Helena Flats, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Helena Flats, a community in Flathead County, Montana.
Today
77°F
Sunny
Sunny, with a high near 77. Northwest wind around 3 mph.
7-day forecast for Helena Flats
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 3 mph NW | 1% |
| Tonight | 44°F | Mostly Clear | 0 to 3 mph ESE | 0% |
| Wednesday | 83°F | Sunny | 0 to 7 mph SSE | 0% |
| Wednesday Night | 48°F | Mostly Clear | 0 to 6 mph WSW | 0% |
| Thursday | 89°F | Sunny | 0 to 8 mph S | 0% |
| Thursday Night | 51°F | Mostly Clear | 1 to 8 mph SE | 0% |
| Friday | 91°F | Sunny | 1 to 9 mph SE | 0% |
| Friday Night | 52°F | Clear | 1 to 14 mph S | 0% |
| Saturday | 89°F | Sunny | 1 to 12 mph S | 0% |
| Saturday Night | 52°F | Mostly Clear | 1 to 12 mph W | 0% |
| Sunday | 86°F | Sunny | 0 to 6 mph WNW | 0% |
| Sunday Night | 50°F | Mostly Clear | 1 to 6 mph NNW | 0% |
| Monday | 84°F | Sunny | 1 to 5 mph E | 1% |
| Monday Night | 49°F | Mostly Clear | 1 to 5 mph NNE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Helena Flats (48.279, -114.236). Updated through the day.
Growing snapshot for Helena Flats
Last spring frost
May 16
First fall frost
Sep 25
Growing season
129 days
Hardiness zone
5a
More local growing data for Helena Flats: nearby ZIP 59912 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Batavia
Bigfork
Columbia Falls
Coram
Essex
Evergreen
Forest Hill Village
Hungry Horse
Kalispell
Kila
Lakeside
Little Bitterroot Lake
Marion
Martin City
Olney
Pinnacle
Polebridge
Rhodes
Snowslip
Somers
West Glacier
Whitefish
Woods Bay
Climate data from the nearest NOAA station, Whitefish, Mt (9 mi from Helena Flats). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.