Fairfax, MO Weather & Growing Conditions
Tonight
71°F
Partly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Heat index values as high as 95. South wind 7 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 71°F | Partly Cloudy then Chance Showers And Thunderstorms | 7 to 12 mph S | 31% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 9 mph WSW | 48% |
| Saturday Night | 65°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 8 mph N | 59% |
| Sunday | 72°F | Chance Showers And Thunderstorms | 9 mph NNE | 53% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 53% |
| Monday | 64°F | Chance Rain Showers | 9 mph NNE | 36% |
| Monday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph NNE | 22% |
| Tuesday | 63°F | Mostly Cloudy | 8 mph NE | 7% |
| Tuesday Night | 51°F | Partly Cloudy | 2 to 6 mph ENE | 4% |
| Wednesday | 67°F | Partly Sunny | 5 mph E | 2% |
| Wednesday Night | 55°F | Mostly Cloudy | 2 mph ESE | 10% |
| Thursday | 68°F | Chance Rain Showers | 5 mph SE | 31% |
| Thursday Night | 58°F | Slight Chance Rain Showers | 2 mph ESE | 20% |
| Friday | 69°F | Slight Chance Rain Showers | 2 to 6 mph ESE | 21% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fairfax, MO
Last spring frost
Apr 19
First fall frost
Oct 15
Growing season
177 days
Hardiness zone
5b
Explore more for Fairfax, MO: full frost dates · planting calendar · Missouri frost dates
Climate data from the nearest NOAA station, Tarkio, Mo (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.