Osage, WY Weather & Growing Conditions
Tonight
26°F
Mostly Clear
Mostly clear, with a low around 26. Wind chill values as low as 20. North wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 26°F | Mostly Clear | 3 to 7 mph N | 0% |
| Wednesday | 53°F | Mostly Sunny | 6 to 10 mph N | 0% |
| Wednesday Night | 27°F | Mostly Cloudy | 2 to 9 mph N | 0% |
| Thursday | 56°F | Sunny | 2 to 7 mph SE | 0% |
| Thursday Night | 31°F | Partly Cloudy | 2 to 7 mph E | 1% |
| Friday | 53°F | Sunny | 2 to 6 mph N | 1% |
| Friday Night | 30°F | Mostly Clear | 3 mph E | 5% |
| Saturday | 55°F | Sunny | 2 to 7 mph NW | 3% |
| Saturday Night | 31°F | Mostly Clear | 5 mph E | 0% |
| Sunday | 62°F | Sunny | 7 mph SE | 0% |
| Sunday Night | 37°F | Mostly Clear | 7 mph NE | 0% |
| Monday | 59°F | Sunny | 7 mph N | 0% |
| Monday Night | 36°F | Partly Cloudy | 7 mph SE | 0% |
| Tuesday | 61°F | Mostly Sunny | 7 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Osage, WY
Last spring frost
May 20
First fall frost
Sep 23
Growing season
123 days
Hardiness zone
4b
Explore more for Osage, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Upton, Wy (11.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.