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The weather in St. Louis in January is very cold with temperatures between -7°C and -1°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in St. Louis during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Let it snow! You can expect St. Louis to be covered in white during the month of January. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in St. Louis in January 2025.
If you’re planning to visit St. Louis in the near future, we highly recommend that you review the 14 day weather forecast for St. Louis before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -1° / -7° | 6 | 8 | 17 | 104 mm | Awful | St. Louis in January |
| February | 1° / -6° | 6 | 7 | 15 | 104 mm | Awful | St. Louis in February |
| March | 8° / 0° | 9 | 13 | 9 | 131 mm | Awful | St. Louis in March |
| April | 14° / 5° | 10 | 17 | 3 | 161 mm | Bad | St. Louis in April |
| May | 21° / 12° | 10 | 21 | 0 | 179 mm | Ok | St. Louis in May |
| June | 25° / 16° | 9 | 21 | 0 | 184 mm | Good | St. Louis in June |
| July | 27° / 17° | 9 | 22 | 0 | 165 mm | Good | St. Louis in July |
| August | 26° / 16° | 7 | 24 | 0 | 138 mm | Good | St. Louis in August |
| September | 23° / 13° | 6 | 24 | 0 | 109 mm | Perfect | St. Louis in September |
| October | 17° / 8° | 6 | 24 | 1 | 120 mm | Good | St. Louis in October |
| November | 9° / 2° | 7 | 18 | 5 | 107 mm | Awful | St. Louis in November |
| December | 3° / -2° | 8 | 11 | 12 | 102 mm | Awful | St. Louis in December |