Weather on March 17 at Gateway Arch

Gateway Arch National Park

MOMidwest450 ft elevation
Avg High57°F
Avg Low35°F
Warmest201265°F
Coldest202626°F

Based on 53 years of data from St. Louis, MO

Planning Your Visit

March 17th in Gateway Arch National Park (via St. Louis, MO) typically brings cool spring weather, with average highs around 57°F and lows near 35°F. Over 53 years of records, the warmest March 17th was in 2012 (65°F average), while the coldest was 2026 (26°F) — a 39°F range across recorded history. Rain or other precipitation has occurred on about 30% of March 17th dates historically, with the wettest March 17th recording 3.45" of rain. The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.4°F warmer on this date compared to 20-30 years ago.

Planning for March 17th in Gateway Arch? Bring layers as temperatures can vary throughout the day. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202635°F17°F0"--
202567°F28°F0"0"
202454°F31°F0"0"
202345°F30°F0"0"
202277°F47°F0"0"
202157°F42°F2.54"0"
202053°F40°F0"0"
201951°F32°F0"0"
201849°F43°F0.38"0"
201749°F35°F0.15"0"
201667°F44°F0"0"
201583°F47°F0"0"
201440°F21°F0"0"
201348°F34°F0.58"0"
201275°F56°F0.84"--
201167°F37°F0"--
201060°F43°F0"0"
200970°F40°F0"0"
200851°F35°F0"0"
200746°F29°F0"0"
200671°F37°F0"0"
200553°F27°F0"0"
200455°F31°F0.05"0"
200370°F42°F0"--
200240°F35°F0.03"0"
200141°F34°F0.1"0"
200043°F30°F0"0"
199971°F33°F0"0"
199845°F36°F1.09"0"
199750°F30°F0"0"
199660°F36°F0"0"
199577°F43°F0"0"
199460°F31°F0"0"
199345°F22°F0.38"0"
199269°F45°F0"0"
199157°F40°F3.45"0"
199063°F27°F0"0"
198981°F27°F0"0"
198840°F29°F0"0"
198759°F40°F0"0"
198444°F35°F0.13"0"
198369°F42°F0"0"
198281°F43°F0"0"
198057°F34°F1.8"0"
197956°F34°F0.08"0"
197841°F29°F0"--
197751°F42°F0"0"
197639°F24°F0"0"
197549°F30°F0"0"
197447°F27°F0"0"
197361°F32°F0.66"--
197258°F41°F0.03"--
197148°F--0"--

March 17 at Nearby Parks

Holiday Weather at Gateway Arch

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

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