Powell, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Powell, a city in Park County, Wyoming.
This Afternoon
80°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4pm, then showers and thunderstorms likely. Mostly cloudy. High near 80, with temperatures falling to around 72 in the afternoon. West southwest wind around 6 mph. Chance of precipitation is 70%.
7-day forecast for Powell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Chance Showers And Thunderstorms | 6 mph WSW | 66% |
| Tonight | 52°F | Showers And Thunderstorms | 8 to 14 mph NW | 79% |
| Saturday | 62°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 9 to 21 mph NNW | 70% |
| Saturday Night | 47°F | Showers And Thunderstorms Likely | 8 to 20 mph NNW | 70% |
| Sunday | 63°F | Chance Rain Showers | 7 mph NW | 45% |
| Sunday Night | 45°F | Mostly Cloudy | 0 to 7 mph W | 4% |
| Monday | 70°F | Mostly Sunny | 0 to 7 mph SE | 0% |
| Monday Night | 48°F | Mostly Clear | 3 mph S | 1% |
| Tuesday | 75°F | Sunny | 3 mph S | 0% |
| Tuesday Night | 50°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 mph S | 12% |
| Wednesday | 77°F | Sunny | 3 mph SSE | 6% |
| Wednesday Night | 50°F | Mostly Clear | 3 mph S | 3% |
| Thursday | 78°F | Sunny | 2 to 6 mph SSE | 3% |
| Thursday Night | 50°F | Partly Cloudy | 2 to 6 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov) for Powell (44.762, -108.758). Updated through the day.
Growing snapshot for Powell
Last spring frost
May 15
First fall frost
Sep 25
Growing season
132 days
Hardiness zone
5a
More local growing data for Powell: nearby ZIP 82440 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Heart Mtn, Wy (4.4 mi from Powell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.