Weather forecast Viesīte 18-08-2026

Weather forecast Viesīte Tuesday, August 18 18.08.2026: fog, temperature from 12 °C to 19 °C.

Precipitation probability 59%. Wind up to 3.61 m/s (gusts 4.92 m/s). Air humidity 56–99%, atmospheric pressure 754–755 mm Hg, UV index up to 4.

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ModerateAug 15, 12:55 PM — Aug 17, 09:00 AMTranslate with Google

Thunderstorms with hail and precipitation amount up to 30 mm and gusts up to 23 m/s are expected

Moderate thunderstorm with hail warning

We expect hailstorms in district Šaľa, that represent potential risk for human activities. They can be associated with short term rainstorms that can reach 20 - 30 mm, gusts of 18 - 23 m/s (65 - 85 km/h) and hail.

BE AWARE that thunderstorms may occur. Take extra care in exposed areas, like mountains, forest and open terrain. Disruption to outdoor activities is possible.

SevereAug 13, 10:51 PM — Aug 16, 08:00 PMTranslate with Google

High temperature up to 35 °C is expected

Severe high temperature warning

We expect very high temperature 35 °C in district Šaľa, that represents danger for human health during outdoor activities, particularly for children and elderly people.

BE PREPARED that high temperatures will lead to health risks amongst vulnerable people e.g. the elderly and very young. Listen to and act upon advice from the authorities.

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Sunrise 05:53
Sunset 20:49

First Quarter37% illuminated
Moonrise 13:57 · Moonset 21:46

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← Mon, Aug 17

Tue, Aug 18, 2026

Wed, Aug 19 →

Forecast from 12 °C to 19 °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)	13	12	12	12	13	12	12	12	13	15	16	16	16	16	15	17	19	19	17	16	15	13	13	12
Precipitation (mm/hr)	0	0	0	0	0	0	0.26	0	0	0	0.55	0.41	0.25	0.22	0.01	0.12	0.04	0.32	0.54	0.38	0.04	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 (%)	100	100	100	100	100	100	97	100	45	50	87	56	50	100	86	87	79	84	62	52	55	36	32	31
Rain chance (%)	42	42	43	43	43	43	59	42	19	15	51	39	28	38	20	23	13	36	42	36	21	18	18	18

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)	1.81	1.69	1.81	1.69	1.5	1.69	1.69	1.69	2.31	2.39	2.5	3.11	3.61	3.61	2.69	2.31	2.19	2.5	2.69	2.11	2.31	2.31	2.19	2.11
Wind gust (m/s)	3.61	3.25	3.42	3.11	2.61	3.06	3.06	2.81	3.25	3	3.11	4.11	4.92	4.92	3.83	3.11	2.56	3.22	4.42	3.92	4.81	4.78	4.56	4.42
Wind direction (°)	WNW 303°	W 280°	W 279°	W 271°	W 266°	W 266°	W 263°	WSW 254°	WSW 257°	WSW 250°	WSW 245°	WSW 243°	WSW 247°	WSW 246°	WSW 249°	WSW 258°	WSW 247°	WSW 247°	W 264°	WSW 255°	WSW 245°	WSW 250°	WSW 249°	WSW 249°

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 (%)	98	98	98	98	98	99	99	97	90	82	77	81	78	78	79	65	56	58	75	80	86	92	92	93

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)	755	755	755	755	755	755	755	755	755	755	755	755	755	755	755	755	754	754	754	754	754	754	755	755

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	0.1	0.1	0.3	0.4	0.5	0.6	0.6	0.5	0.3	4	4	4	4	3	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)	2.8	3.2	2.4	2.3	2.3	1.5	1.1	1.1	1	0.5	0.5	0.7	0.8	0.9	1.1	1.3	1.9	1.8	2.1	2.1	2.2	2.7	3.2	3.7
PM10 (µg/m³)	4.1	3.9	3.3	2.8	2.5	1.6	1.2	1.2	1.1	0.6	0.6	0.8	1.1	1.3	1.5	1.7	2.6	2.6	3	3	2.9	3.5	4.1	4.6
Ozone (O₃) (µg/m³)	37	36.8	36.5	37.8	40	43	45	47	50	52	55	57	60	62	64	66	68	70	69	64	57	51	47	45
NO₂ (µg/m³)	2.6	3.2	3.4	3.6	3.5	3	2.5	2.1	1.9	1.6	1.4	1.2	1.1	1	0.9	0.8	0.6	0.5	0.8	1.8	3.3	4.7	6	7.2
SO₂ (µg/m³)	0.1	0.2	0.4	0.5	0.6	0.7	0.7	0.7	0.6	0.6	0.6	0.5	0.5	0.5	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.5
CO (µg/m³)	122	117.3	113	108.5	103	102	101	99	97	96	96	96	96	96	95	95	95	94	95	98	101	103	102	100

← Mon, Aug 17

Tue, Aug 18, 2026

Wed, Aug 19 →

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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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