Lost Springs, WY Weather & Growing Conditions
Today
72°F
Smoke then Partly Sunny
Smoke before noon. Partly sunny, with a high near 72. South southeast wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Smoke then Partly Sunny | 5 to 10 mph SSE | 1% |
| Tonight | 50°F | Mostly Clear then Slight Chance Rain Showers | 10 to 15 mph SE | 17% |
| Wednesday | 82°F | Sunny | 5 to 10 mph S | 2% |
| Wednesday Night | 54°F | Mostly Clear | 5 to 15 mph SSE | 2% |
| Thursday | 89°F | Sunny | 5 mph WNW | 0% |
| Thursday Night | 58°F | Clear | 5 to 10 mph SE | 0% |
| Friday | 94°F | Sunny | 5 mph WSW | 1% |
| Friday Night | 62°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Saturday | 96°F | Sunny | 10 to 15 mph WNW | 0% |
| Saturday Night | 62°F | Mostly Clear | 5 to 15 mph ESE | 0% |
| Sunday | 95°F | Sunny | 5 to 15 mph WSW | 3% |
| Sunday Night | 62°F | Partly Cloudy | 5 to 15 mph ESE | 8% |
| Monday | 94°F | Mostly Sunny | 5 to 15 mph ESE | 7% |
| Monday Night | 60°F | Chance Showers And Thunderstorms then Partly Cloudy | 10 to 15 mph ESE | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Lost Springs, WY
Last spring frost
May 25
First fall frost
Sep 15
Growing season
112 days
Hardiness zone
5a
Explore more for Lost Springs, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Glendo 6Ne, Wy (19.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.