Harman US

Elmo, MT Weather & Growing Conditions

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

This Afternoon
44°F
Partly Sunny
Partly sunny, with a high near 44. East wind around 2 mph.

7-day forecast for Elmo

WhenTempForecastWindPrecip
This Afternoon 44°F Partly Sunny 2 mph E 0%
Tonight 29°F Mostly Cloudy 0 mph 0%
Wednesday 46°F Mostly Cloudy 2 mph SSE 0%
Wednesday Night 29°F Partly Cloudy 0 mph 1%
Thursday 46°F Partly Sunny 0 to 6 mph SSW 8%
Thursday Night 32°F Mostly Cloudy 5 mph SSW 8%
Friday 48°F Partly Sunny 2 to 7 mph SSW 10%
Friday Night 35°F Mostly Cloudy 2 to 8 mph SW 10%
Saturday 51°F Partly Sunny 0 to 3 mph SSW 1%
Saturday Night 35°F Mostly Cloudy 1 mph SSW 8%
Sunday 54°F Partly Sunny then Slight Chance Light Rain 1 to 6 mph SSW 17%
Sunday Night 36°F Slight Chance Light Rain then Mostly Cloudy 1 to 5 mph WSW 17%
Monday 51°F Mostly Cloudy 2 mph WSW 12%
Monday Night 36°F Slight Chance Light Rain 1 mph SSW 17%

Forecast source: National Weather Service (api.weather.gov) for Elmo (47.829, -114.348). Updated through the day.

Growing snapshot for Elmo

Last spring frost
May 15
First fall frost
Sep 28
Growing season
134 days
Hardiness zone
6a

More local growing data for Elmo: nearby ZIP 59915 weather · frost dates · planting calendar · Montana frost dates

Nearby towns & communities

All Montana locations ›

Climate data from the nearest NOAA station, Skq Dam, Mt (12.6 mi from Elmo). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.