Sunburst, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sunburst, a town in Toole County, Montana.
This Afternoon
69°F
Mostly Sunny
Mostly sunny, with a high near 69. North northeast wind around 10 mph.
7-day forecast for Sunburst
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Sunny | 10 mph NNE | 0% |
| Tonight | 48°F | Mostly Cloudy | 3 to 9 mph NNW | 0% |
| Saturday | 69°F | Mostly Sunny | 2 to 10 mph WSW | 0% |
| Saturday Night | 47°F | Partly Cloudy | 10 mph SSE | 0% |
| Sunday | 72°F | Sunny | 9 to 14 mph S | 0% |
| Sunday Night | 48°F | Mostly Clear | 9 to 13 mph SSE | 0% |
| Monday | 77°F | Sunny | 12 mph S | 0% |
| Monday Night | 49°F | Mostly Clear | 6 to 10 mph SSW | 0% |
| Tuesday | 73°F | Mostly Sunny | 6 to 9 mph WNW | 0% |
| Tuesday Night | 49°F | Partly Cloudy | 6 mph S | 1% |
| Wednesday | 74°F | Sunny | 6 to 12 mph SW | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 6 to 10 mph SW | 3% |
| Thursday | 72°F | Mostly Sunny | 6 to 9 mph S | 3% |
| Thursday Night | 50°F | Partly Cloudy | 9 mph SSE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Sunburst (48.874, -111.901). Updated through the day.
Growing snapshot for Sunburst
Last spring frost
May 17
First fall frost
Sep 25
Growing season
129 days
Hardiness zone
4a
More local growing data for Sunburst: nearby ZIP 59482 weather · frost dates · planting calendar · Montana frost dates
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Climate data from the nearest NOAA station, Sunburst 8 E, Mt (5.9 mi from Sunburst). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.