Weather on April 3 at Gateway Arch

Gateway Arch National Park

MOMidwest450 ft elevation
Avg High66°F
Avg Low43°F
Warmest202673°F
Coldest198735°F

Based on 56 years of data from St. Louis, MO

Planning Your Visit

April 3rd in Gateway Arch National Park (via St. Louis, MO) typically brings mild spring weather, with average highs around 66°F and lows near 43°F. Over 56 years of records, the warmest April 3rd was in 2026 (73°F average), while the coldest was 1987 (35°F) — a 38°F range across recorded history. Rain or other precipitation has occurred on about 34% of April 3rd dates historically, with the wettest April 3rd recording 3.51" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.

The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.

Planning for April 3rd in Gateway Arch? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecipSnow
202683°F63°F0"0"
202562°F47°F0.36"--
202447°F41°F0.13"--
202376°F53°F0"0"
202267°F32°F0"0"
202174°F33°F0"0"
202072°F43°F0"0"
201966°F37°F0"0"
201863°F34°F0.71"0"
201770°F57°F0.91"0"
201660°F39°F0"0"
201573°F50°F3.51"0"
201465°F48°F3.18"0"
201349°F34°F0"0"
201288°F56°F0"--
201172°F42°F0"0"
201079°F49°F1.3"0"
200962°F39°F1.07"0"
200855°F35°F1.27"0"
200784°F52°F0"0"
200679°F48°F0.56"0"
200559°F36°F0"0"
200461°F32°F0"0"
200382°F63°F0"0"
200260°F30°F0"0"
200164°F47°F0.13"0"
200064°F49°F0"0"
199982°F62°F0.74"0"
199866°F45°F1.19"0"
199770°F46°F0"0"
199679°F41°F0"0"
199567°F51°F0"0"
199460°F35°F0.18"0"
199346°F32°F0"0"
199260°F29°F0"0"
199173°F53°F0"0"
199053°F32°F0"0"
198959°F42°F1.5"0"
198867°F42°F0"0"
198747°F23°F0"0"
198684°F59°F0"0"
198571°F49°F0"0"
198464°F43°F2.84"0"
198352°F38°F0.38"0"
198275°F47°F0"0"
198185°F59°F0"0"
198071°F53°F0"0"
197941°F32°F0"0"
197866°F55°F0.51"0"
197773°F35°F0"0"
197677°F51°F0"0"
197554°F28°F0"0"
197474°F49°F0.56"0"
197351°F42°F0"0"
197253°F27°F0"0"
197161°F36°F0"0"

April 3 at Nearby Parks

Holiday Weather at Gateway Arch

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

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