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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.