5-day weather forecast London Sep 23, 2026
23°Weather forecast London Wednesday Sep 23, 2026: patchy rain possible, temperature from 15 °C to 23 °C.
Precipitation probability 20%. Wind up to 5.19 m/s (gusts 8.22 m/s). Air humidity 42–72%, atmospheric pressure 769–773 mm Hg, UV index up to 3.1.
5 days at a glance — tap a day to open it
Sunrise 06:48
Sunset 18:57
Sunset 18:57
Waxing Gibbous95% illuminated
Moonrise 17:55 · Moonset 03:04
Moonrise 17:55 · Moonset 03:04
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 19 °C | 13% (0.01 mm/hr) | 66% | 72% | 770 mm Hg | S 178° 2.61 (5.42) m/s | 0 |
| 01:00 | Patchy rain possible | 19 °C | 20% (0.01 mm/hr) | 100% | 72% | 770 mm Hg | S 178° 2.31 (4.89) m/s | 0 |
| 02:00 |  Overcast | 18 °C | 18% | 95% | 72% | 770 mm Hg | S 180° 2 (3.89) m/s | 0 |
| 03:00 | Patchy rain possible | 18 °C | 20% (0.01 mm/hr) | 100% | 72% | 770 mm Hg | S 184° 2.11 (4.19) m/s | 0 |
| 04:00 | Overcast | 18 °C | 19% | 100% | 72% | 770 mm Hg | S 184° 1.89 (4.11) m/s | 0 |
| 05:00 | Overcast | 18 °C | 19% | 100% | 72% | 770 mm Hg | SSW 194° 2 (4.92) m/s | 0 |
| 06:00 | Overcast | 18 °C | 19% | 100% | 72% | 769 mm Hg | SSW 192° 2 (5.31) m/s | 0 |
| 07:00 | Patchy rain possible | 18 °C | 20% (0.01 mm/hr) | 100% | 72% | 769 mm Hg | SSW 198° 2.11 (6.11) m/s | 0 |
| 08:00 |  Overcast | 18 °C | 19% | 100% | 71% | 769 mm Hg | SSW 210° 2.19 (6.22) m/s | 0.2 |
| 09:00 | Patchy rain possible | 19 °C | 19% (0.01 mm/hr) | 100% | 70% | 770 mm Hg | SW 232° 2.61 (6.5) m/s | 0.6 |
| 10:00 | Patchy rain possible | 19 °C | 20% (0.03 mm/hr) | 100% | 69% | 770 mm Hg | WSW 237° 2.89 (6) m/s | 1.2 |
| 11:00 | Overcast | 20 °C | 15% | 100% | 63% | 770 mm Hg | W 261° 3.19 (5.92) m/s | 2.1 |
| 12:00 |  Cloudy | 21 °C | 9% | 70% | 57% | 770 mm Hg | W 280° 3.11 (4.83) m/s | 2.7 |
| 13:00 | Patchy rain possible | 22 °C | 10% (0.02 mm/hr) | 78% | 54% | 769 mm Hg | WNW 300° 3.31 (4.92) m/s | 3 |
| 14:00 | Patchy rain possible | 23 °C | 13% (0.05 mm/hr) | 86% | 50% | 769 mm Hg | NW 308° 2.89 (4.39) m/s | 3.1 |
| 15:00 | Overcast | 23 °C | 9% | 89% | 45% | 769 mm Hg | NW 310° 3.69 (4.61) m/s | 2.4 |
| 16:00 | Patchy rain possible | 23 °C | 11% (0.02 mm/hr) | 96% | 42% | 769 mm Hg | NW 320° 4.19 (4.81) m/s | 1.5 |
| 17:00 | Overcast | 22 °C | 10% | 95% | 44% | 769 mm Hg | NNW 335° 5.19 (8.19) m/s | 0.7 |
| 18:00 |  Partly cloudy | 21 °C | 5% | 45% | 49% | 770 mm Hg | NNW 340° 4.69 (5.5) m/s | 0.2 |
| 19:00 | Patchy rain possible | 20 °C | 6% (0.01 mm/hr) | 50% | 52% | 770 mm Hg | NNW 340° 4.31 (6.31) m/s | 0 |
| 20:00 |  Clear | 19 °C | 3% | 22% | 51% | 770 mm Hg | NNW 348° 4.19 (6.89) m/s | 0 |
| 21:00 | Overcast | 17 °C | 15% | 100% | 60% | 771 mm Hg | NNE 30° 4.31 (7) m/s | 0 |
| 22:00 | Clear | 16 °C | 5% | 13% | 64% | 772 mm Hg | NE 45° 4.39 (7.42) m/s | 0 |
| 23:00 | Clear | 15 °C | 4% | 5% | 61% | 773 mm Hg | NE 52° 4.11 (8.22) m/s | 0 |
London 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.