5-day weather forecast St. Petersburg 17-08-2026
Weather forecast St. Petersburg today 17.08.2026: patchy rain possible, temperature from 15 °C to 27 °C.
Precipitation probability 22%. Wind up to 12.81 m/s (gusts 13.94 m/s). Air humidity 57–85%, atmospheric pressure 767–768 mm Hg, UV index up to 10.5.
5 days at a glance — tap a day to open it
Sunrise 07:02
Sunset 20:07
Sunset 20:07
Waxing Crescent27% illuminated
Moonrise 11:58 · Moonset 23:08
Moonrise 11:58 · Moonset 23:08
Chart
TableMon, Aug 17, 2026
Forecast from 15 °C to 27 °C and precipitation
Cloud cover and precipitation probability
Wind speed and direction
Air humidity
Atmospheric pressure
Ultraviolet index
Air quality & pollen
Mon, Aug 17, 2026
Frequently asked questions about the 5-day weather in St. Petersburg
What will the weather be like in St. Petersburg over the next 5 days?
Over the next 5 days in St. Petersburg the temperature is expected to range from about 15 to 27 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in St. Petersburg?
The chance of rain in St. Petersburg over the next 5 days reaches 23%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for St. Petersburg?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in St. Petersburg will be the warmest and which the coolest?
Over the next 5 days the temperature in St. Petersburg ranges from about 15 to 27 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in St. Petersburg over the next 5 days?
Over the next 5 days the wind in St. Petersburg picks up to 13 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in St. Petersburg is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 23%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for St. Petersburg?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
St. 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.