Weather on March 20 at Glacier

Glacier National Park

MTRocky Mountain4,500 ft elevation
Avg High48°F
Avg Low26°F
Warmest202657°F
Coldest20027°F

Based on 56 years of data from Kalispell, MT

Elevation Note: Glacier sits at 4,500 ft. Expect temperatures 16°F cooler than the data shown below, which comes from Kalispell, MT at a lower elevation.

Planning Your Visit

March 20th in Glacier National Park (via Kalispell, MT) typically brings chilly spring weather, with average highs around 48°F and lows near 26°F. Over 56 years of records, the warmest March 20th was in 2026 (57°F average), while the coldest was 2002 (7°F) — a 50°F range across recorded history. Precipitation has occurred on 30% of recorded March 20th dates, with snow falling 7% of the time (heaviest snowfall: 1.4"). The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.

The last decade has been 5.3°F warmer on this date compared to 20-30 years ago.

Planning for March 20th in Glacier? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202668°F46°F0.05"0"
202549°F33°F0"0"
202465°F31°F0"0"
202347°F25°F0"0"
202245°F29°F0.03"0"
202149°F21°F0"0"
202049°F21°F0"0"
201950°F16°F0"0"
201843°F27°F0"0"
201751°F21°F0"0"
201658°F21°F0"0"
201561°F30°F0"0"
201438°F28°F0.05"0"
201350°F29°F0.33"0"
201242°F22°F0.18"0"
201147°F30°F0"0"
201053°F18°F0"0"
200956°F34°F0.08"0"
200840°F27°F0.36"0"
200749°F31°F0.03"0"
200644°F25°F0"0"
200537°F23°F0.2"1.4"
200449°F21°F0"--
200351°F26°F0"--
200211°F4°F0.25"--
200151°F19°F0"--
200044°F19°F0"--
199966°F28°F0"0"
199854°F22°F0"0"
199747°F34°F0.03"0"
199651°F25°F0"0"
199546°F24°F0.08"0"
199442°F24°F0"0"
199337°F28°F0.3"0.2"
199248°F30°F0.1"0"
199145°F32°F0"0"
199052°F38°F0.36"0"
198945°F26°F0"0"
198855°F41°F0"0"
198737°F30°F0.05"0.2"
198658°F27°F0"0"
198545°F28°F0"0"
198451°F36°F0"0"
198347°F20°F0"0"
198238°F25°F0"0"
198154°F27°F0"--
198054°F25°F0"--
197954°F24°F0"--
197858°F30°F0"--
197740°F11°F0"--
197635°F29°F0.15"0.6"
197543°F30°F0"--
197437°F12°F0"--
197359°F28°F0"0"
197255°F32°F0"--
197149°F22°F0"--

March 20 at Nearby Parks

Holiday Weather at Glacier

Official NPS WebsiteVisit nps.gov/glac for park information, alerts, and reservations

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