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St. Louis (MO)
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United States weather

Weather in St. Louis, Missouri for January 2026

Your guide to St. Louis weather in January - trends and predictions

    Official Weather Alert ⚠️

  • Cold Weather Advisory - See hour by hour.

    • Snow Forecast ❄️

  • St. Louis typically experiences moderate snowfall in January, with an average of 9 snowy days.
    According to St. Louis snow forecast for January 2026, 1 snowy day is expected until the end of the month at Saturday, January 31.

    • Temperatures

  • Until now, January 2026 in St. Louis has been nearly identical to the historical average, with a temperature of 4.3 °F (showing only a slight deviation of 0.5 °F).

  • The forecast for the next days in St. Louis predicts the temperature to be 1.3 °F, significantly warmer than the historical average.

  • In general, the average temperature in St. Louis at the beginning of January is 5.1 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of -1.4 °F by the end of January.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
12
Dry days
Average rainy days
10
Rainy days
Average snowy days
9
Snow days
Average temperatures
4°/-3°
Temperatures
Average wind speed
20 km/h
Avg max wind
Average humidity
73 %
Avg humidity

St. Louis Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate or heavy rain shower
7°
2
Overcast
5°
3
Overcast
7°
4
Overcast
5°
5
Sunny
5°
6
Cloudy
4°
7
Overcast
3°
8
Overcast
4°
9
Overcast
7°
10
Overcast
5°
11
Overcast
6°
12
Sunny
8°
13
Overcast
5°
14
Overcast
2°
15
Sunny
1°
16
Overcast
3°
17
Overcast
3°
18
Patchy rain possible
5°
19
Overcast
1°
20
Sunny
0°
21
Sunny
2°
22
Overcast
2°
23
Partly cloudy
2°
24
Patchy rain possible
3°
25
Partly cloudy
2°
26
Overcast
2°
27
Moderate snow
5°
28
Weather Alert Sunny
-1°
29
Overcast
-4°
30
Sunny
-6°
31
Light freezing rain
-8°

Temperatures trend during January in St. Louis

See the weather trend as well as the moving average line

January weather in St. Louis day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Moderate or heavy rain shower
Moderate or heavy rain shower
 7° /0° 6 mm 0.7 cm
Jan. 2 Overcast
Overcast
 5° /-1° 1.2 mm 0 cm
Jan. 3 Overcast
Overcast
 7° /-1° 2.5 mm 0 cm
Jan. 4 Overcast
Overcast
 5° /-1° 0 mm 0 cm
Jan. 5 Sunny
Sunny
 5° /-2° 10.8 mm 7.8 cm
Jan. 6 Cloudy
Cloudy
 4° /-3° 3.3 mm 1.1 cm
Jan. 7 Overcast
Overcast
 3° /-4° 0.4 mm 0 cm
Jan. 8 Overcast
Overcast
 4° /-4° 5.1 mm 0 cm
Jan. 9 Overcast
Overcast
 7° /-2° 5.7 mm 0.2 cm
Jan. 10 Overcast
Overcast
 5° /-2° 1.4 mm 0.8 cm
Jan. 11 Overcast
Overcast
 6° /-1° 0.2 mm 0 cm
Jan. 12 Sunny
Sunny
 8° /-2° 6.7 mm 0 cm
Jan. 13 Overcast
Overcast
 5° /-4° 0.1 mm 0 cm
Jan. 14 Overcast
Overcast
 2° /-5° 1.3 mm 0 cm
Jan. 15 Sunny
Sunny
 1° /-6° 2.2 mm 0.6 cm
Jan. 16 Overcast
Overcast
 3° /-3° 0.5 mm 0 cm
Jan. 17 Overcast
Overcast
 3° /-3° 3.9 mm 0 cm
Jan. 18 Patchy rain possible
Patchy rain possible
 5° /-3° 7.6 mm 0.1 cm
Jan. 19 Overcast
Overcast
 1° /-7° 0.1 mm 0 cm
Jan. 20 Sunny
Sunny
 0° /-9° 0 mm 0 cm
Jan. 21 Sunny
Sunny
 2° /-6° 0.2 mm 0 cm
Jan. 22 Overcast
Overcast
 2° /-5° 2 mm 0 cm
Jan. 23 Partly cloudy
Partly cloudy
 2° /-5° 1.7 mm 0 cm
Jan. 24 Patchy rain possible
Patchy rain possible
 3° /-5° 5 mm 1.1 cm
Jan. 25 Partly cloudy
Partly cloudy
 2° /-3° 13.4 mm 3.4 cm
Jan. 26 Overcast
Overcast
 2° /-5° 0 mm 0 cm
Jan. 27 Moderate snow
Moderate snow
 5° /-5° 1.1 mm 0.5 cm
Jan. 28 Sunny
Sunny
 -1° /-20° 0 mm 0 cm
Jan. 29 Overcast
Overcast
 -4° /-10° 0 mm 0 cm
Jan. 30 Sunny
Sunny
 -6° /-14° 0 mm 0 cm
Jan. 31 Light freezing rain
Light freezing rain
 -8° /-17° 0.2 mm 0.1 cm
Next
Important Notice
Our weather forecast for St. Louis 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 St. Louis forecast closer to your planned date for the most up-to-date weather information.
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St. Louis in January - FAQ

What are the expected maximum and minimum temperatures in St. Louis during January?

Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in St. Louis during January?

Significant rainfall exceeding 101.2 mm is expected in St. Louis during January, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.

Will it snow in St. Louis in January 2026?

St. Louis experiences an average snowfall of 14.996 cm during January, occurring over 9 days.

What are the typical wind conditions in St. Louis during January?

The average wind speed in St. Louis during January is 20 km/h, suggesting breezy to windy conditions, depending on your activities.

St. Louis snow forecast January 2026

Track daily snowfall levels and discover St. Louis’s snowy potential this January ❄️
On average, St. Louis sees 9 snowy days during January, with approximately 15 cm of total snowfall.

January rainfall patterns in St. Louis

Explore the daily rainfall trends and prepare for St. Louiss January weather 💧
Typically, St. Louis has 10 rainy days in January with a total of 101.2 mm of rainfall.

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Location coordinates Where is St. Louis?

Get accurate weather forecasts for St. Louis, located at latitude 38.627 and longitude -90.198. Stay updated with localized weather information tailored for St. Louis.

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