Harman US

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

WhenTempForecastWindPrecip
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.