5-day weather forecast Petersburg 18-04-2026

Weather forecast Petersburg tomorrow 18.04.2026: sunny, temperature from 18 °C to 31 °C.

No precipitation expected. Wind up to 3.61 m/s (gusts 6.72 m/s). Air humidity 36–72%, atmospheric pressure 757–762 mm Hg, UV index up to 8.7.

Sunrise 06:31
Sunset 19:48

Waxing Crescent1% illuminated
Moonrise 06:52 · Moonset 21:43

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Table

← Fri, Apr 17

Sat, Apr 18, 2026

Sun, Apr 19 →

Forecast from 18 °C to 31 °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)	21	21	20	20	19	19	18	19	21	23	26	28	30	31	31	31	31	30	29	28	27	26	23	23
Precipitation (mm/hr)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

Cloud cover and precipitation probability

Cloud cover & Rain chance
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 (%)	0	0	35	64	21	5	1	10	2	0	0	0	0	0	7	8	8	8	6	5	4	27	38	12
Rain chance (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0

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	2.31	2.19	2	1.81	1.89	1.5	1.19	1.5	1.81	2.31	2.81	2.89	3	3	3.11	3.5	3.61	2.61	1.19	2	2.31	2.61	3.19
Wind gust (m/s)	5.03	4.83	4.61	4.19	3.78	4	3.14	2.53	2.28	2.08	2.64	3.22	3.33	3.44	3.44	3.58	4.03	4.19	3.64	2.53	4.19	4.83	5.47	6.72
Wind direction (°)	ENE 65°	ENE 61°	ENE 61°	E 79°	ENE 75°	ENE 58°	ENE 64°	E 82°	E 92°	ESE 109°	SE 125°	SSE 147°	S 171°	SSW 195°	SW 217°	SW 223°	SW 230°	SW 233°	SW 235°	SSW 201°	SSE 162°	SSE 166°	S 172°	S 177°

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 (%)	49	53	58	60	62	67	70	72	71	60	53	48	44	38	36	36	36	37	40	42	43	50	53	53

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)	761	761	761	761	761	761	761	762	762	762	762	761	761	761	760	759	759	758	758	758	758	758	758	757

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	0.6	1.8	3.7	5.9	7.8	8.7	8.2	6.5	4.3	2.4	0.9	0.2	0	0	0	0

Air quality & pollen

Air quality
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
PM2.5 (µg/m³)	9.3	9.8	10.7	12.5	13.6	10.4	10	9.4	8.7	7.1	6.1	5.7	5.5	5.3	5.6	5.7	5.8	5.7	5.7	5.8	6.2	6.8	7.2	7.3
PM10 (µg/m³)	10	10.5	11.4	13.2	14.1	11.1	10.7	10.3	9.8	8.4	7.3	6.8	6.4	6.2	6.1	6.2	6.1	6.1	6	6.1	6.5	7	7.4	7.5
Ozone (O₃) (µg/m³)	63	59	51	42	44	64	94	119	132	139	143	145	145	142	136	128	121	117	115	113	113	113	112	109
NO₂ (µg/m³)	11.1	12.3	14.4	16.9	17.5	14.6	9.7	5.8	3.9	2.8	2.2	1.9	1.9	2.4	3.5	5	5.9	5.8	5.3	4.7	4.3	4	3.8	3.9
SO₂ (µg/m³)	3.1	3.1	3	3	3	3.2	3.4	3.6	3.5	3.4	3.2	3	2.9	2.7	2.5	2.2	2.1	2.1	2.1	2.3	2.6	3	3.4	3.7
CO (µg/m³)	172.9	173.9	180.9	188.9	192.9	186.9	174.9	164.9	157.9	151.9	147.9	146.9	148.9	152.9	162.9	174.9	181.9	177.9	167.9	159.9	156.9	156.9	156.9	156.9

← Fri, Apr 17

Sat, Apr 18, 2026

Sun, Apr 19 →

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.

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