Centennial, WY Weather & Growing Conditions
Tonight
38°F
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 38. West southwest wind 10 to 15 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 38°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 10 to 15 mph WSW | 43% |
| Saturday | 47°F | Rain And Snow Showers Likely then Slight Chance Showers And Thunderstorms | 15 mph WSW | 59% |
| Saturday Night | 33°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 15 mph WSW | 20% |
| Sunday | 44°F | Slight Chance Rain And Snow Showers then Partly Sunny | 10 to 15 mph W | 19% |
| Sunday Night | 31°F | Mostly Clear | 10 to 15 mph W | 2% |
| Monday | 51°F | Sunny | 10 mph W | 3% |
| Monday Night | 36°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Tuesday | 55°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph WSW | 23% |
| Tuesday Night | 38°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 18% |
| Wednesday | 53°F | Chance Rain Showers | 10 to 15 mph W | 37% |
| Wednesday Night | 38°F | Partly Cloudy | 5 to 10 mph WSW | 6% |
| Thursday | 55°F | Mostly Sunny | 5 to 10 mph S | 13% |
| Thursday Night | 39°F | Mostly Cloudy | 5 to 10 mph S | 13% |
| Friday | 56°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 mph WSW | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Centennial, WY
Last spring frost
Jun 2
First fall frost
Sep 19
Growing season
106 days
Hardiness zone
5a
Explore more for Centennial, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Centennial 1Ne, Wy (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.