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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.

Today
61°F
Patchy Fog then Chance Showers And Thunderstorms
Patchy fog and a slight chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Partly sunny. High near 61, with temperatures falling to around 58 in the afternoon. Northwest wind 0 to 3 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Afton

WhenTempForecastWindPrecip
Today 61°F Patchy Fog then Chance Showers And Thunderstorms 0 to 3 mph NW 50%
Tonight 31°F Chance Showers And Thunderstorms then Patchy Fog 0 to 3 mph N 31%
Sunday 64°F Mostly Sunny 0 to 5 mph NW 1%
Sunday Night 32°F Mostly Clear 0 to 5 mph NE 1%
Monday 72°F Sunny 2 mph WNW 0%
Monday Night 38°F Partly Cloudy 2 mph SSW 1%
Tuesday 73°F Mostly Sunny then Slight Chance Showers And Thunderstorms 0 to 3 mph WSW 13%
Tuesday Night 40°F Chance Showers And Thunderstorms 3 mph SE 42%
Wednesday 72°F Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 1 mph NW 18%
Wednesday Night 38°F Partly Cloudy 3 mph S 6%
Thursday 75°F Sunny 1 mph SSE 4%
Thursday Night 40°F Partly Cloudy 2 to 6 mph SSE 1%
Friday 75°F Mostly Sunny 3 mph S 4%
Friday Night 42°F Slight Chance Showers And Thunderstorms then Partly Cloudy 6 mph S 13%

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.