Charlo, MT Weather & Growing Conditions
This Afternoon
72°F
Sunny
Sunny, with a high near 72. Northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Sunny | 3 mph NE | 14% |
| Tonight | 44°F | Partly Cloudy | 3 to 8 mph SE | 4% |
| Sunday | 76°F | Sunny | 0 to 3 mph NE | 1% |
| Sunday Night | 44°F | Mostly Clear | 5 mph ESE | 0% |
| Monday | 78°F | Sunny | 2 mph SSW | 0% |
| Monday Night | 46°F | Mostly Clear | 5 mph ESE | 0% |
| Tuesday | 78°F | Sunny | 2 mph SSW | 0% |
| Tuesday Night | 47°F | Partly Cloudy | 5 mph ESE | 2% |
| Wednesday | 76°F | Mostly Sunny | 1 to 5 mph SW | 2% |
| Wednesday Night | 45°F | Partly Cloudy | 1 to 6 mph SW | 9% |
| Thursday | 73°F | Mostly Sunny | 3 mph SSW | 1% |
| Thursday Night | 45°F | Partly Cloudy | 1 to 5 mph ENE | 8% |
| Friday | 72°F | Mostly Sunny | 1 to 5 mph S | 10% |
| Friday Night | 43°F | Mostly Cloudy then Slight Chance Light Rain | 2 to 6 mph SW | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Charlo, MT
Last spring frost
May 12
First fall frost
Oct 2
Growing season
142 days
Hardiness zone
6a
Explore more for Charlo, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Saint Ignatius, Mt (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.