Fairfax, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fairfax, a city in Atchison County, Missouri.
Today
87°F
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
7-day forecast for Fairfax
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Tonight | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 8 mph N | 73% |
| Sunday | 71°F | Chance Showers And Thunderstorms | 7 to 10 mph NNE | 40% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 38% |
| Monday | 63°F | Chance Rain Showers | 9 mph NE | 36% |
| Monday Night | 54°F | Slight Chance Rain Showers then Mostly Cloudy | 5 to 9 mph NE | 16% |
| Tuesday | 63°F | Mostly Cloudy | 8 mph NE | 3% |
| Tuesday Night | 49°F | Partly Cloudy | 2 to 6 mph ENE | 0% |
| Wednesday | 66°F | Mostly Sunny | 5 mph E | 2% |
| Wednesday Night | 54°F | Partly Cloudy | 3 mph ESE | 12% |
| Thursday | 68°F | Chance Rain Showers | 5 mph ESE | 29% |
| Thursday Night | 59°F | Chance Rain Showers | 3 mph ESE | 29% |
| Friday | 69°F | Chance Rain Showers | 6 mph ESE | 29% |
| Friday Night | 59°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph ESE | 16% |
Forecast source: National Weather Service (api.weather.gov) for Fairfax (40.340, -95.392). Updated through the day.
Growing snapshot for Fairfax
Last spring frost
Apr 19
First fall frost
Oct 15
Growing season
177 days
Hardiness zone
5b
More local growing data for Fairfax: nearby ZIP 64446 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Tarkio, Mo (7.7 mi from Fairfax). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.