5-day weather forecast Petersburg 20-03-2026

Weather forecast Petersburg Friday 20 March 20.03.2026: sunny, temperature from 6 °C to 18 °C.

Precipitation probability 81%. Wind up to 2.89 m/s (gusts 5.64 m/s). Air humidity 50–90%, atmospheric pressure 758–765 mm Hg, UV index up to 4.9.

Sunrise 07:19
Sunset 19:19

Chart

Table

Type of temperature:

°C

°F

← Thu, 19 Mar

Fri, 20 Mar, 2026

Sat, 21 Mar →

Forecast from 6 °C to 18 °C and precipitation

Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	8	8	7	7	7	6	6	6	8	11	14	16	17	18	17	17	16	15	14	12	11	10	10	9
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.02	0.05	0.05	0.02	0	0	0	0	0

Cloud cover

Cloud cover
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	80	85	89	50	30	10	15	17	20	10	5	0	37	56	75	98	88	100	72	52	59	94	100	71

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	2.39	2.89	2.5	1.89	2.31	2.31	2	1.81	1.5	1.19	0.81	0.61	0.39	0.39	0.31	0.39	1	1	0.5	1.11	1.5	1.69	2.11	1.89
Wind gust (m/s)	5.03	5.64	4.47	3.5	4.25	4.28	3.72	3.31	2.75	2	1.11	0.78	0.5	0.47	0.36	0.47	1.14	1.33	0.75	2.08	3.14	3.58	4.42	3.78

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	53	54	55	57	58	59	63	64	66	60	57	53	52	51	50	58	58	61	68	74	83	88	90	51

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	764	764	764	763	762	762	761	761	761	761	761	761	760	759	758	762	761	761	761	761	761	762	762	765

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.2	0.8	1.9	3.3	4.4	4.9	4.4	3.6	2.3	1.1	0.3	0	0	0	0	0

← Thu, 19 Mar

Fri, 20 Mar, 2026

Sat, 21 Mar →

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.

Learn more about our methodology →