Upton, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Upton, a town in Weston County, Wyoming.
This Afternoon
49°F
Sunny
Sunny. High near 49, with temperatures falling to around 43 in the afternoon. North wind 6 to 9 mph, with gusts as high as 20 mph.
7-day forecast for Upton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 49°F | Sunny | 6 to 9 mph N | 0% |
| Tonight | 24°F | Mostly Clear | 3 mph N | 0% |
| Wednesday | 53°F | Mostly Sunny | 3 to 9 mph N | 0% |
| Wednesday Night | 24°F | Mostly Cloudy | 1 to 7 mph N | 0% |
| Thursday | 58°F | Sunny | 1 to 8 mph SE | 0% |
| Thursday Night | 29°F | Partly Cloudy | 3 to 8 mph S | 1% |
| Friday | 54°F | Sunny | 2 to 6 mph N | 1% |
| Friday Night | 28°F | Mostly Clear | 3 mph S | 5% |
| Saturday | 57°F | Sunny | 2 to 9 mph W | 3% |
| Saturday Night | 29°F | Mostly Clear | 2 to 6 mph S | 0% |
| Sunday | 64°F | Sunny | 7 to 10 mph S | 0% |
| Sunday Night | 35°F | Mostly Clear | 7 mph SW | 0% |
| Monday | 60°F | Sunny | 7 mph N | 0% |
| Monday Night | 34°F | Partly Cloudy | 7 mph SE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Upton (44.104, -104.637). Updated through the day.
Growing snapshot for Upton
Last spring frost
May 20
First fall frost
Sep 23
Growing season
123 days
Hardiness zone
4b
More local growing data for Upton: nearby ZIP 82730 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Upton, Wy (6.1 mi from Upton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.