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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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.