Upton, WY Weather & Growing Conditions
Today
70°F
Patchy Fog then Chance Showers And Thunderstorms
Patchy fog and a slight chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 11am, then a chance of showers and thunderstorms. Mostly cloudy. High near 70, with temperatures falling to around 68 in the afternoon. Southeast wind 1 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Patchy Fog then Chance Showers And Thunderstorms | 1 to 10 mph SE | 45% |
| Tonight | 48°F | Showers And Thunderstorms | 3 to 12 mph SE | 87% |
| Sunday | 62°F | Showers And Thunderstorms | 7 to 15 mph SE | 80% |
| Sunday Night | 44°F | Showers And Thunderstorms Likely | 3 to 7 mph SW | 70% |
| Monday | 65°F | Partly Sunny | 3 to 10 mph S | 14% |
| Monday Night | 43°F | Partly Cloudy | 12 to 15 mph SE | 1% |
| Tuesday | 72°F | Mostly Sunny | 16 mph SE | 0% |
| Tuesday Night | 49°F | Mostly Clear | 12 to 17 mph SE | 12% |
| Wednesday | 77°F | Slight Chance Rain Showers then Mostly Sunny | 7 to 10 mph SE | 18% |
| Wednesday Night | 48°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 6 mph SE | 15% |
| Thursday | 80°F | Sunny | 2 to 6 mph S | 2% |
| Thursday Night | 50°F | Mostly Clear | 6 to 9 mph SE | 1% |
| Friday | 80°F | Mostly Sunny | 8 to 15 mph SE | 5% |
| Friday Night | 50°F | Partly Cloudy | 12 to 16 mph SE | 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 19, 2026.