5-day weather forecast St. Louis 30-07-2026

Weather forecast St. Louis tomorrow 30.07.2026: sunny, temperature from 18 °C to 30 °C.

Precipitation probability 13%. Wind up to 4.5 m/s (gusts 6.92 m/s). Air humidity 39–89%, atmospheric pressure 761–764 mm Hg, UV index up to 9.2.

Sunrise 06:00
Sunset 20:13
Waning Gibbous96% illuminated
Moonrise 21:05 · Moonset 07:07
Chart
Table

Forecast from 18 °C to 30 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)202019191918181921242627292930303030292725242322
Precipitation (mm/hr)000000000000000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)0000004114832879156398193245328
Rain chance (%)111212121212131174331111151146775

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)2.3922.11221.892.312.112.312.693.113.313.313.53.694.114.314.53.893.393.193.313.113.19
Wind gust (m/s)5.034.194.424.194.1944.833.973.173.193.583.813.814.034.254.724.945.285.425.786.396.926.56.72
Wind direction (°)E 84°E 92°E 85°E 98°E 99°E 100°E 97°ESE 102°SE 124°SE 129°SE 132°SE 134°SE 133°SE 130°ESE 119°ESE 113°ESE 113°ESE 114°ESE 113°ESE 112°ESE 112°ESE 113°SE 130°SE 144°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)858687888888898575655548444139393942505863646768

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)762762762762763763763763764764764764764763762762762761761761761761761761

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index00000000.312.54.56.68.49.28.66.94.72.510.30000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)4.13.83.53.43.33.23.12.933.34.15.266.26.36.36.46.56.56.86.86.25.75.2
PM10 (µg/m³)4.23.83.53.43.43.23.1333.44.15.36.16.46.46.46.56.76.7776.45.85.4
Ozone (O₃) (µg/m³)45434141403735395476951081191261291291251161049282726460
NO₂ (µg/m³)1817.917.61716.315.815.113.710.87.24.32.92.42.11.71.62.44.67.710.311.913.113.713.5
SO₂ (µg/m³)1.41.31.31.31.31.21.21.21.41.722.42.93.23.232.82.72.72.52.11.51.10.9
CO (µg/m³)184176173173174178185188186181175168160152145139136136140146157171182186

St. Louis on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.