Osage, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Osage, a community in Weston County, Wyoming.
Today
73°F
Areas Of Smoke
Areas of smoke. Mostly sunny, with a high near 73. Southeast wind around 5 mph.
7-day forecast for Osage
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Areas Of Smoke | 5 mph SE | 4% |
| Tonight | 50°F | Partly Cloudy then Slight Chance Rain Showers | 3 to 7 mph SE | 18% |
| Wednesday | 82°F | Sunny | 3 to 7 mph S | 2% |
| Wednesday Night | 54°F | Mostly Clear | 6 mph SE | 0% |
| Thursday | 91°F | Sunny | 1 to 7 mph W | 0% |
| Thursday Night | 60°F | Mostly Clear | 3 to 8 mph NE | 0% |
| Friday | 95°F | Sunny | 2 to 8 mph S | 0% |
| Friday Night | 65°F | Mostly Clear | 6 to 9 mph E | 0% |
| Saturday | 97°F | Sunny | 5 to 12 mph N | 0% |
| Saturday Night | 64°F | Mostly Clear | 5 to 12 mph E | 1% |
| Sunday | 97°F | Sunny | 5 to 14 mph SE | 1% |
| Sunday Night | 64°F | Partly Cloudy | 5 to 14 mph E | 10% |
| Monday | 94°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 14 mph S | 15% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 6 to 15 mph E | 29% |
Forecast source: National Weather Service (api.weather.gov) for Osage (43.985, -104.435). Updated through the day.
Growing snapshot for Osage
Last spring frost
May 20
First fall frost
Sep 23
Growing season
123 days
Hardiness zone
4b
More local growing data for Osage: nearby ZIP 82723 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Upton, Wy (11.4 mi from Osage). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.