Lost Springs, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lost Springs, a town in Converse County, Wyoming.
Today
51°F
Mostly Sunny
Mostly sunny. High near 51, with temperatures falling to around 45 in the afternoon. North wind 5 to 10 mph.
7-day forecast for Lost Springs
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Tonight | 28°F | Mostly Cloudy | 5 mph NW | 0% |
| Thursday | 55°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Thursday Night | 30°F | Mostly Cloudy | 0 to 5 mph SSW | 0% |
| Friday | 53°F | Mostly Sunny | 5 to 10 mph WNW | 3% |
| Friday Night | 29°F | Mostly Clear | 0 to 5 mph WSW | 3% |
| Saturday | 57°F | Sunny | 0 to 10 mph WNW | 0% |
| Saturday Night | 31°F | Mostly Clear | 0 mph | 0% |
| Sunday | 65°F | Sunny | 0 to 10 mph SW | 0% |
| Sunday Night | 37°F | Mostly Clear | 5 mph W | 0% |
| Monday | 61°F | Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 35°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Tuesday | 63°F | Mostly Sunny | 0 to 10 mph WSW | 0% |
| Tuesday Night | 36°F | Partly Cloudy | 0 to 5 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Lost Springs (42.765, -104.925). Updated through the day.
Growing snapshot for Lost Springs
Last spring frost
May 25
First fall frost
Sep 15
Growing season
112 days
Hardiness zone
5a
More local growing data for Lost Springs: nearby ZIP 82224 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Glendo 6Ne, Wy (19.9 mi from Lost Springs). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.