McKinnon, WY Weather & Growing Conditions
Overnight
43°F
Patchy Fog
Patchy fog and a slight chance of showers and thunderstorms. Partly cloudy. Low around 43, with temperatures rising to around 46 overnight. South southwest wind around 2 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Patchy Fog | 2 mph SSW | 16% |
| Saturday | 63°F | Chance Showers And Thunderstorms | 1 to 7 mph WNW | 77% |
| Saturday Night | 36°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 8 mph W | 18% |
| Sunday | 63°F | Sunny | 5 to 9 mph WNW | 0% |
| Sunday Night | 36°F | Mostly Clear | 1 to 8 mph WNW | 0% |
| Monday | 68°F | Sunny | 1 to 5 mph NE | 0% |
| Monday Night | 41°F | Partly Cloudy | 5 mph SE | 4% |
| Tuesday | 68°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph SSE | 36% |
| Tuesday Night | 41°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 5 mph SW | 35% |
| Wednesday | 70°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph WNW | 23% |
| Wednesday Night | 40°F | Mostly Clear | 5 mph SW | 3% |
| Thursday | 72°F | Sunny | 5 mph SE | 7% |
| Thursday Night | 43°F | Partly Cloudy | 6 mph S | 5% |
| Friday | 73°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph S | 13% |
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 Sep 19, 2026.