Sand Coulee, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sand Coulee, a community in Cascade County, Montana.
Overnight
52°F
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 52. Southwest wind around 2 mph. Chance of precipitation is 40%.
7-day forecast for Sand Coulee
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Chance Light Rain | 2 mph SW | 39% |
| Saturday | 67°F | Slight Chance Light Rain then Mostly Cloudy | 0 to 6 mph NE | 22% |
| Saturday Night | 47°F | Mostly Cloudy | 3 to 7 mph SSE | 6% |
| Sunday | 73°F | Mostly Sunny | 3 mph NE | 1% |
| Sunday Night | 48°F | Mostly Clear | 3 to 9 mph SSE | 0% |
| Monday | 79°F | Sunny | 5 mph SSW | 0% |
| Monday Night | 51°F | Mostly Clear | 3 to 9 mph SSW | 0% |
| Tuesday | 79°F | Sunny | 7 mph SW | 0% |
| Tuesday Night | 51°F | Mostly Clear | 6 mph SSW | 0% |
| Wednesday | 80°F | Sunny | 6 mph SW | 1% |
| Wednesday Night | 53°F | Mostly Clear | 5 to 9 mph SSW | 4% |
| Thursday | 81°F | Sunny | 8 mph SW | 2% |
| Thursday Night | 53°F | Mostly Clear | 5 to 10 mph S | 7% |
| Friday | 77°F | Mostly Sunny | 6 to 9 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Sand Coulee (47.402, -111.173). Updated through the day.
Growing snapshot for Sand Coulee
Last spring frost
May 6
First fall frost
Oct 1
Growing season
147 days
Hardiness zone
4b
More local growing data for Sand Coulee: nearby ZIP 59472 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
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Fairfield
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Gibson Flats
Great Falls
Hardy
Malmstrom AFB
Monarch
Neihart
Pleasant Valley Colony
Riceville
Simms
Stockett
Sun Prairie
Sun River
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Ulm
Vaughn
Climate data from the nearest NOAA station, Great Falls 16St, Mt (10.9 mi from Sand Coulee). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.