Upton, WY Weather & Growing Conditions
Tonight
50°F
Showers And Thunderstorms
Showers and thunderstorms before 2am, then showers and thunderstorms. Cloudy. Low around 50, with temperatures rising to around 52 overnight. South wind 2 to 7 mph. Chance of precipitation is 80%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Showers And Thunderstorms | 2 to 7 mph S | 77% |
| Sunday | 62°F | Showers And Thunderstorms then Showers And Thunderstorms Likely | 6 mph NW | 84% |
| Sunday Night | 46°F | Showers And Thunderstorms | 5 mph NW | 82% |
| Monday | 65°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 10 mph SE | 15% |
| Monday Night | 44°F | Partly Cloudy | 12 to 16 mph SE | 3% |
| Tuesday | 72°F | Mostly Sunny | 17 mph SE | 0% |
| Tuesday Night | 50°F | Mostly Clear | 14 to 18 mph SE | 8% |
| Wednesday | 78°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 9 to 14 mph S | 20% |
| Wednesday Night | 49°F | Partly Cloudy | 2 to 8 mph S | 7% |
| Thursday | 81°F | Sunny | 2 to 6 mph S | 2% |
| Thursday Night | 52°F | Mostly Clear | 5 to 10 mph SE | 3% |
| Friday | 81°F | Mostly Sunny | 10 to 17 mph SE | 3% |
| Friday Night | 52°F | Partly Cloudy | 10 to 17 mph SE | 9% |
| Saturday | 79°F | Sunny | 10 mph S | 9% |
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 Sep 20, 2026.