Upton, WY Weather & Growing Conditions
Overnight
26°F
Mostly Clear
Mostly clear, with a low around 26. Wind chill values as low as 20. Northwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 26°F | Mostly Clear | 5 mph NW | 0% |
| Wednesday | 53°F | Mostly Sunny | 5 to 12 mph N | 0% |
| Wednesday Night | 27°F | Partly Cloudy | 3 to 8 mph NW | 0% |
| Thursday | 59°F | Mostly Sunny | 2 to 9 mph S | 0% |
| Thursday Night | 31°F | Partly Cloudy | 3 to 9 mph S | 0% |
| Friday | 53°F | Mostly Sunny | 2 to 8 mph N | 0% |
| Friday Night | 30°F | Mostly Clear | 3 mph SE | 0% |
| Saturday | 58°F | Sunny | 3 to 12 mph W | 0% |
| Saturday Night | 31°F | Mostly Clear | 2 to 6 mph S | 0% |
| Sunday | 64°F | Sunny | 6 to 10 mph S | 0% |
| Sunday Night | 35°F | Mostly Clear | 6 mph W | 0% |
| Monday | 59°F | Sunny | 6 mph NW | 0% |
| Monday Night | 35°F | Partly Cloudy | 7 mph SE | 0% |
| Tuesday | 61°F | Mostly Sunny | 6 mph SE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Upton, WY
Last spring frost
May 20
First fall frost
Sep 23
Growing season
123 days
Hardiness zone
4b
Explore more for Upton, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Upton, Wy (6.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.