Afton, WY Weather & Growing Conditions
Today
55°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 55, with temperatures falling to around 52 in the afternoon. West northwest wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 55°F | Chance Showers And Thunderstorms | 8 mph WNW | 49% |
| Tonight | 32°F | Slight Chance Showers And Thunderstorms then Areas Of Fog | 2 to 8 mph NNW | 45% |
| Sunday | 60°F | Areas Of Fog then Mostly Sunny | 2 to 9 mph NW | 2% |
| Sunday Night | 33°F | Mostly Clear | 5 to 8 mph NE | 0% |
| Monday | 66°F | Sunny | 7 mph SW | 0% |
| Monday Night | 37°F | Partly Cloudy | 6 to 9 mph S | 0% |
| Tuesday | 68°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 8 mph SSW | 15% |
| Tuesday Night | 39°F | Chance Showers And Thunderstorms | 7 mph S | 42% |
| Wednesday | 66°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 8 mph SW | 25% |
| Wednesday Night | 39°F | Mostly Clear | 8 mph S | 4% |
| Thursday | 71°F | Sunny | 8 mph S | 3% |
| Thursday Night | 40°F | Partly Cloudy | 7 to 12 mph SE | 2% |
| Friday | 70°F | Sunny | 10 mph S | 6% |
| Friday Night | 41°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 10 mph S | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Afton, WY
Last spring frost
Jun 20
First fall frost
Sep 1
Growing season
71 days
Hardiness zone
5b
Explore more for Afton, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Afton, Wy (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.