5-day weather forecast Petersburg 18-05-2026
Weather forecast Petersburg tomorrow 18.05.2026: sunny, temperature from 20 °C to 34 °C.
Precipitation probability 60%. Wind up to 4.61 m/s (gusts 8.03 m/s). Air humidity 32–97%, atmospheric pressure 766–768 mm Hg, UV index up to 9.2.
Sunrise 05:59
Sunset 20:14
Sunset 20:14
Waxing Crescent2% illuminated
Moonrise 07:09 · Moonset 23:00
Moonrise 07:09 · Moonset 23:00
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 22 °C | 0% | 19% | 81% | 766 mm Hg | S 184° 2.11 (4.42) m/s | 0 |
| 01:00 | Clear | 22 °C | 0% | 21% | 81% | 766 mm Hg | SSW 196° 3 (6.17) m/s | 0 |
| 02:00 | Clear | 22 °C | 0% | 21% | 82% | 767 mm Hg | SSW 210° 3.39 (6.28) m/s | 0 |
| 03:00 | Clear | 21 °C | 0% | 19% | 85% | 767 mm Hg | SW 217° 3.11 (5.67) m/s | 0 |
| 04:00 |  Patchy rain possible | 21 °C | 60% (0.03 mm/hr) | 76% | 88% | 767 mm Hg | SSW 210° 2.89 (5.42) m/s | 0 |
| 05:00 | Clear | 20 °C | 0% | 12% | 94% | 767 mm Hg | SSW 194° 2.31 (4.67) m/s | 0 |
| 06:00 |  Fog | 20 °C | 0% | 100% | 97% | 767 mm Hg | S 188° 2.31 (4.83) m/s | 0 |
| 07:00 |  Sunny | 22 °C | 0% | 15% | 92% | 767 mm Hg | SSW 201° 2.69 (4.89) m/s | 0.2 |
| 08:00 | Sunny | 24 °C | 0% | 12% | 80% | 768 mm Hg | SW 229° 3.39 (4.47) m/s | 0.9 |
| 09:00 | Sunny | 26 °C | 0% | 6% | 67% | 768 mm Hg | WSW 237° 3.39 (3.92) m/s | 2.3 |
| 10:00 | Sunny | 28 °C | 0% | 6% | 58% | 768 mm Hg | SW 229° 3.31 (3.81) m/s | 4.4 |
| 11:00 | Sunny | 30 °C | 0% | 7% | 50% | 767 mm Hg | SW 228° 3.39 (3.92) m/s | 6.6 |
| 12:00 | Sunny | 32 °C | 0% | 7% | 44% | 767 mm Hg | SW 221° 3.61 (4.14) m/s | 8.4 |
| 13:00 |  Thundery outbreaks possible | 33 °C | 0% | 29% | 40% | 767 mm Hg | SW 214° 3.69 (4.25) m/s | 9.2 |
| 14:00 | Thundery outbreaks possible | 34 °C | 0% | 32% | 36% | 767 mm Hg | SSW 209° 3.61 (4.14) m/s | 8.8 |
| 15:00 | Sunny | 34 °C | 0% | 21% | 33% | 767 mm Hg | SSW 204° 3.89 (4.5) m/s | 7.3 |
| 16:00 | Sunny | 34 °C | 0% | 16% | 32% | 766 mm Hg | SSW 201° 4.19 (4.83) m/s | 5.1 |
| 17:00 | Sunny | 34 °C | 0% | 17% | 32% | 766 mm Hg | SSW 196° 4.61 (5.47) m/s | 3 |
| 18:00 | Sunny | 32 °C | 0% | 17% | 38% | 766 mm Hg | S 187° 4.5 (6.14) m/s | 1.3 |
| 19:00 | Sunny | 30 °C | 0% | 13% | 46% | 766 mm Hg | S 181° 4.61 (7.75) m/s | 0.4 |
| 20:00 | Sunny | 28 °C | 0% | 6% | 52% | 767 mm Hg | S 180° 4 (8.03) m/s | 0 |
| 21:00 | Clear | 26 °C | 0% | 4% | 54% | 767 mm Hg | S 185° 3.5 (7.36) m/s | 0 |
| 22:00 | Clear | 25 °C | 0% | 2% | 56% | 767 mm Hg | S 190° 3.5 (7.36) m/s | 0 |
| 23:00 | Clear | 24 °C | 0% | 2% | 58% | 767 mm Hg | S 187° 3.61 (7.56) m/s | 0 |
Petersburg 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.