Hillsdale, WY Weather & Growing Conditions
Tonight
30°F
Mostly Clear
Mostly clear, with a low around 30. West northwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 30°F | Mostly Clear | 5 to 10 mph WNW | 0% |
| Wednesday | 48°F | Partly Sunny | 5 to 10 mph NW | 2% |
| Wednesday Night | 31°F | Mostly Cloudy | 5 to 10 mph NNW | 1% |
| Thursday | 57°F | Mostly Sunny | 5 to 10 mph NNW | 0% |
| Thursday Night | 31°F | Partly Cloudy | 5 to 10 mph SW | 0% |
| Friday | 56°F | Mostly Sunny | 5 to 10 mph NW | 1% |
| Friday Night | 32°F | Mostly Clear | 5 to 10 mph WNW | 3% |
| Saturday | 57°F | Sunny | 5 to 15 mph WNW | 2% |
| Saturday Night | 32°F | Mostly Clear | 5 to 10 mph W | 1% |
| Sunday | 66°F | Sunny | 10 mph WSW | 0% |
| Sunday Night | 40°F | Mostly Clear | 10 mph W | 0% |
| Monday | 64°F | Sunny | 5 to 10 mph NNW | 0% |
| Monday Night | 38°F | Partly Cloudy | 5 to 10 mph SSW | 0% |
| Tuesday | 63°F | Mostly Sunny | 10 to 15 mph WNW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hillsdale, WY
Last spring frost
May 21
First fall frost
Sep 24
Growing season
124 days
Hardiness zone
5a
Explore more for Hillsdale, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Archer, Wy (12.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.