Helena Valley Northeast, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Helena Valley Northeast, a community in Lewis And Clark County, Montana.
Today
79°F
Patchy Smoke
Patchy smoke between 11am and 3pm. Sunny, with a high near 79. East northeast wind 0 to 3 mph.
7-day forecast for Helena Valley Northeast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Patchy Smoke | 0 to 3 mph ENE | 0% |
| Tonight | 45°F | Mostly Clear | 0 to 3 mph NNE | 1% |
| Wednesday | 86°F | Sunny | 3 mph SSW | 0% |
| Wednesday Night | 48°F | Mostly Clear | 1 to 6 mph W | 0% |
| Thursday | 94°F | Sunny | 0 to 6 mph WSW | 0% |
| Thursday Night | 53°F | Mostly Clear | 1 to 10 mph W | 0% |
| Friday | 98°F | Sunny | 0 to 16 mph SW | 0% |
| Friday Night | 54°F | Mostly Clear | 3 to 16 mph W | 0% |
| Saturday | 95°F | Sunny | 1 to 10 mph W | 0% |
| Saturday Night | 54°F | Mostly Clear | 2 to 10 mph WNW | 0% |
| Sunday | 91°F | Sunny | 0 to 6 mph NNW | 1% |
| Sunday Night | 53°F | Mostly Clear | 3 to 9 mph NW | 1% |
| Monday | 89°F | Sunny | 0 to 6 mph NNW | 2% |
| Monday Night | 52°F | Mostly Clear | 3 to 9 mph NNW | 6% |
Forecast source: National Weather Service (api.weather.gov) for Helena Valley Northeast (46.707, -111.939). Updated through the day.
Growing snapshot for Helena Valley Northeast
Last spring frost
May 9
First fall frost
Sep 30
Growing season
142 days
Hardiness zone
4b
More local growing data for Helena Valley Northeast: nearby ZIP 59602 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Canyon Creek
Craig
East Helena
Helena
Helena Valley Northwest
Helena Valley Southeast
Helena Valley West Central
Helena West Side
Lincoln
Marysville
Milford Colony
Montana City
Rimini
South Hills
Spokane Creek
Unionville
Wolf Creek
York
Climate data from the nearest NOAA station, Helena Rgnl Ap, Mt (8.8 mi from Helena Valley Northeast). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.