5-day weather forecast Petersburg Sep 16, 2026

29°15° · Sunny

Weather forecast Petersburg tomorrow Sep 16, 2026: sunny, temperature from 15 °C to 29 °C.

Precipitation probability 30%. Wind up to 3.31 m/s (gusts 7.83 m/s). Air humidity 39–92%, atmospheric pressure 769–772 mm Hg, UV index up to 7.2.

Sunrise 06:52
Sunset 19:16
First Quarter32% illuminated
Moonrise 12:57 · Moonset 22:18
Chart
Table

Forecast from 15 °C to 29 °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)171616161615151517202325272829292928272321191918
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 (%)1001001009810072958215555523555455550
Rain chance (%)272828283024292711643211111246899

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)21.611.51.510.810.690.610.6911.111.311.191.311.611.811.891.691.693.312.612.312.312.11
Wind gust (m/s)6.111.751.531.531.110.890.690.6111.811.721.611.421.421.8122.422.52.927.537.837.337.426.61
Wind direction (°)SE 141°SSE 160°S 173°S 181°SSW 194°S 187°SSE 167°SE 143°SE 134°SE 138°SE 124°ESE 106°E 84°ENE 75°ENE 70°ENE 59°ENE 71°ENE 76°ESE 103°ESE 119°SE 124°ESE 120°SE 130°SE 142°

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 (%)858788899091919282706154484441393939506271757880

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)770770770770770770770771772772772772771771770770769769769770770770770770

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 Index000000000.31.12.54.56.47.26.95.53.51.70.500000

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)8.288.38.89.39.810.21112.710.910.710.410.310.410.510.510.610.610.611.411.610.910.29.9
PM10 (µg/m³)10.410.41111.612.312.913.31415.413.914.714.514.114.11413.913.913.913.814.514.613.912.912.5
Ozone (O₃) (µg/m³)63626058565347404158831031121151171201221191089279726865
NO₂ (µg/m³)8.28.38.81011.613.215.517.917.913.56.81.80.40.71.10.90.71.43.66.68.89.38.98.6
SO₂ (µg/m³)1.41.31.31.31.41.41.51.61.61.41.2111.11.21.21.21.21.21.31.31.31.31.3
CO (µg/m³)169167168169173185216255271243194155143142142139137141156176188182167157

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.