Glasgow, MT Weather & Growing Conditions
Overnight
46°F
Mostly Clear
Mostly clear, with a low around 46. West wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 10 mph W | 0% |
| Tuesday | 75°F | Sunny | 9 to 14 mph WNW | 0% |
| Tuesday Night | 52°F | Mostly Clear | 5 to 12 mph WSW | 1% |
| Wednesday | 85°F | Partly Sunny | 8 to 15 mph WSW | 0% |
| Wednesday Night | 55°F | Partly Cloudy | 5 to 14 mph WNW | 0% |
| Thursday | 90°F | Sunny | 3 to 12 mph WNW | 0% |
| Thursday Night | 57°F | Mostly Clear | 8 to 13 mph NNE | 0% |
| Friday | 90°F | Sunny | 9 mph E | 0% |
| Friday Night | 59°F | Mostly Clear | 10 to 14 mph ENE | 0% |
| Saturday | 90°F | Sunny | 13 mph ENE | 0% |
| Saturday Night | 60°F | Partly Cloudy | 10 to 16 mph NE | 2% |
| Sunday | 88°F | Mostly Sunny | 14 mph ENE | 2% |
| Sunday Night | 59°F | Partly Cloudy | 16 mph NE | 13% |
| Monday | 85°F | Chance Showers And Thunderstorms | 14 mph ENE | 25% |
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 Aug 4, 2026.