Powell, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Powell, a city in Park County, Wyoming.
Today
75°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 75. Northeast wind 2 to 6 mph.
7-day forecast for Powell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Areas Of Smoke | 2 to 6 mph NE | 0% |
| Tonight | 49°F | Smoke | 2 to 7 mph NW | 3% |
| Wednesday | 82°F | Sunny | 1 to 6 mph ESE | 0% |
| Wednesday Night | 53°F | Mostly Clear | 2 to 6 mph N | 0% |
| Thursday | 91°F | Sunny | 1 to 7 mph E | 0% |
| Thursday Night | 57°F | Mostly Clear | 3 to 7 mph NW | 0% |
| Friday | 95°F | Sunny | 1 to 7 mph SE | 0% |
| Friday Night | 61°F | Mostly Clear | 8 mph NW | 0% |
| Saturday | 94°F | Sunny | 7 mph N | 0% |
| Saturday Night | 61°F | Mostly Clear | 6 mph N | 0% |
| Sunday | 93°F | Sunny | 7 mph NNW | 2% |
| Sunday Night | 60°F | Partly Cloudy | 9 mph NNW | 5% |
| Monday | 92°F | Sunny | 8 mph NNW | 2% |
| Monday Night | 59°F | Partly Cloudy | 6 to 9 mph NNW | 4% |
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 Aug 4, 2026.