Gillette, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Gillette, a city in Campbell County, Wyoming.
Tonight
28°F
Mostly Clear
Mostly clear, with a low around 28. West wind around 5 mph.
7-day forecast for Gillette
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 28°F | Mostly Clear | 5 mph W | 0% |
| Wednesday | 53°F | Mostly Sunny | 3 to 9 mph NW | 0% |
| Wednesday Night | 29°F | Mostly Cloudy | 2 to 8 mph W | 0% |
| Thursday | 61°F | Sunny | 8 to 13 mph S | 0% |
| Thursday Night | 33°F | Partly Cloudy | 10 mph SW | 1% |
| Friday | 54°F | Sunny | 2 to 8 mph W | 1% |
| Friday Night | 33°F | Mostly Clear | 3 to 9 mph SW | 8% |
| Saturday | 58°F | Sunny | 3 to 12 mph W | 2% |
| Saturday Night | 35°F | Mostly Clear | 3 to 13 mph SW | 0% |
| Sunday | 68°F | Sunny | 10 to 17 mph SW | 0% |
| Sunday Night | 39°F | Mostly Clear | 9 mph W | 0% |
| Monday | 60°F | Mostly Sunny | 8 mph NE | 0% |
| Monday Night | 38°F | Partly Cloudy | 6 to 9 mph S | 0% |
| Tuesday | 63°F | Mostly Sunny | 6 to 10 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Gillette (44.273, -105.499). Updated through the day.
Growing snapshot for Gillette
Last spring frost
May 15
First fall frost
Oct 1
Growing season
136 days
Hardiness zone
4b
More local growing data for Gillette: nearby ZIP 82727 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Gillette 4Se, Wy (13.1 mi from Gillette). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.