Greybull, WY Weather & Growing Conditions
This Afternoon
83°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 3pm. Mostly sunny. High near 83, with temperatures falling to around 80 in the afternoon. South southwest wind 2 to 6 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 83°F | Chance Showers And Thunderstorms | 2 to 6 mph SSW | 43% |
| Tonight | 53°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 8 mph NW | 67% |
| Saturday | 69°F | Patchy Fog then Chance Showers And Thunderstorms | 2 to 16 mph NW | 61% |
| Saturday Night | 47°F | Showers And Thunderstorms Likely | 5 to 17 mph NW | 64% |
| Sunday | 67°F | Chance Rain Showers | 2 to 8 mph NW | 47% |
| Sunday Night | 45°F | Mostly Cloudy | 1 to 7 mph SW | 6% |
| Monday | 74°F | Mostly Sunny | 3 mph SE | 0% |
| Monday Night | 47°F | Mostly Clear | 2 mph E | 0% |
| Tuesday | 79°F | Mostly Sunny | 2 mph SE | 0% |
| Tuesday Night | 50°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 2 mph E | 12% |
| Wednesday | 80°F | Sunny | 2 mph SSE | 6% |
| Wednesday Night | 50°F | Mostly Clear | 3 mph ENE | 4% |
| Thursday | 82°F | Sunny | 5 mph SSE | 3% |
| Thursday Night | 51°F | Partly Cloudy | 6 mph ESE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Greybull, WY
Last spring frost
May 11
First fall frost
Sep 23
Growing season
133 days
Hardiness zone
4b
Explore more for Greybull, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Greybull, Wy (2.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.