National Park · MO

Gateway Arch

Best seasonApr–Oct

Entrance$19

Fly intoSTL

When to go · season and historical weather

Sweet spotPeak Apr–Oct. Go in Mar, Nov for similar weather.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Bar height shows the season; shaded months are the window to go. Select a month for historical weather.

Weather data & source

2018–2023 averages, not a forecast. Wet days estimate days with at least 1 mm of rain or snow using a calibrated ERA5 threshold. Contains modified Copernicus Climate Change Service information. Weather data by Open-Meteo.com (AWS Open Data, CC BY 4.0). Sunny share of daylight does not describe nighttime visibility. Season bars and highlighted months are separate from these weather averages. ERA5 via Open-Meteo AWS Open Data

On the map

Map showing the location of Gateway Arch

When to go

Normal Daily Mean Temperature (in degrees Fahrenheit)* January - 29.3 February - 33.9 March - 45.1 April - 56.7 May - 66.1 June - 75.4 July - 79.8 August - 77.6 September - 70.2 October - 58.4 November - 46.2 December - 33.9 Average Percent of Days with Sunshine* January - 50% February - 52% March - 54% April - 56% May - 59% June - 66% July - 68% August - 65% September - 63% October - 60% November - 46% December - 53% *Source: National Oceanic and Atmospheric Administration

Know before you go

Entrance $19Fly into STL

Check current conditions with NPS →