Weather at Gateway Arch
Gateway Arch National Park is located in downtown St. Louis, Missouri. Weather here is typical of the region, with hot and humid summers and cool to cold winters. Severe thunderstorms are possible spring through fall.
Current Weather in the Gateway Arch Region
Averages and Records at Gateway Arch
| Month | Avg High | Avg Low | Record High | Record Low | Avg Precip |
|---|---|---|---|---|---|
| January | 40 | 21 | 78 | -19 | 2.62 |
| February | 46 | 25 | 81 | -13 | 2.62 |
| March | 56 | 35 | 89 | -7 | 3.34 |
| April | 67 | 46 | 93 | 18 | 3.83 |
| May | 76 | 55 | 93 | 32 | 4.65 |
| June | 84 | 65 | 102 | 41 | 4.10 |
| July | 88 | 69 | 105 | 44 | 4.44 |
| August | 87 | 67 | 105 | 41 | 3.40 |
| September | 80 | 58 | 103 | 32 | 3.40 |
| October | 69 | 46 | 94 | 18 | 3.42 |
| November | 56 | 36 | 85 | 3 | 3.92 |
| December | 43 | 25 | 79 | -19 | 3.07 |
All temperatures are reported in Fahrenheit. All precipitation is reported in inches.