mph NE 3%
Wednesday 74°F Sunny 3 mph NE 1%
Wednesday Night 55°F Partly Cloudy 2 mph NE 1%
Thursday 77°F Mostly Sunny 2 mph NE 3%
Thursday Night 59°F Partly Cloudy 2 mph NE 8%
Friday 77°F Slight Chance Rain Showers 3 mph E 19%
Friday Night 59°F Mostly Cloudy 3 mph E 12%

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.