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
75°F
Smoke then Partly Sunny
Smoke before noon. Partly sunny, with a high near 75. Southeast wind 0 to 10 mph.
7-day forecast for Lost Springs
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 75°F | Smoke then Partly Sunny | 0 to 10 mph SE | 1% |
| Tonight | 50°F | Mostly Clear then Slight Chance Rain Showers | 5 to 15 mph SE | 16% |
| Wednesday | 84°F | Sunny | 5 mph S | 2% |
| Wednesday Night | 54°F | Mostly Clear | 0 to 10 mph SSE | 2% |
| Thursday | 91°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 58°F | Clear | 0 to 5 mph SE | 0% |
| Friday | 97°F | Sunny | 0 to 5 mph WSW | 1% |
| Friday Night | 61°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Saturday | 98°F | Sunny | 5 to 15 mph WNW | 0% |
| Saturday Night | 61°F | Mostly Clear | 5 to 15 mph E | 0% |
| Sunday | 98°F | Sunny | 5 to 15 mph WSW | 3% |
| Sunday Night | 62°F | Partly Cloudy | 5 to 15 mph ESE | 7% |
| Monday | 96°F | Mostly Sunny | 5 to 10 mph SSE | 8% |
| Monday Night | 60°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 15 mph ESE | 29% |
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 Aug 4, 2026.