5-day weather forecast Petersburg 21-03-2026
Weather forecast Petersburg Saturday 21 March 21.03.2026: partly cloudy, temperature from 10 °C to 21 °C.
Precipitation probability 100%. Wind up to 5.19 m/s (gusts 8.53 m/s). Air humidity 48–94%, atmospheric pressure 758–761 mm Hg, UV index up to 5.5.
Sunrise 07:17
Sunset 19:20
Sunset 19:20
Chart
Table
Type of temperature:
°C
°F| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Partly cloudy | 10 °C | 0% | 65% | 67% | 761 mm Hg | SSW 198° 4.61 (8.08) m/s | 0 |
| 01:00 | Partly cloudy | 10 °C | 0% | 82% | 67% | 760 mm Hg | SSW 200° 4.5 (7.78) m/s | 0 |
| 02:00 |  Overcast | 11 °C | 0% | 99% | 68% | 760 mm Hg | SSW 207° 4.61 (7.61) m/s | 0 |
| 03:00 |  Light rain | 11 °C | 100% (0.93 mm/hr) | 100% | 86% | 759 mm Hg | SSW 211° 5.19 (8.53) m/s | 0 |
| 04:00 |  Light drizzle | 11 °C | 100% (0.66 mm/hr) | 75% | 92% | 758 mm Hg | SSW 211° 5.19 (8.14) m/s | 0 |
| 05:00 | Light drizzle | 11 °C | 100% (0.41 mm/hr) | 80% | 93% | 758 mm Hg | SSW 207° 5.11 (7.78) m/s | 0 |
| 06:00 |  Thundery outbreaks possible | 11 °C | 100% (0.1 mm/hr) | 58% | 93% | 758 mm Hg | SSW 206° 5.19 (8.06) m/s | 0 |
| 07:00 | Thundery outbreaks possible | 11 °C | 58% (0.02 mm/hr) | 72% | 93% | 758 mm Hg | SW 214° 4.69 (7.58) m/s | 0 |
| 08:00 |  Patchy light drizzle | 12 °C | 100% (0.41 mm/hr) | 89% | 94% | 758 mm Hg | SW 229° 3.81 (5.86) m/s | 0 |
| 09:00 |  Cloudy | 14 °C | 0% | 80% | 89% | 758 mm Hg | SW 236° 3.61 (4.78) m/s | 0.8 |
| 10:00 |  Sunny | 16 °C | 0% | 12% | 83% | 758 mm Hg | WSW 238° 4.19 (5.28) m/s | 2.1 |
| 11:00 |  Partly cloudy | 18 °C | 0% | 27% | 74% | 758 mm Hg | W 268° 3.61 (4.14) m/s | 3.5 |
| 12:00 |  Patchy rain possible | 20 °C | 100% (0.33 mm/hr) | 87% | 63% | 758 mm Hg | WNW 296° 4.19 (4.83) m/s | 4.8 |
| 13:00 | Patchy rain possible | 21 °C | 100% (0.05 mm/hr) | 79% | 54% | 758 mm Hg | NW 310° 3.89 (4.78) m/s | 5.5 |
| 14:00 | Patchy rain possible | 20 °C | 81% (0.03 mm/hr) | 100% | 48% | 758 mm Hg | NW 316° 3.89 (4.5) m/s | 4.9 |
| 15:00 | Partly cloudy | 20 °C | 0% | 57% | 62% | 758 mm Hg | NNW 336° 2.5 (3.92) m/s | 4.1 |
| 16:00 | Partly cloudy | 21 °C | 0% | 44% | 57% | 758 mm Hg | NNE 20° 1.5 (2.08) m/s | 2.6 |
| 17:00 | Partly cloudy | 20 °C | 0% | 42% | 53% | 758 mm Hg | NE 38° 2.11 (2.64) m/s | 1.2 |
| 18:00 | Partly cloudy | 18 °C | 0% | 41% | 62% | 758 mm Hg | NE 47° 2.5 (3.58) m/s | 0.4 |
| 19:00 | Partly cloudy | 16 °C | 0% | 32% | 74% | 758 mm Hg | ENE 61° 2.19 (4.33) m/s | 0 |
| 20:00 | Partly cloudy | 15 °C | 0% | 26% | 80% | 758 mm Hg | ENE 75° 1.69 (3.58) m/s | 0 |
| 21:00 | Partly cloudy | 14 °C | 0% | 26% | 82% | 759 mm Hg | ESE 106° 1.61 (3.36) m/s | 0 |
| 22:00 |  Clear | 12 °C | 0% | 12% | 86% | 760 mm Hg | ESE 118° 1.81 (3.78) m/s | 0 |
| 23:00 | Partly cloudy | 12 °C | 0% | 30% | 66% | 761 mm Hg | SE 130° 2 (4.19) m/s | 0 |
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.