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Afton, WY Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Afton, a town in Lincoln County, Wyoming.

This Afternoon
61°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 61, with temperatures falling to around 58 in the afternoon. North northwest wind 0 to 3 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Afton

WhenTempForecastWindPrecip
This Afternoon 61°F Chance Showers And Thunderstorms 0 to 3 mph NNW 40%
Tonight 32°F Slight Chance Showers And Thunderstorms then Areas Of Fog 0 to 5 mph NE 37%
Sunday 65°F Areas Of Fog then Mostly Sunny 0 to 5 mph NNW 2%
Sunday Night 33°F Mostly Clear 0 to 5 mph ENE 0%
Monday 72°F Sunny 2 mph WNW 0%
Monday Night 37°F Partly Cloudy 3 mph SE 0%
Tuesday 73°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 3 mph SSW 14%
Tuesday Night 41°F Chance Showers And Thunderstorms 3 mph SSE 39%
Wednesday 71°F Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 2 mph NW 24%
Wednesday Night 39°F Mostly Clear 3 mph S 3%
Thursday 76°F Sunny 2 mph S 3%
Thursday Night 41°F Partly Cloudy 6 mph SE 2%
Friday 75°F Mostly Sunny 5 mph S 5%
Friday Night 42°F Partly Cloudy 6 mph S 12%

Forecast source: National Weather Service (api.weather.gov) for Afton (42.726, -110.932). Updated through the day.

Growing snapshot for Afton

Last spring frost
Jun 20
First fall frost
Sep 1
Growing season
71 days
Hardiness zone
5b

More local growing data for Afton: nearby ZIP 83110 weather · frost dates · planting calendar · Wyoming frost dates

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Climate data from the nearest NOAA station, Afton, Wy (3.7 mi from Afton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.