Frannie, MT Weather & Growing Conditions
Today
51°F
Sunny
Sunny. High near 51, with temperatures falling to around 45 in the afternoon. Northwest wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 51°F | Sunny | 1 to 5 mph NW | 0% |
| Tonight | 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% |
| Tuesday Night | 41°F | Partly Cloudy | 5 to 15 mph SSE | 1% |
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.