Saint Louis County (Eureka)
January
Weather in Saint Louis County for January 2026
Your guide to Saint Louis County weather in January - trends and predictions
With an average of 3 snowy days, Saint Louis County usually enjoys a light touch of snow in January.
In general, the average temperature in Saint Louis County at the beginning of January is 0.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 6 °F by the end of January.
With an average of 3 rainy days, Saint Louis County experiences minimal rainfall in January.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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25
Dry days
3
Rainy days
3
Snow days
1°/-5°
Temperatures
17 km/h
Avg max wind
69 %
Avg humidity
Saint Louis County Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  5° | 2 6° | 3 4° | ||||
| 4 0° | 5  -1° | 6  -3° | 7  -5° | 8 -7° | 9  3° | 10 0° |
| 11 1° | 12  0° | 13 -2° | 14  0° | 15  1° | 16 0° | 17 5° |
| 18 4° | 19 -5° | 20 -6° | 21 -9° | 22 2° | 23 -2° | 24 0° |
| 25 5° | 26 0° | 27 8° | 28 7° | 29 7° | 30  7° | 31 8° |
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Temperatures trend during January in Saint Louis County
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 | Overcast | 5° /0° | 0 mm | 0 cm | |
| Jan. 2 | Overcast | 6° /0° | 0 mm | 0 cm | |
| Jan. 3 | Overcast | 4° /-1° | 0 mm | 0 cm | |
| Jan. 4 | Overcast | 0° /-3° | 0 mm | 0 cm | |
| Jan. 5 | Ice pellets | -1° /-3° | 81.3 mm | 58.8 cm | |
| Jan. 6 | Moderate snow | -3° /-9° | 20.5 mm | 14.8 cm | |
| Jan. 7 | Freezing fog | -5° /-18° | 0 mm | 0 cm | |
| Jan. 8 | Freezing fog | -7° /-19° | 0 mm | 0 cm | |
| Jan. 9 | Partly cloudy | 3° /-7° | 0 mm | 0 cm | |
| Jan. 10 | Moderate snow | 0° /-2° | 12.7 mm | 9.2 cm | |
| Jan. 11 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Jan. 12 | Fog | 0° /-3° | 0 mm | 0 cm | |
| Jan. 13 | Partly cloudy | -2° /-6° | 0 mm | 0 cm | |
| Jan. 14 | Cloudy | 0° /-6° | 0 mm | 0 cm | |
| Jan. 15 | Sunny | 1° /-9° | 0 mm | 0 cm | |
| Jan. 16 | Overcast | 0° /-1° | 0 mm | 0 cm | |
| Jan. 17 | Freezing fog | 5° /-2° | 18.7 mm | 0 cm | |
| Jan. 18 | Overcast | 4° /-6° | 9 mm | 0 cm | |
| Jan. 19 | Overcast | -5° /-11° | 0 mm | 0 cm | |
| Jan. 20 | Partly cloudy | -6° /-13° | 0 mm | 0 cm | |
| Jan. 21 | Sunny | -9° /-13° | 0 mm | 0 cm | |
| Jan. 22 | Overcast | 2° /-11° | 0 mm | 0 cm | |
| Jan. 23 | Overcast | -2° /-6° | 0 mm | 0 cm | |
| Jan. 24 | Sunny | 0° /-10° | 0 mm | 0 cm | |
| Jan. 25 | Cloudy | 5° /-2° | 0 mm | 0 cm | |
| Jan. 26 | Overcast | 0° /-3° | 0 mm | 0 cm | |
| Jan. 27 | Sunny | 8° /-4° | 0 mm | 0 cm | |
| Jan. 28 | Sunny | 7° /0° | 0 mm | 0 cm | |
| Jan. 29 | Cloudy | 7° /1° | 0 mm | 0 cm | |
| Jan. 30 | Moderate or heavy rain with thunder | 7° /4° | 12.6 mm | 0 cm | |
| Jan. 31 | Overcast | 8° /3° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Saint Louis County in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Saint Louis County forecast closer to your planned date for the most up-to-date weather information.
Saint Louis County in January - FAQ
What are the expected maximum and minimum temperatures in Saint Louis County during January?
Brace for cold days with temperatures not exceeding 1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Saint Louis County during January?
Significant rainfall exceeding 155 mm is expected in Saint Louis County during January, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Saint Louis County in January 2026?
Saint Louis County experiences an average snowfall of 82.8 cm during January, occurring over 3 days.
What are the typical wind conditions in Saint Louis County during January?
The average wind speed in Saint Louis County during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
Saint Louis County snow forecast January 2026
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January rainfall patterns in Saint Louis County
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Where is Saint Louis County?Get accurate weather forecasts for Saint Louis County, located at latitude 38.503 and longitude -90.628. Stay updated with localized weather information tailored for Saint Louis County.
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