McKinnon, WY Weather & Growing Conditions
Today
43°F
Cloudy then Chance Rain Showers
A chance of rain showers after 3pm. Cloudy. High near 43, with temperatures falling to around 39 in the afternoon. North northwest wind 1 to 7 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 43°F | Cloudy then Chance Rain Showers | 1 to 7 mph NNW | 29% |
| Tonight | 27°F | Partly Cloudy | 2 to 6 mph WNW | 12% |
| Thursday | 46°F | Mostly Sunny | 3 mph NNW | 3% |
| Thursday Night | 28°F | Mostly Cloudy | 5 mph W | 12% |
| Friday | 47°F | Sunny | 5 to 9 mph WNW | 4% |
| Friday Night | 28°F | Mostly Clear | 3 to 10 mph WSW | 1% |
| Saturday | 51°F | Sunny | 3 mph W | 0% |
| Saturday Night | 30°F | Mostly Clear | 2 mph SSW | 0% |
| Sunday | 56°F | Sunny | 2 mph S | 0% |
| Sunday Night | 33°F | Partly Cloudy | 3 mph SSW | 0% |
| Monday | 56°F | Mostly Sunny | 1 mph S | 0% |
| Monday Night | 33°F | Mostly Cloudy | 3 mph SW | 0% |
| Tuesday | 55°F | Partly Sunny | 2 mph W | 0% |
| Tuesday Night | 33°F | Partly Cloudy | 3 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for McKinnon, WY
Last spring frost
May 22
First fall frost
Sep 29
Growing season
128 days
Hardiness zone
5b
Explore more for McKinnon, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Manila, Ut (11.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.