Cowley, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cowley, a town in Big Horn County, Wyoming.
Overnight
48°F
Areas Of Smoke
Areas of smoke. Mostly clear. Low around 48, with temperatures rising to around 51 overnight. West northwest wind around 3 mph.
7-day forecast for Cowley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Areas Of Smoke | 3 mph WNW | 0% |
| Tuesday | 78°F | Areas Of Smoke | 1 to 5 mph ENE | 0% |
| Tuesday Night | 52°F | Smoke | 1 to 14 mph NNW | 2% |
| Wednesday | 86°F | Sunny | 0 to 5 mph ESE | 0% |
| Wednesday Night | 55°F | Mostly Clear | 1 to 5 mph N | 0% |
| Thursday | 93°F | Sunny | 1 to 5 mph SE | 0% |
| Thursday Night | 60°F | Mostly Clear | 1 to 6 mph NNW | 0% |
| Friday | 98°F | Sunny | 1 to 5 mph SSE | 0% |
| Friday Night | 63°F | Mostly Clear | 8 mph N | 0% |
| Saturday | 97°F | Sunny | 5 mph N | 0% |
| Saturday Night | 63°F | Mostly Clear | 6 mph N | 0% |
| Sunday | 96°F | Sunny | 3 mph N | 1% |
| Sunday Night | 62°F | Partly Cloudy | 6 to 9 mph N | 5% |
| Monday | 94°F | Sunny | 5 mph NNW | 3% |
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 Aug 4, 2026.