Glasgow, MT Weather & Growing Conditions
Tonight
29°F
Patchy Fog
Patchy fog after 8pm. Partly cloudy, with a low around 29. East southeast wind 2 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 29°F | Patchy Fog | 2 to 7 mph ESE | 0% |
| Wednesday | 47°F | Patchy Fog then Partly Sunny | 1 to 6 mph NW | 0% |
| Wednesday Night | 30°F | Mostly Cloudy | 6 mph S | 0% |
| Thursday | 50°F | Mostly Sunny | 3 to 7 mph S | 0% |
| Thursday Night | 33°F | Partly Cloudy | 3 to 9 mph WSW | 1% |
| Friday | 53°F | Sunny | 7 to 12 mph WSW | 5% |
| Friday Night | 37°F | Partly Cloudy | 8 to 14 mph W | 7% |
| Saturday | 55°F | Sunny | 6 to 15 mph WSW | 2% |
| Saturday Night | 34°F | Mostly Clear | 7 mph S | 0% |
| Sunday | 61°F | Mostly Sunny | 6 to 10 mph SSW | 1% |
| Sunday Night | 39°F | Partly Cloudy | 10 to 17 mph W | 1% |
| Monday | 53°F | Mostly Sunny | 5 to 13 mph W | 1% |
| Monday Night | 35°F | Partly Cloudy | 6 mph S | 1% |
| Tuesday | 57°F | Mostly Sunny | 6 to 9 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Glasgow, MT
Last spring frost
May 3
First fall frost
Oct 1
Growing season
151 days
Hardiness zone
4a
Explore more for Glasgow, MT: full frost dates · planting calendar · Montana frost dates
Climate data from the nearest NOAA station, Glasgow #2, Mt (8.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.