Hanna, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hanna, a town in Carbon County, Wyoming.
This Afternoon
67°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 67. West southwest wind around 15 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Hanna
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Chance Showers And Thunderstorms | 15 mph WSW | 32% |
| Tonight | 41°F | Chance Showers And Thunderstorms | 5 to 15 mph WSW | 48% |
| Sunday | 59°F | Rain Showers Likely | 10 to 15 mph W | 55% |
| Sunday Night | 38°F | Partly Cloudy | 0 to 15 mph SW | 3% |
| Monday | 66°F | Sunny | 0 to 10 mph SW | 3% |
| Monday Night | 39°F | Mostly Clear | 5 to 10 mph SSE | 0% |
| Tuesday | 72°F | Sunny | 5 to 10 mph SSW | 5% |
| Tuesday Night | 44°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 22% |
| Wednesday | 69°F | Mostly Sunny | 10 to 20 mph WSW | 9% |
| Wednesday Night | 42°F | Mostly Clear | 5 to 15 mph WSW | 4% |
| Thursday | 72°F | Sunny | 5 to 10 mph W | 4% |
| Thursday Night | 45°F | Partly Cloudy | 5 mph ENE | 5% |
| Friday | 73°F | Mostly Sunny | 5 to 10 mph SSW | 9% |
| Friday Night | 46°F | Slight Chance Rain Showers then Partly Cloudy | 10 mph SW | 17% |
Forecast source: National Weather Service (api.weather.gov) for Hanna (41.870, -106.560). Updated through the day.
Growing snapshot for Hanna
Last spring frost
May 28
First fall frost
Sep 13
Growing season
108 days
Hardiness zone
5a
More local growing data for Hanna: nearby ZIP 82324 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Elk Mtn, Wy (2.1 mi from Hanna). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.