Frannie, MT Weather & Growing Conditions
Overnight
34°F
Partly Cloudy
Partly cloudy. Low around 34, with temperatures rising to around 36 overnight. Southeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 34°F | Partly Cloudy | 6 mph SE | 0% |
| Wednesday | 51°F | Sunny | 1 to 5 mph NW | 0% |
| Wednesday Night | 34°F | Mostly Clear | 3 to 20 mph SE | 0% |
| Thursday | 53°F | Mostly Sunny | 2 to 20 mph ESE | 6% |
| Thursday Night | 35°F | Slight Chance Rain Showers | 2 to 7 mph N | 17% |
| Friday | 51°F | Sunny | 5 to 15 mph SE | 5% |
| Friday Night | 36°F | Mostly Clear | 12 to 20 mph SE | 0% |
| Saturday | 54°F | Sunny | 8 to 16 mph SSE | 0% |
| Saturday Night | 40°F | Mostly Clear | 8 to 29 mph SSE | 0% |
| Sunday | 59°F | Mostly Sunny | 14 to 29 mph SE | 0% |
| Sunday Night | 41°F | Partly Cloudy | 7 to 14 mph SE | 0% |
| Monday | 57°F | Mostly Sunny | 5 to 8 mph SE | 0% |
| Monday Night | 41°F | Partly Cloudy | 5 to 10 mph SE | 1% |
| Tuesday | 58°F | Mostly Sunny | 5 to 10 mph SSE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Frannie, MT
Last spring frost
May 14
First fall frost
Sep 24
Growing season
129 days
Hardiness zone
5a
Explore more for Frannie, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Bridger 2 N, Mt (16.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.