Gillette, WY Weather & Growing Conditions
Tonight
23°F
Mostly Clear
Mostly clear, with a low around 23. West wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 23°F | Mostly Clear | 2 mph W | 0% |
| Wednesday | 54°F | Mostly Sunny | 2 to 9 mph NW | 0% |
| Wednesday Night | 23°F | Mostly Cloudy | 1 to 5 mph W | 0% |
| Thursday | 62°F | Sunny | 3 to 10 mph S | 0% |
| Thursday Night | 28°F | Partly Cloudy | 5 to 8 mph SW | 0% |
| Friday | 55°F | Sunny | 2 to 6 mph W | 1% |
| Friday Night | 28°F | Mostly Clear | 2 to 6 mph SW | 7% |
| Saturday | 59°F | Sunny | 3 to 10 mph W | 2% |
| Saturday Night | 29°F | Mostly Clear | 2 to 7 mph S | 0% |
| Sunday | 69°F | Sunny | 7 to 10 mph SW | 0% |
| Sunday Night | 34°F | Mostly Clear | 3 to 7 mph W | 0% |
| Monday | 62°F | Mostly Sunny | 6 mph N | 0% |
| Monday Night | 33°F | Partly Cloudy | 6 mph SE | 0% |
| Tuesday | 65°F | Mostly Sunny | 5 to 8 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Gillette, WY
Last spring frost
May 15
First fall frost
Oct 1
Growing season
136 days
Hardiness zone
4b
Explore more for Gillette, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Gillette 4Se, Wy (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.