5-day weather forecast St. Petersburg Sep 28, 2026
28°Weather forecast St. Petersburg Monday Sep 28, 2026: overcast, temperature from 25 °C to 28 °C.
Precipitation probability 13%. Wind up to 3.5 m/s (gusts 8.11 m/s). Air humidity 43–57%, atmospheric pressure 759–762 mm Hg, UV index up to 8.4.
5 days at a glance — tap a day to open it
Sunrise 07:22
Sunset 19:20
Sunset 19:20
Waning Gibbous91% illuminated
Moonrise 20:22 · Moonset 09:09
Moonrise 20:22 · Moonset 09:09
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 26 °C | 10% | 96% | 45% | 761 mm Hg | W 273° 1 (5) m/s | 0 |
| 01:00 | Overcast | 26 °C | 10% | 99% | 45% | 760 mm Hg | WNW 303° 0.89 (4.89) m/s | 0 |
| 02:00 | Overcast | 26 °C | 11% | 100% | 45% | 760 mm Hg | NW 323° 0.5 (5.5) m/s | 0 |
| 03:00 |  Clear | 26 °C | 1% | 6% | 46% | 760 mm Hg | NNW 344° 0.61 (3.61) m/s | 0 |
| 04:00 | Clear | 26 °C | 1% | 5% | 46% | 760 mm Hg | N 355° 0.81 (4.81) m/s | 0 |
| 05:00 | Overcast | 26 °C | 11% | 100% | 46% | 760 mm Hg | NE 44° 0.61 (4.61) m/s | 0 |
| 06:00 | Overcast | 26 °C | 10% | 96% | 48% | 760 mm Hg | E 99° 1.5 (5.5) m/s | 0 |
| 07:00 |  Cloudy | 26 °C | 9% | 76% | 52% | 761 mm Hg | ESE 116° 2.61 (6.61) m/s | 0 |
| 08:00 | Overcast | 25 °C | 13% | 99% | 56% | 761 mm Hg | SE 125° 2.61 (6.61) m/s | 0 |
| 09:00 | Overcast | 25 °C | 13% | 100% | 57% | 761 mm Hg | SE 131° 2.19 (5.19) m/s | 0.8 |
| 10:00 | Overcast | 26 °C | 13% | 100% | 56% | 761 mm Hg | SE 134° 2.11 (6.11) m/s | 2.3 |
| 11:00 | Overcast | 26 °C | 11% | 88% | 55% | 762 mm Hg | SE 145° 1.89 (5.89) m/s | 4.4 |
| 12:00 |  Partly cloudy | 26 °C | 5% | 42% | 53% | 762 mm Hg | SSE 168° 1.39 (6.39) m/s | 6.6 |
| 13:00 | Partly cloudy | 27 °C | 5% | 40% | 53% | 761 mm Hg | SSW 193° 1.69 (5.69) m/s | 8.3 |
| 14:00 | Partly cloudy | 27 °C | 4% | 34% | 53% | 761 mm Hg | SSW 212° 2.31 (7.31) m/s | 8.4 |
| 15:00 |  Sunny | 27 °C | 2% | 3% | 54% | 761 mm Hg | SW 225° 2.81 (5.81) m/s | 7 |
| 16:00 | Sunny | 28 °C | 2% | 5% | 53% | 760 mm Hg | SW 235° 3.11 (8.11) m/s | 4.7 |
| 17:00 | Sunny | 28 °C | 2% | 5% | 52% | 760 mm Hg | WSW 244° 3.5 (6.5) m/s | 2.4 |
| 18:00 | Partly cloudy | 28 °C | 3% | 34% | 43% | 759 mm Hg | WSW 258° 3.11 (7.11) m/s | 0.8 |
| 19:00 | Overcast | 28 °C | 10% | 97% | 44% | 760 mm Hg | W 263° 3.11 (6.11) m/s | 0.1 |
| 20:00 | Overcast | 28 °C | 10% | 100% | 44% | 760 mm Hg | W 265° 2.81 (5.81) m/s | 0 |
| 21:00 | Overcast | 28 °C | 11% | 100% | 46% | 760 mm Hg | W 265° 2.69 (5.69) m/s | 0 |
| 22:00 | Overcast | 28 °C | 11% | 100% | 47% | 761 mm Hg | W 263° 2.89 (7.89) m/s | 0 |
| 23:00 | Overcast | 28 °C | 11% | 100% | 47% | 761 mm Hg | WSW 257° 2.61 (7.61) 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.