Mills, WY Weather & Growing Conditions
Today
73°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny. High near 73, with temperatures falling to around 70 in the afternoon. West wind around 8 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Mostly Sunny then Chance Showers And Thunderstorms | 8 mph W | 31% |
| Tonight | 45°F | Showers And Thunderstorms | 7 mph NW | 84% |
| Sunday | 63°F | Showers And Thunderstorms Likely | 8 to 13 mph WNW | 66% |
| Sunday Night | 41°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 1 to 7 mph NNW | 14% |
| Monday | 69°F | Mostly Sunny | 3 mph SW | 0% |
| Monday Night | 41°F | Mostly Clear | 3 to 8 mph SE | 0% |
| Tuesday | 78°F | Sunny | 2 to 8 mph SSW | 1% |
| Tuesday Night | 49°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 7 mph SSE | 14% |
| Wednesday | 78°F | Mostly Sunny | 14 to 18 mph SW | 8% |
| Wednesday Night | 48°F | Mostly Clear | 7 mph SW | 3% |
| Thursday | 80°F | Sunny | 9 mph SW | 2% |
| Thursday Night | 50°F | Partly Cloudy | 5 mph E | 2% |
| Friday | 81°F | Mostly Sunny | 6 to 12 mph SSW | 4% |
| Friday Night | 52°F | Partly Cloudy | 8 to 13 mph SSW | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mills, WY
Last spring frost
May 10
First fall frost
Sep 29
Growing season
138 days
Hardiness zone
5a
Explore more for Mills, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Casper Wwtp, Wy (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.