Whitewater, MT Weather & Growing Conditions
Today
74°F
Sunny
Sunny, with a high near 74. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Sunny | 6 to 13 mph NW | 1% |
| Tonight | 48°F | Partly Cloudy | 2 to 12 mph SW | 1% |
| Wednesday | 83°F | Mostly Sunny | 3 to 16 mph W | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 1 to 16 mph WNW | 0% |
| Thursday | 89°F | Sunny | 1 to 13 mph NW | 0% |
| Thursday Night | 52°F | Mostly Clear | 7 to 15 mph NNE | 1% |
| Friday | 88°F | Sunny | 8 mph ESE | 0% |
| Friday Night | 55°F | Mostly Clear | 9 to 13 mph NE | 1% |
| Saturday | 87°F | Sunny | 10 mph NE | 0% |
| Saturday Night | 56°F | Partly Cloudy | 8 to 13 mph NE | 8% |
| Sunday | 86°F | Mostly Sunny | 13 mph NE | 3% |
| Sunday Night | 54°F | Partly Cloudy then Slight Chance Rain Showers | 14 mph NNE | 16% |
| Monday | 83°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 12 mph ENE | 18% |
| Monday Night | 54°F | Chance Showers And Thunderstorms | 13 mph ENE | 29% |
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 Aug 4, 2026.