Glenrock, WY Weather & Growing Conditions
Tonight
32°F
Mostly Clear
Mostly clear, with a low around 32. West southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 32°F | Mostly Clear | 10 mph WSW | 0% |
| Wednesday | 46°F | Mostly Sunny | 5 to 10 mph NW | 0% |
| Wednesday Night | 30°F | Mostly Cloudy | 5 to 10 mph W | 0% |
| Thursday | 50°F | Mostly Sunny | 5 to 10 mph SW | 0% |
| Thursday Night | 33°F | Partly Cloudy | 10 to 15 mph SW | 0% |
| Friday | 47°F | Sunny | 5 to 10 mph WSW | 1% |
| Friday Night | 32°F | Mostly Clear | 10 to 15 mph SW | 5% |
| Saturday | 51°F | Sunny | 5 to 15 mph WSW | 5% |
| Saturday Night | 36°F | Mostly Clear | 10 to 20 mph SW | 0% |
| Sunday | 58°F | Sunny | 20 to 25 mph SW | 0% |
| Sunday Night | 43°F | Mostly Clear | 20 to 25 mph WSW | 0% |
| Monday | 57°F | Sunny | 10 to 15 mph WSW | 0% |
| Monday Night | 41°F | Partly Cloudy | 10 to 15 mph SW | 0% |
| Tuesday | 57°F | Mostly Sunny | 10 to 15 mph WSW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Glenrock, WY
Last spring frost
May 12
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
5a
Explore more for Glenrock, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Casper 1Sw, Wy (22.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.