Hartville, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartville, a town in Platte County, Wyoming.
Today
53°F
Partly Sunny
Partly sunny. High near 53, with temperatures falling to around 48 in the afternoon. North northwest wind 5 to 10 mph.
7-day forecast for Hartville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 53°F | Partly Sunny | 5 to 10 mph NNW | 0% |
| Tonight | 33°F | Mostly Cloudy | 5 to 10 mph NNW | 0% |
| Thursday | 56°F | Mostly Sunny | 5 to 10 mph WSW | 0% |
| Thursday Night | 34°F | Mostly Cloudy | 0 to 5 mph SSW | 0% |
| Friday | 55°F | Mostly Sunny | 0 to 10 mph NW | 3% |
| Friday Night | 33°F | Mostly Clear | 0 to 5 mph WNW | 3% |
| Saturday | 57°F | Sunny | 0 to 10 mph NW | 0% |
| Saturday Night | 34°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 65°F | Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 40°F | Mostly Clear | 0 to 5 mph W | 0% |
| Monday | 61°F | Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 38°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Tuesday | 63°F | Mostly Sunny | 0 to 5 mph SW | 0% |
| Tuesday Night | 40°F | Partly Cloudy | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Hartville (42.328, -104.725). Updated through the day.
Growing snapshot for Hartville
Last spring frost
May 7
First fall frost
Oct 6
Growing season
152 days
Hardiness zone
5a
More local growing data for Hartville: nearby ZIP 82214 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Chugcreek
Chugwater
El Rancho
Glendo
Guernsey
Lakeview North
Orin
Slater
Westview Circle
Wheatland
Whiting
Y-O Ranch
Climate data from the nearest NOAA station, Guernsey 2Nw, Wy (1.5 mi from Hartville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.