Hillsdale, WY Weather & Growing Conditions
Today
49°F
Mostly Cloudy
Mostly cloudy. High near 49, with temperatures falling to around 43 in the afternoon. North northwest wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 49°F | Mostly Cloudy | 5 to 10 mph NNW | 1% |
| Tonight | 30°F | Mostly Cloudy | 5 to 10 mph NNW | 0% |
| Thursday | 55°F | Mostly Sunny | 5 to 10 mph NNW | 0% |
| Thursday Night | 32°F | Partly Cloudy | 5 to 10 mph SW | 0% |
| Friday | 56°F | Slight Chance Rain Showers | 5 to 15 mph NW | 15% |
| Friday Night | 31°F | Mostly Clear | 5 to 10 mph WNW | 8% |
| Saturday | 57°F | Sunny | 5 to 15 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 5 to 10 mph W | 0% |
| Sunday | 63°F | Sunny | 10 mph SW | 0% |
| Sunday Night | 39°F | Mostly Clear | 10 mph WSW | 0% |
| Monday | 63°F | Sunny | 5 to 10 mph NW | 0% |
| Monday Night | 36°F | Partly Cloudy | 5 to 10 mph WNW | 0% |
| Tuesday | 62°F | Mostly Sunny | 10 mph WSW | 0% |
| Tuesday Night | 38°F | Partly Cloudy | 10 mph W | 1% |
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.