Glenrock, WY Weather & Growing Conditions
Tonight
54°F
Mostly Cloudy
Mostly cloudy, with a low around 54. South southwest wind 5 to 10 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Cloudy | 5 to 10 mph SSW | 4% |
| Saturday | 68°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph WSW | 28% |
| Saturday Night | 46°F | Slight Chance Rain Showers | 5 to 10 mph SW | 22% |
| Sunday | 57°F | Partly Sunny | 10 mph WNW | 14% |
| Sunday Night | 43°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph WSW | 18% |
| Monday | 63°F | Sunny | 5 mph NW | 3% |
| Monday Night | 47°F | Mostly Clear | 5 to 15 mph SE | 0% |
| Tuesday | 70°F | Sunny | 5 to 10 mph NNW | 2% |
| Tuesday Night | 52°F | Partly Cloudy | 5 to 10 mph SSE | 13% |
| Wednesday | 71°F | Mostly Sunny | 10 mph W | 12% |
| Wednesday Night | 51°F | Partly Cloudy | 5 to 10 mph SW | 4% |
| Thursday | 73°F | Mostly Sunny | 5 to 10 mph W | 6% |
| Thursday Night | 53°F | Partly Cloudy | 10 mph SSE | 11% |
| Friday | 74°F | Mostly Sunny | 10 mph SW | 8% |
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 Sep 19, 2026.