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Weather on June 18 at Gateway Arch

Gateway Arch National Park

MOMidwest450 ft elevation
Avg High86°F
Avg Low67°F
Warmest201890°F
Coldest199961°F

Based on 54 years of data from St. Louis, MO

Planning Your Visit

June 18th in Gateway Arch National Park (via St. Louis, MO) typically brings warm summer weather, with average highs around 86°F and lows near 67°F. Over 54 years of records, the warmest June 18th was in 2018 (90°F average), while the coldest was 1999 (61°F) — a 29°F range across recorded history. Rain or other precipitation has occurred on about 24% of June 18th dates historically, with the wettest June 18th recording 7.82" of rain. The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.

The last decade has been 5.8°F warmer on this date compared to 20-30 years ago.

Planning for June 18th in Gateway Arch? Stay hydrated and seek shade during peak afternoon hours.

Year by Year History

YearHighLowPrecipSnow
202681°F61°F0"0"
202588°F69°F0.1"0"
202488°F73°F0"0"
202386°F67°F7.82"0"
202287°F60°F0"0"
202199°F79°F0"0"
202090°F59°F0"0"
201985°F70°F0"--
201895°F84°F0"0"
201788°F69°F--0"
201685°F71°F0"0"
201579°F72°F0.71"0"
201491°F76°F0"0"
201387°F79°F5.84"0"
201289°F75°F0"0"
201181°F67°F4.98"0"
201085°F71°F0.3"0"
200991°F75°F0"0"
200879°F55°F0"0"
200793°F68°F0"0"
200689°F69°F1.24"0"
200581°F56°F0"0"
200488°F69°F0"0"
200387°F67°F0"0"
200280°F62°F0"0"
200192°F68°F0"0"
200068°F62°F0.51"0"
199972°F51°F0"0"
199888°F73°F0"0"
199778°F63°F0.53"0"
199687°F69°F0"0"
199588°F64°F0"0"
199494°F71°F0"0"
199391°F68°F0"0"
199289°F69°F0"0"
199185°F66°F0"0"
199092°F70°F0.2"0"
198985°F59°F0.18"0"
198891°F56°F0"0"
198790°F67°F0.05"0"
198686°F62°F0"0"
198578°F56°F0"0"
198493°F71°F----
198184°F56°F0"0"
198087°F59°F0"--
197984°F67°F0"0"
197893°F71°F2.08"0"
1977--67°F0"0"
197688°F68°F0"0"
197584°F69°F0"0"
197476°F56°F0"0"
197389°F68°F0"0"
197289°F64°F0"0"
197187°F62°F0"0"

June 18 at Nearby Parks

Holiday Weather at Gateway Arch

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

Explore More at Gateway Arch

See historical weather for other dates

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