Dayton, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dayton, a town in Sheridan County, Wyoming.
Overnight
30°F
Clear
Clear. Low around 30, with temperatures rising to around 32 overnight. Wind around 0 mph.
7-day forecast for Dayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 30°F | Clear | 0 mph | 0% |
| Wednesday | 55°F | Sunny | 0 to 3 mph N | 0% |
| Wednesday Night | 28°F | Partly Cloudy | 0 to 3 mph WSW | 0% |
| Thursday | 59°F | Mostly Sunny | 3 mph W | 0% |
| Thursday Night | 30°F | Mostly Cloudy | 3 mph W | 11% |
| Friday | 54°F | Sunny | 1 to 5 mph WSW | 11% |
| Friday Night | 30°F | Mostly Clear | 1 to 8 mph SSW | 0% |
| Saturday | 60°F | Sunny | 0 to 7 mph W | 0% |
| Saturday Night | 32°F | Mostly Clear | 0 to 7 mph SSW | 0% |
| Sunday | 68°F | Sunny | 1 to 9 mph W | 1% |
| Sunday Night | 36°F | Partly Cloudy | 0 to 6 mph WSW | 1% |
| Monday | 59°F | Mostly Sunny | 2 mph NW | 0% |
| Monday Night | 35°F | Partly Cloudy | 2 mph SSW | 1% |
| Tuesday | 64°F | Mostly Sunny | 2 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Dayton (44.873, -107.262). Updated through the day.
Growing snapshot for Dayton
Last spring frost
May 24
First fall frost
Sep 18
Growing season
114 days
Hardiness zone
5a
More local growing data for Dayton: nearby ZIP 82844 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Dayton, Wy (5.9 mi from Dayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.