Cowley, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cowley, a town in Big Horn County, Wyoming.
Today
53°F
Sunny
Sunny. High near 53, with temperatures falling to around 49 in the afternoon. West southwest wind around 3 mph.
7-day forecast for Cowley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 53°F | Sunny | 3 mph WSW | 0% |
| Tonight | 29°F | Partly Cloudy | 3 mph NNW | 0% |
| Thursday | 53°F | Mostly Sunny | 1 to 5 mph ESE | 1% |
| Thursday Night | 32°F | Mostly Cloudy | 1 to 7 mph NNW | 4% |
| Friday | 53°F | Sunny | 2 to 8 mph ESE | 4% |
| Friday Night | 31°F | Partly Cloudy | 3 to 8 mph SE | 0% |
| Saturday | 55°F | Sunny | 5 mph SE | 0% |
| Saturday Night | 33°F | Mostly Clear | 6 mph SE | 0% |
| Sunday | 60°F | Mostly Sunny | 3 to 9 mph SE | 0% |
| Sunday Night | 35°F | Partly Cloudy | 3 mph NE | 0% |
| Monday | 59°F | Mostly Sunny | 2 mph ENE | 0% |
| Monday Night | 35°F | Partly Cloudy | 2 mph E | 1% |
| Tuesday | 60°F | Mostly Sunny | 2 mph SSE | 0% |
| Tuesday Night | 35°F | Partly Cloudy | 3 mph SSE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Cowley (44.883, -108.469). Updated through the day.
Growing snapshot for Cowley
Last spring frost
May 9
First fall frost
Sep 29
Growing season
142 days
Hardiness zone
5a
More local growing data for Cowley: nearby ZIP 82420 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lovell, Wy (6.3 mi from Cowley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.