St. Louis weather by month
The best time to visit St. Louis, United States is May. Pick a month for full climate normals and a verdict.
- Januarycold, rainy, clean air54tier D
- Februarycold, a little rain, clean air61tier C
- Marchcool, rainy, clean air72tier B
- Aprilnice, rainy, clean air84tier A
- Maywarm, rainy90tier S
- Junehot, rainy82tier A
- Julyhot, rainy70tier B
- Augusthot, rainy71tier B
- Septemberwarm, a little rain, clean air89tier A
- Octobernice, rainy, clean air83tier A
- Novembercool, a little rain, clean air75tier B
- Decembercold, a little rain, clean air65tier C