Upton, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Upton, a town in Weston County, Wyoming.
Today
74°F
Areas Of Smoke
Areas of smoke. Mostly sunny, with a high near 74. East wind 1 to 5 mph.
7-day forecast for Upton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Areas Of Smoke | 1 to 5 mph E | 2% |
| Tonight | 50°F | Mostly Clear then Slight Chance Rain Showers | 6 mph SE | 17% |
| Wednesday | 84°F | Sunny | 6 mph S | 1% |
| Wednesday Night | 54°F | Mostly Clear | 5 mph SE | 0% |
| Thursday | 92°F | Sunny | 2 to 6 mph W | 0% |
| Thursday Night | 58°F | Mostly Clear | 6 mph E | 0% |
| Friday | 97°F | Sunny | 2 to 8 mph S | 0% |
| Friday Night | 63°F | Mostly Clear | 7 mph E | 0% |
| Saturday | 98°F | Sunny | 6 to 10 mph N | 0% |
| Saturday Night | 62°F | Mostly Clear | 3 to 10 mph E | 1% |
| Sunday | 98°F | Sunny | 6 to 13 mph SW | 2% |
| Sunday Night | 63°F | Partly Cloudy | 5 to 13 mph NE | 12% |
| Monday | 95°F | Sunny | 5 to 14 mph E | 12% |
| Monday Night | 62°F | Chance Showers And Thunderstorms | 5 to 14 mph E | 31% |
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 Aug 4, 2026.