Dayton, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dayton, a town in Sheridan County, Wyoming.
Overnight
42°F
Patchy Smoke
Patchy smoke. Mostly clear, with a low around 42. Wind around 0 mph.
7-day forecast for Dayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 42°F | Patchy Smoke | 0 mph | 0% |
| Tuesday | 76°F | Patchy Smoke | 0 to 6 mph ENE | 2% |
| Tuesday Night | 50°F | Patchy Smoke | 0 to 6 mph SSW | 15% |
| Wednesday | 85°F | Sunny | 1 to 6 mph NNE | 0% |
| Wednesday Night | 55°F | Mostly Clear | 2 to 6 mph WSW | 0% |
| Thursday | 91°F | Sunny | 0 to 6 mph NNW | 0% |
| Thursday Night | 59°F | Mostly Clear | 1 to 7 mph W | 0% |
| Friday | 96°F | Sunny | 0 to 6 mph N | 0% |
| Friday Night | 62°F | Mostly Clear | 5 to 8 mph W | 0% |
| Saturday | 95°F | Sunny | 5 to 13 mph NW | 0% |
| Saturday Night | 62°F | Mostly Clear | 2 to 8 mph SW | 1% |
| Sunday | 94°F | Sunny | 2 to 10 mph NW | 2% |
| Sunday Night | 63°F | Partly Cloudy | 2 to 7 mph WNW | 4% |
| Monday | 92°F | Sunny | 2 to 9 mph N | 3% |
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 Aug 4, 2026.