McKinnon, WY Weather & Growing Conditions
Today
63°F
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms
A slight chance of showers and thunderstorms between 11am and noon, then showers and thunderstorms between noon and 4pm, then a chance of showers and thunderstorms. Partly sunny. High near 63, with temperatures falling to around 58 in the afternoon. West northwest wind 2 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms | 2 to 7 mph WNW | 91% |
| Tonight | 37°F | Chance Showers And Thunderstorms then Partly Cloudy | 8 mph W | 38% |
| Sunday | 62°F | Sunny | 8 mph W | 1% |
| Sunday Night | 37°F | Mostly Clear | 2 to 7 mph WSW | 0% |
| Monday | 66°F | Sunny | 1 to 5 mph ENE | 0% |
| Monday Night | 41°F | Partly Cloudy | 5 mph SE | 2% |
| Tuesday | 69°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph S | 29% |
| Tuesday Night | 42°F | Chance Showers And Thunderstorms | 6 mph SW | 48% |
| Wednesday | 68°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph W | 19% |
| Wednesday Night | 41°F | Mostly Clear | 5 mph WSW | 4% |
| Thursday | 71°F | Sunny | 6 mph SE | 6% |
| Thursday Night | 44°F | Partly Cloudy | 6 mph SSE | 4% |
| Friday | 71°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 mph SSE | 18% |
| Friday Night | 45°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 8 mph SSW | 14% |
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.