Harman US

Tarkio, MO Weather & Growing Conditions

This Afternoon
90°F
Mostly Sunny
Mostly sunny, with a high near 90. Heat index values as high as 98. South wind around 13 mph, with gusts as high as 21 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 90°F Mostly Sunny 13 mph S 2%
Tonight 71°F Partly Cloudy then Chance Showers And Thunderstorms 7 to 12 mph S 34%
Saturday 85°F Chance Showers And Thunderstorms 6 to 9 mph SW 46%
Saturday Night 65°F Chance Showers And Thunderstorms then Showers And Thunderstorms Likely 7 mph N 57%
Sunday 71°F Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms 9 mph NNE 50%
Sunday Night 61°F Chance Showers And Thunderstorms 6 to 9 mph NE 50%
Monday 64°F Chance Rain Showers 9 mph NE 38%
Monday Night 55°F Chance Rain Showers then Mostly Cloudy 5 to 9 mph NNE 33%
Tuesday 63°F Mostly Cloudy 8 mph NE 7%
Tuesday Night 51°F Mostly Cloudy 2 to 6 mph ENE 3%
Wednesday 67°F Mostly Sunny 5 mph E 2%
Wednesday Night 55°F Mostly Cloudy 2 mph ESE 11%
Thursday 68°F Chance Rain Showers 5 mph SE 31%
Thursday Night 57°F Slight Chance Rain Showers 2 mph ESE 20%

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

Growing snapshot for Tarkio, MO

Last spring frost
Apr 19
First fall frost
Oct 15
Growing season
177 days
Hardiness zone
5b

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

Climate data from the nearest NOAA station, Tarkio, Mo (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.