Heron, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Heron, a community in Sanders County, Montana.
Overnight
46°F
Mostly Clear
Mostly clear, with a low around 46. East wind around 1 mph.
7-day forecast for Heron
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 1 mph E | 0% |
| Tuesday | 82°F | Sunny | 1 to 6 mph SSE | 0% |
| Tuesday Night | 49°F | Mostly Clear | 1 to 6 mph SE | 0% |
| Wednesday | 86°F | Sunny then Patchy Smoke | 1 to 6 mph SW | 0% |
| Wednesday Night | 52°F | Patchy Smoke then Clear | 1 to 6 mph SSW | 0% |
| Thursday | 92°F | Sunny | 1 to 6 mph S | 0% |
| Thursday Night | 56°F | Mostly Clear | 1 to 7 mph S | 0% |
| Friday | 92°F | Sunny | 1 to 9 mph SSW | 0% |
| Friday Night | 56°F | Mostly Clear | 3 to 10 mph SSW | 0% |
| Saturday | 88°F | Sunny | 2 to 9 mph SSW | 0% |
| Saturday Night | 54°F | Mostly Clear | 2 to 9 mph SSW | 0% |
| Sunday | 86°F | Sunny | 2 to 7 mph SSW | 0% |
| Sunday Night | 52°F | Mostly Clear | 1 to 7 mph SE | 0% |
| Monday | 85°F | Sunny | 1 to 5 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Heron (48.064, -115.980). Updated through the day.
Growing snapshot for Heron
Last spring frost
May 20
First fall frost
Sep 20
Growing season
119 days
Hardiness zone
6b
More local growing data for Heron: nearby ZIP 59844 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Belknap
Bull Lake
Camas
Dixon
Hot Springs
Lonepine
Noxon
Old Agency
Paradise
Plains
Thompson Falls
Trout Creek
Climate data from the nearest NOAA station, Heron 2 Nw, Mt (6.2 mi from Heron). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.