Temperature
Cool by day, cold at night.
58°Ftypical September high
Typical range
September climate
September in Glacier National Park
United States · North America
Cool days and plenty of sun.
Excellent time to visit
Daytime high
58°F
Lows around 37°F
Precipitation
9 days/mo
Sun
10.5 h/day
Air feel
Very dry
When to visit
Month-by-month fit
Best
Precipitation
Some precipitation is expected this month.
30%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Plenty of sun this month.
10.5 hSeptember sunshine
Heat & humidity by month
Very drySeptember Heat feel
Easy airWarm air
Hourly temperature pattern
In September, afternoons feel about 47° and nights feel near 32°.
FrigidFreezingVery coldColdCoolNight hours
Clear sky
Partly cloudy skies this month.
50%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
5 mphSeptember Calm
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 54°F, easing to about 50°F in early evening.
Avg temp Typical range
Morning46°F
Rain16%
Cloud51%
Humid airLow
Sun intensityLow
Midday52°F
Rain24%
Cloud52%
Humid airLow
Sun intensityStrong
Late afternoon54°F
Rain23%
Cloud54%
Humid airLow
Sun intensityModerate
Early evening50°F
Rain14%
Cloud48%
Humid airLow
Sun intensityMinimal
Best windowData tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 20 | 9 | 2.6 | 13 | 5.2 | 86 |
| Feb | 21 | 8 | 2.5 | 12 | 7.3 | 82 |
| Mar | 29 | 16 | 2.9 | 15 | 9.0 | 78 |
| Apr | 37 | 22 | 2.7 | 14 | 10.8 | 73 |
| May | 47 | 29 | 3.2 | 14 | 12.2 | 71 |
| Jun | 58 | 37 | 4.0 | 15 | 12.5 | 68 |
| Jul | 69 | 44 | 1.4 | 8 | 14.2 | 57 |
| Aug | 69 | 43 | 1.7 | 8 | 12.8 | 57 |
| Sep | 58 | 37 | 1.9 | 9 | 10.5 | 65 |
| Oct | 41 | 26 | 2.4 | 11 | 8.2 | 77 |
| Nov | 27 | 16 | 3.1 | 14 | 5.9 | 86 |
| Dec | 19 | 9 | 2.9 | 14 | 4.9 | 87 |
Similar climates
Similar
Similar travel styleYellowstone National ParkUnited StatesSimilar travel styleAnchorageUnited StatesSimilar travel styleJackson HoleUnited StatesSimilar travel styleHunza ValleyPakistan
Want a side-by-side climate view? Compare Glacier National Park with Yellowstone National Park.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology