Glenrock, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Glenrock, a town in Converse County, Wyoming.
Overnight
46°F
Areas Of Smoke
Areas of smoke. Partly cloudy, with a low around 46. East wind around 5 mph.
7-day forecast for Glenrock
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Areas Of Smoke | 5 mph E | 1% |
| Tuesday | 78°F | Areas Of Smoke then Mostly Sunny | 10 to 15 mph E | 1% |
| Tuesday Night | 49°F | Mostly Clear | 5 to 20 mph E | 6% |
| Wednesday | 88°F | Sunny | 5 to 10 mph WNW | 1% |
| Wednesday Night | 53°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Thursday | 94°F | Sunny | 5 to 10 mph W | 0% |
| Thursday Night | 57°F | Mostly Clear | 5 to 10 mph W | 0% |
| Friday | 99°F | Sunny | 5 to 10 mph W | 0% |
| Friday Night | 62°F | Mostly Clear | 5 to 15 mph SW | 0% |
| Saturday | 100°F | Sunny | 10 to 15 mph WNW | 0% |
| Saturday Night | 62°F | Mostly Clear | 5 to 15 mph SE | 0% |
| Sunday | 100°F | Sunny | 5 to 15 mph W | 1% |
| Sunday Night | 62°F | Partly Cloudy | 5 to 15 mph E | 6% |
| Monday | 98°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 15 mph NNW | 15% |
Forecast source: National Weather Service (api.weather.gov) for Glenrock (42.856, -105.862). Updated through the day.
Growing snapshot for Glenrock
Last spring frost
May 12
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
5a
More local growing data for Glenrock: nearby ZIP 82637 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Casper 1Sw, Wy (22.6 mi from Glenrock). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.