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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

WhenTempForecastWindPrecip
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

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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.