5-day weather forecast St. Louis 19-08-2026
Weather forecast St. Louis tomorrow 19.08.2026: overcast, temperature from 20 °C to 27 °C.
Precipitation probability 55%. Wind up to 6.61 m/s (gusts 9.44 m/s). Air humidity 62–95%, atmospheric pressure 759–762 mm Hg, UV index up to 7.3.
5 days at a glance — tap a day to open it
Sunrise 06:18
Sunset 19:50
Sunset 19:50
First Quarter48% illuminated
Moonrise 14:04 · Moonset 23:27
Moonrise 14:04 · Moonset 23:27
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 24 °C | 6% | 1% | 70% | 760 mm Hg | SE 144° 3.31 (9.44) m/s | 0 |
| 01:00 | Clear | 24 °C | 7% | 0% | 73% | 760 mm Hg | SE 138° 2.11 (6.03) m/s | 0 |
| 02:00 | Clear | 23 °C | 7% | 2% | 73% | 760 mm Hg | S 169° 1.89 (5.61) m/s | 0 |
| 03:00 |  Cloudy | 23 °C | 16% | 77% | 74% | 761 mm Hg | SSW 204° 2.31 (5.61) m/s | 0 |
| 04:00 |  Patchy rain possible | 23 °C | 20% (0.02 mm/hr) | 100% | 70% | 761 mm Hg | WSW 251° 1.89 (5.31) m/s | 0 |
| 05:00 |  Light rain shower | 23 °C | 47% (0.28 mm/hr) | 100% | 86% | 761 mm Hg | SW 219° 1.11 (1.31) m/s | 0 |
| 06:00 | Light rain shower | 23 °C | 34% (0.2 mm/hr) | 100% | 75% | 761 mm Hg | ESE 104° 1.61 (2.5) m/s | 0 |
| 07:00 |  Patchy rain possible | 22 °C | 34% (0.05 mm/hr) | 100% | 89% | 761 mm Hg | ENE 68° 2.19 (4.89) m/s | 0.1 |
| 08:00 |  Light rain shower | 21 °C | 55% (0.33 mm/hr) | 100% | 93% | 762 mm Hg | NNE 14° 2.39 (6.53) m/s | 0.1 |
| 09:00 | Patchy rain possible | 20 °C | 55% (0.45 mm/hr) | 72% | 95% | 761 mm Hg | ENE 63° 2.81 (7.31) m/s | 1.4 |
| 10:00 | Light rain shower | 22 °C | 54% (0.43 mm/hr) | 100% | 84% | 760 mm Hg | ENE 72° 4.61 (7.81) m/s | 1.2 |
| 11:00 |  Cloudy | 21 °C | 27% | 83% | 92% | 761 mm Hg | E 90° 3.5 (7.89) m/s | 2.5 |
| 12:00 | Light rain shower | 23 °C | 39% (0.34 mm/hr) | 81% | 79% | 761 mm Hg | E 101° 3.89 (5.89) m/s | 2.2 |
| 13:00 | Light rain shower | 26 °C | 32% (0.28 mm/hr) | 96% | 66% | 759 mm Hg | ESE 117° 6.61 (8.83) m/s | 7.3 |
| 14:00 |  Overcast | 26 °C | 16% | 100% | 65% | 759 mm Hg | E 100° 4.31 (5.61) m/s | 3.9 |
| 15:00 | Overcast | 27 °C | 14% | 92% | 62% | 760 mm Hg | ESE 104° 3.39 (3.89) m/s | 2.5 |
| 16:00 | Overcast | 26 °C | 14% | 90% | 64% | 759 mm Hg | E 88° 4.31 (4.31) m/s | 1.4 |
| 17:00 |  Partly cloudy | 26 °C | 10% | 61% | 66% | 759 mm Hg | E 88° 3.19 (3.81) m/s | 1 |
| 18:00 | Overcast | 27 °C | 14% | 92% | 66% | 759 mm Hg | ENE 75° 3.5 (4.5) m/s | 0.7 |
| 19:00 | Cloudy | 25 °C | 18% | 83% | 76% | 759 mm Hg | ENE 61° 4.81 (6.19) m/s | 0.2 |
| 20:00 |  Overcast | 23 °C | 25% | 100% | 82% | 759 mm Hg | ENE 68° 3.11 (6.69) m/s | 0 |
| 21:00 | Overcast | 23 °C | 27% | 100% | 86% | 760 mm Hg | ENE 59° 2.69 (6.22) m/s | 0 |
| 22:00 |  Partly cloudy | 22 °C | 18% | 56% | 87% | 760 mm Hg | NE 56° 2.81 (6.33) m/s | 0 |
| 23:00 | Clear | 22 °C | 13% | 5% | 88% | 761 mm Hg | ENE 69° 2.39 (5.42) m/s | 0 |
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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.