Dayton, WY Weather & Growing Conditions
Overnight
29°F
Clear
Clear. Low around 29, with temperatures rising to around 31 overnight. West southwest wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 29°F | Clear | 1 mph WSW | 0% |
| Wednesday | 54°F | Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 27°F | Partly Cloudy | 2 mph SW | 0% |
| Thursday | 57°F | Mostly Sunny | 5 mph WNW | 0% |
| Thursday Night | 30°F | Mostly Cloudy | 3 mph W | 11% |
| Friday | 52°F | Sunny | 1 to 5 mph W | 11% |
| Friday Night | 30°F | Mostly Clear | 1 to 8 mph SW | 0% |
| Saturday | 59°F | Sunny | 1 to 7 mph W | 0% |
| Saturday Night | 32°F | Mostly Clear | 1 to 6 mph SW | 0% |
| Sunday | 67°F | Sunny | 1 to 9 mph W | 1% |
| Sunday Night | 36°F | Partly Cloudy | 0 to 7 mph WSW | 1% |
| Monday | 58°F | Mostly Sunny | 2 mph NW | 0% |
| Monday Night | 35°F | Partly Cloudy | 2 mph SW | 1% |
| Tuesday | 62°F | Mostly Sunny | 2 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dayton, WY
Last spring frost
May 24
First fall frost
Sep 18
Growing season
114 days
Hardiness zone
5a
Explore more for Dayton, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Dayton, Wy (5.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.