Bloomfield, MT Weather & Growing Conditions
Overnight
55°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Northeast wind around 8 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Chance Showers And Thunderstorms | 8 mph NE | 42% |
| Saturday | 64°F | Rain Showers Likely | 8 to 14 mph ENE | 71% |
| Saturday Night | 50°F | Rain Showers | 14 mph E | 82% |
| Sunday | 60°F | Rain Showers | 14 mph E | 77% |
| Sunday Night | 48°F | Mostly Cloudy | 7 to 13 mph ESE | 12% |
| Monday | 68°F | Partly Sunny | 6 to 14 mph SE | 4% |
| Monday Night | 49°F | Partly Cloudy | 10 to 15 mph SE | 1% |
| Tuesday | 76°F | Sunny | 10 to 14 mph SSE | 0% |
| Tuesday Night | 52°F | Mostly Clear | 5 to 12 mph SSE | 2% |
| Wednesday | 78°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph SSE | 15% |
| Wednesday Night | 53°F | Mostly Clear | 5 mph S | 9% |
| Thursday | 79°F | Sunny | 3 to 9 mph SSE | 2% |
| Thursday Night | 54°F | Mostly Clear | 8 mph SE | 2% |
| Friday | 79°F | Mostly Sunny | 7 to 13 mph SE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Bloomfield, MT
Last spring frost
May 12
First fall frost
Sep 25
Growing season
135 days
Hardiness zone
4a
Explore more for Bloomfield, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Savage, Mt (24.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.