Clancy, MT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clancy, a community in Jefferson County, Montana.
Overnight
49°F
Patchy Fog
Patchy fog and showers and thunderstorms. Cloudy, with a low around 49. North northwest wind around 3 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Clancy
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Patchy Fog | 3 mph NNW | 99% |
| Saturday | 61°F | Patchy Fog | 6 mph N | 98% |
| Saturday Night | 43°F | Slight Chance Light Rain then Patchy Fog | 3 mph SSW | 21% |
| Sunday | 71°F | Patchy Fog then Mostly Sunny | 5 mph WSW | 0% |
| Sunday Night | 43°F | Mostly Clear | 2 to 6 mph S | 0% |
| Monday | 76°F | Sunny | 6 mph SSW | 0% |
| Monday Night | 45°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 77°F | Sunny | 5 mph SE | 0% |
| Tuesday Night | 46°F | Partly Cloudy | 2 mph SSW | 1% |
| Wednesday | 78°F | Sunny | 2 to 6 mph SSE | 2% |
| Wednesday Night | 47°F | Mostly Clear | 6 mph S | 3% |
| Thursday | 79°F | Sunny | 5 to 8 mph S | 2% |
| Thursday Night | 47°F | Partly Cloudy | 7 mph S | 4% |
| Friday | 77°F | Mostly Sunny | 5 to 9 mph S | 5% |
Forecast source: National Weather Service (api.weather.gov) for Clancy (46.449, -112.003). Updated through the day.
Growing snapshot for Clancy
Last spring frost
Jun 18
First fall frost
Sep 5
Growing season
81 days
Hardiness zone
4b
More local growing data for Clancy: nearby ZIP 59634 weather · frost dates · planting calendar · Montana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Tizer Gardens, Mt (5 mi from Clancy). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.