5-day weather forecast Petersburg 17-08-2026

Weather forecast Petersburg Monday, August 17 17.08.2026: partly cloudy, temperature from 25 °C to 36 °C.

Precipitation probability 17%. Wind up to 4.39 m/s (gusts 7.42 m/s). Air humidity 33–91%, atmospheric pressure 757–760 mm Hg, UV index up to 9.1.

Sunrise 06:27
Sunset 19:59
Waxing Crescent27% illuminated
Moonrise 11:51 · Moonset 22:29
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Table

Forecast from 25 °C to 36 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)252626262625252526293133343536363636343029282727
Precipitation (mm/hr)000000000000000000000000

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)332818991428453647298102532241816153033164543
Rain chance (%)171615131211131413842222211255487

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)4.314.314.394.113.813.392.612.392.193.113.313.393.393.393.1132.892.53.313.693.112.191.812
Wind gust (m/s)7.257.037.427.196.926.535.475.034.2543.813.923.923.923.583.443.333.064.756.535.444.333.673.89
Wind direction (°)S 170°S 185°SSW 199°SSW 210°SW 223°SW 232°WSW 240°WSW 240°W 260°WNW 292°NW 313°NW 310°NW 307°NW 316°NW 317°NW 309°WNW 301°NW 305°NNE 15°NE 42°NE 43°ENE 66°ENE 69°NE 35°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)919090888683838281665650454138353334445758626664

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)759759758758758758758758758758758759758758758758757757758758758759760760

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index00000000.10.71.946.38.29.18.65.81.91.30.90.20000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)6.16.77.68.59.19.59.910.210.911.310.66.94.74.13.93.93.944.16.19.31212.711.1
PM10 (µg/m³)6.26.87.98.89.510.110.410.811.41211.37.354.3444.14.24.26.29.41212.811.1
Ozone (O₃) (µg/m³)8884797265595450536787103109110110112112108957865605958
NO₂ (µg/m³)3.73.53.33.23.23.23.53.83.83.12.21.41.1110.60.31.24.58.912.514.214.915.4
SO₂ (µg/m³)0.50.60.60.60.70.70.70.70.811.21.31.31.21.110.90.90.911.11.31.51.7
CO (µg/m³)149140133131132133134136137138138136131124119113109117146188230270311340

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.