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	2.31	2.5	2.69	2.89	2.89	2.81	2.69	2.5	3.11	3.5	3.69	3.89	3.89	3.61	3.39	3.11	2.5	1.89	1.31	2.11	2.81	3.19	3.5
Wind gust (m/s)	4.19	4.83	5.25	5.67	6.08	6.08	5.89	5.67	4.47	3.97	4.03	4.25	4.5	4.5	4.14	3.92	3.58	3.03	2.47	2.03	4.42	5.89	6.72	7.36
Wind direction (°)	NNE 16°	NNW 346°	NNW 335°	NNW 331°	NNW 328°	NW 321°	NW 322°	NW 312°	NW 318°	NNW 329°	NNW 334°	NNW 336°	NNW 340°	N 351°	N 358°	N 3°	N 9°	N 9°	NNE 29°	ENE 76°	E 92°	E 96°	ESE 103°	ESE 115°

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 (%)	80	81	83	85	86	87	88	86	78	69	62	56	51	46	43	42	40	40	42	54	58	60	66	74

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)	760	760	760	760	760	761	761	761	761	761	761	761	760	760	759	759	758	758	758	758	758	758	758	759

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	0.2	0.7	2	3.9	6.2	8.1	9.2	9.1	7.7	5.6	3.4	1.6	0.5	0	0	0	0

← Sat, Aug 1

Sun, Aug 2, 2026

Mon, Aug 3 →

Fairfax 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.

Learn more about our methodology →