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Charlo, MT Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Charlo, a community in Lake County, Montana.

This Afternoon
44°F
Partly Sunny
Partly sunny, with a high near 44. Northwest wind around 1 mph.

7-day forecast for Charlo

WhenTempForecastWindPrecip
This Afternoon 44°F Partly Sunny 1 mph NW 0%
Tonight 23°F Areas Of Fog 1 mph ENE 0%
Wednesday 46°F Areas Of Fog then Partly Sunny 1 mph SSW 0%
Wednesday Night 24°F Patchy Fog 2 mph SSE 1%
Thursday 48°F Partly Sunny 3 mph S 11%
Thursday Night 27°F Mostly Cloudy 6 mph S 11%
Friday 51°F Partly Sunny then Slight Chance Light Rain 6 mph S 16%
Friday Night 31°F Slight Chance Light Rain then Mostly Cloudy 6 to 9 mph S 16%
Saturday 54°F Partly Sunny 1 to 6 mph SSE 2%
Saturday Night 31°F Partly Cloudy 1 to 6 mph SE 12%
Sunday 59°F Partly Sunny 2 to 6 mph SSW 14%
Sunday Night 32°F Mostly Cloudy 2 to 6 mph SSW 14%
Monday 54°F Mostly Cloudy 2 mph SSW 14%
Monday Night 32°F Slight Chance Light Rain 1 to 5 mph S 17%

Forecast source: National Weather Service (api.weather.gov) for Charlo (47.443, -114.172). Updated through the day.

Growing snapshot for Charlo

Last spring frost
May 12
First fall frost
Oct 2
Growing season
142 days
Hardiness zone
6a

More local growing data for Charlo: nearby ZIP 59824 weather · frost dates · planting calendar · Montana frost dates

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Climate data from the nearest NOAA station, Saint Ignatius, Mt (8.5 mi from Charlo). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.