Weather tomorrow: Petersburg
Forecast for tomorrow, 28 September: overcast and light rain. The daily air temperature range is 5 to 10 °C. Chance of precipitation tomorrow according to the daily forecast: 90%. Forecast precipitation amount: 9.5 mm. Wind from the southeast at 1.7 m/s.
monday 28 september
Precipitation probability 90%
Precipitation 9.5 mm
Wind
1.7 m/s
Pressure 999.9 hPa
Index UV 1
Humidity 89%
Sunrise 06:50
Moon Waning Gibbous
Sunrise 06:50
Sunset 18:34
G/m activity 2
Moon Waning Gibbous
What is the atmospheric pressure in Petersburg tomorrow?
Pressure adjusted for location elevation. Location elevation: 13 m relative to sea level
Forecast for 28.09.2026 · Local time
Pressure: 998.6–1003.9 hPa.
Minimum: 998.6 hPa01:00–06:00
Maximum: 1003.9 hPa22:00–23:00
Largest change over 3 hours:
−1.3 hPa · 00:00–03:00
First of 12 intervals with the same change magnitude shown.
hPa · Change over the previous 3 hours
Colours show pressure relative to this day’s range
Lower · 998.6 Scale midpoint · 1001.3 Higher · 1003.9 Largest change over 3 hoursWhat is the chance of precipitation in Petersburg tomorrow?
Chance of precipitation tomorrow according to the daily forecast: 90%.
Precipitation for tomorrow
| 00:00 | Amount of precipitation in millimeters (mm): 4.1 mm | Probability of precipitation in percent (%): 90% |
|---|---|---|
| 01:00 | Amount of precipitation in millimeters (mm): 0.5 mm | Probability of precipitation in percent (%): 65% |
| 02:00 | Amount of precipitation in millimeters (mm): 1.4 mm | Probability of precipitation in percent (%): 80% |
| 03:00 | Amount of precipitation in millimeters (mm): 0.7 mm | Probability of precipitation in percent (%): 72% |
| 04:00 | Amount of precipitation in millimeters (mm): 0.4 mm | Probability of precipitation in percent (%): 60% |
| 05:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 39% |
| 06:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 39% |
| 07:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 38% |
| 08:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 50% |
| 09:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 33% |
| 10:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 26% |
| 11:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 32% |
| 12:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 31% |
| 13:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 29% |
| 14:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 30% |
| 15:00 | Amount of precipitation in millimeters (mm): 0.5 mm | Probability of precipitation in percent (%): 55% |
| 16:00 | Amount of precipitation in millimeters (mm): 0.6 mm | Probability of precipitation in percent (%): 58% |
| 17:00 | Amount of precipitation in millimeters (mm): 0.4 mm | Probability of precipitation in percent (%): 54% |
| 18:00 | Amount of precipitation in millimeters (mm): 0.3 mm | Probability of precipitation in percent (%): 53% |
| 19:00 | Amount of precipitation in millimeters (mm): 0.6 mm | Probability of precipitation in percent (%): 65% |
| 20:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 52% |
| 21:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 39% |
| 22:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 38% |
| 23:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 38% |
Petersburg weather tomorrow: morning, afternoon and evening
Morning: fog, +5 °C. Afternoon: overcast and showers, +9 °C. Evening: overcast and light rain, +8 °C.
According to the hourly forecast, tomorrow's highest temperature is expected from 14:00 to 16:00, at around +10 °C. Times are local.
Tomorrow's strongest winds are expected at 04:00 (from the southeast); from 12:00 to 13:00 (from the south). The lightest winds are expected at 03:00 (from the southeast); at 08:00 (from the southeast). Times are local.
Temperature and wind for tomorrow
What geomagnetic activity is forecast for Petersburg tomorrow?
The highest forecast Kp index for tomorrow is 2.