Shell, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shell, a community in Big Horn County, Wyoming.
Tonight
57°F
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 57. Southwest wind 0 to 7 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Shell
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 7 mph SW | 33% |
| Saturday | 68°F | Patchy Fog then Chance Showers And Thunderstorms | 0 to 8 mph WSW | 61% |
| Saturday Night | 48°F | Showers And Thunderstorms Likely | 1 to 9 mph W | 68% |
| Sunday | 65°F | Rain Showers Likely | 3 mph W | 68% |
| Sunday Night | 47°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 3 mph ENE | 20% |
| Monday | 72°F | Sunny | 2 mph SSE | 2% |
| Monday Night | 51°F | Mostly Clear | 5 mph ENE | 0% |
| Tuesday | 78°F | Mostly Sunny | 2 mph SSE | 1% |
| Tuesday Night | 55°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph ENE | 10% |
| Wednesday | 78°F | Sunny | 2 mph SSE | 9% |
| Wednesday Night | 54°F | Mostly Clear | 5 mph ENE | 4% |
| Thursday | 80°F | Sunny | 3 mph SE | 3% |
| Thursday Night | 56°F | Partly Cloudy | 5 to 8 mph E | 1% |
| Friday | 81°F | Mostly Sunny | 5 mph SSE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Shell (44.535, -107.784). Updated through the day.
Growing snapshot for Shell
Last spring frost
May 16
First fall frost
Sep 24
Growing season
130 days
Hardiness zone
5a
More local growing data for Shell: nearby ZIP 82441 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Shell, Wy (8.3 mi from Shell). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.