Hartville, WY Weather & Growing Conditions
This Afternoon
72°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 72, with temperatures falling to around 67 in the afternoon. Southwest wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 31% |
| Tonight | 49°F | Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 10 mph NNE | 79% |
| Sunday | 65°F | Showers And Thunderstorms Likely | 0 to 15 mph NNW | 73% |
| Sunday Night | 45°F | Chance Rain Showers | 0 to 10 mph NW | 48% |
| Monday | 67°F | Slight Chance Rain Showers | 0 to 5 mph S | 18% |
| Monday Night | 46°F | Partly Cloudy | 5 to 10 mph SE | 8% |
| Tuesday | 73°F | Mostly Sunny | 5 to 15 mph SE | 9% |
| Tuesday Night | 48°F | Partly Cloudy | 5 to 15 mph SE | 12% |
| Wednesday | 78°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph S | 18% |
| Wednesday Night | 49°F | Partly Cloudy | 0 to 5 mph NW | 10% |
| Thursday | 80°F | Sunny | 0 to 5 mph N | 3% |
| Thursday Night | 51°F | Partly Cloudy | 0 mph | 3% |
| Friday | 80°F | Mostly Sunny | 0 to 15 mph SSE | 8% |
| Friday Night | 52°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 15 mph SSE | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hartville, WY
Last spring frost
May 17
First fall frost
Sep 28
Growing season
133 days
Hardiness zone
5a
Explore more for Hartville, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Torrington 29N, Wy (16.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.