Whitewater, MT Weather & Growing Conditions
This Afternoon
73°F
Sunny
Sunny, with a high near 73. North northeast wind around 13 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Sunny | 13 mph NNE | 0% |
| Tonight | 50°F | Mostly Cloudy | 8 to 13 mph NE | 0% |
| Saturday | 68°F | Mostly Cloudy | 8 to 13 mph ENE | 7% |
| Saturday Night | 49°F | Cloudy | 9 mph E | 9% |
| Sunday | 65°F | Mostly Cloudy | 6 to 12 mph ESE | 6% |
| Sunday Night | 48°F | Partly Cloudy | 12 mph SE | 3% |
| Monday | 70°F | Partly Sunny | 10 to 16 mph SSE | 3% |
| Monday Night | 50°F | Partly Cloudy | 15 mph SSE | 0% |
| Tuesday | 76°F | Mostly Sunny | 10 mph SSE | 0% |
| Tuesday Night | 51°F | Mostly Clear | 5 to 8 mph SE | 1% |
| Wednesday | 76°F | Sunny | 3 to 10 mph S | 2% |
| Wednesday Night | 51°F | Mostly Clear | 7 mph SE | 4% |
| Thursday | 77°F | Sunny | 5 to 9 mph SSE | 1% |
| Thursday Night | 52°F | Mostly Clear | 9 mph SE | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Whitewater, MT
Last spring frost
May 19
First fall frost
Sep 22
Growing season
124 days
Hardiness zone
3b
Explore more for Whitewater, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Port Of Morgan, Mt (18.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.