Deaver, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Deaver, a town in Big Horn County, Wyoming.
Tonight
45°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy, with a low around 45. Northwest wind 16 to 26 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Deaver
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 45°F | Showers And Thunderstorms | 16 to 26 mph NW | 75% |
| Sunday | 64°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 9 to 15 mph NW | 59% |
| Sunday Night | 45°F | Mostly Cloudy | 0 to 8 mph NNW | 1% |
| Monday | 70°F | Mostly Sunny | 0 to 7 mph SE | 0% |
| Monday Night | 46°F | Mostly Clear | 1 to 5 mph SE | 0% |
| Tuesday | 76°F | Sunny | 1 to 7 mph ESE | 0% |
| Tuesday Night | 51°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 3 mph N | 16% |
| Wednesday | 77°F | Mostly Sunny | 1 to 5 mph SSE | 11% |
| Wednesday Night | 50°F | Mostly Clear | 3 mph SE | 3% |
| Thursday | 80°F | Sunny | 3 to 10 mph SE | 1% |
| Thursday Night | 51°F | Mostly Clear | 5 to 8 mph SE | 1% |
| Friday | 81°F | Mostly Sunny | 3 to 10 mph SE | 1% |
| Friday Night | 50°F | Partly Cloudy | 5 to 8 mph SE | 7% |
| Saturday | 76°F | Mostly Sunny | 8 mph ENE | 10% |
Forecast source: National Weather Service (api.weather.gov) for Deaver (44.889, -108.596). Updated through the day.
Growing snapshot for Deaver
Last spring frost
May 6
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
5a
More local growing data for Deaver: nearby ZIP 82421 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Deaver, Wy (0.6 mi from Deaver). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.