5-day weather forecast Petersburg Oct 18, 2026
17°Weather forecast Petersburg Sunday Oct 18, 2026: sunny, temperature from 4 °C to 17 °C.
Precipitation probability 11%. Wind up to 3 m/s (gusts 9.42 m/s). Air humidity 31–85%, atmospheric pressure 774–778 mm Hg, UV index up to 4.7.
5 days at a glance — tap a day to open it
Sunrise 07:20
Sunset 18:29
Sunset 18:29
First Quarter58% illuminated
Moonrise 14:50 · Moonset does not set today
Moonrise 14:50 · Moonset does not set today
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 6 °C | 3% | 0% | 56% | 774 mm Hg | NNE 21° 2.31 (7.81) m/s | 0 |
| 01:00 | Clear | 6 °C | 3% | 0% | 54% | 775 mm Hg | NNE 15° 2.61 (9.42) m/s | 0 |
| 02:00 | Clear | 6 °C | 3% | 0% | 52% | 775 mm Hg | NNE 12° 2.39 (7.11) m/s | 0 |
| 03:00 | Clear | 5 °C | 3% | 0% | 55% | 776 mm Hg | N 10° 2.11 (5.81) m/s | 0 |
| 04:00 | Clear | 5 °C | 3% | 0% | 57% | 776 mm Hg | N 3° 2 (3.42) m/s | 0 |
| 05:00 | Clear | 4 °C | 3% | 0% | 59% | 776 mm Hg | N 4° 2.19 (5) m/s | 0 |
| 06:00 | Clear | 4 °C | 4% | 0% | 61% | 776 mm Hg | N 10° 2.31 (6) m/s | 0 |
| 07:00 | Clear | 4 °C | 4% | 0% | 63% | 776 mm Hg | N 10° 2.31 (6.31) m/s | 0 |
| 08:00 | Sunny | 5 °C | 4% | 0% | 63% | 777 mm Hg | NNE 18° 2.19 (7.53) m/s | 0 |
| 09:00 | Sunny | 8 °C | 2% | 0% | 51% | 778 mm Hg | NNE 31° 3 (7.11) m/s | 0.5 |
| 10:00 | Sunny | 10 °C | 1% | 0% | 42% | 778 mm Hg | NE 40° 3 (5.31) m/s | 1.5 |
| 11:00 | Sunny | 12 °C | 1% | 0% | 36% | 778 mm Hg | NE 52° 3 (4.61) m/s | 2.9 |
| 12:00 | Sunny | 14 °C | 1% | 0% | 33% | 777 mm Hg | ENE 64° 2.5 (3.61) m/s | 4.1 |
| 13:00 | Sunny | 15 °C | 1% | 0% | 31% | 777 mm Hg | ENE 77° 2 (2.94) m/s | 4.7 |
| 14:00 | Sunny | 16 °C | 1% | 0% | 31% | 776 mm Hg | ENE 76° 1.89 (2.89) m/s | 4.4 |
| 15:00 | Sunny | 17 °C | 1% | 0% | 32% | 776 mm Hg | E 79° 1.81 (2.89) m/s | 3.3 |
| 16:00 | Sunny | 17 °C | 1% | 0% | 34% | 775 mm Hg | E 90° 2 (3.22) m/s | 2 |
| 17:00 | Sunny | 17 °C | 1% | 0% | 41% | 775 mm Hg | ESE 104° 2.39 (3.22) m/s | 0.8 |
| 18:00 | Sunny | 13 °C | 3% | 0% | 59% | 776 mm Hg | ESE 118° 2.19 (4.61) m/s | 0.2 |
| 19:00 | Clear | 10 °C | 6% | 0% | 70% | 776 mm Hg | SE 124° 2.39 (5.83) m/s | 0 |
| 20:00 | Clear | 10 °C | 7% | 0% | 74% | 776 mm Hg | ESE 120° 2.19 (5.11) m/s | 0 |
| 21:00 | Clear | 9 °C | 9% | 0% | 79% | 776 mm Hg | ESE 113° 2 (2.92) m/s | 0 |
| 22:00 | Clear | 8 °C | 10% | 0% | 82% | 776 mm Hg | ESE 111° 1.81 (1.81) m/s | 0 |
| 23:00 | Clear | 8 °C | 11% | 0% | 85% | 776 mm Hg | ESE 119° 1.61 (1.61) 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.