5-day weather forecast Fairfax Nov 15, 2026

10°6° · Cloudy

Weather forecast Fairfax Sunday Nov 15, 2026: cloudy, temperature from 6 °C to 10 °C.

Precipitation probability 14%. Wind up to 5.81 m/s (gusts 11.53 m/s). Air humidity 49–75%, atmospheric pressure 764–771 mm Hg, UV index up to 3.

Weather Alerts

MinorNov 12, 05:30 PM — Nov 13, 01:30 AMTranslate with Google

Small Craft Advisory issued November 12 at 5:30PM EST until November 13 at 6:00PM EST by NWS Baltimore MD/Washington DC

Small Craft Advisory

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt expected. * WHERE...Tidal Potomac River from Key Bridge to Smith Point VA, and Chesapeake Bay and adjoining estuaries north of Smith Point VA. * WHEN...Until 6 PM EST Friday. * IMPACTS...Conditions will be hazardous to small craft.

5 days at a glance — tap a day to open it

Sunrise 06:51
Sunset 16:55

First Quarter42% illuminated
Moonrise 12:23 · Moonset 22:33

Chart

Table

← Sat, Nov 14

Sun, Nov 15, 2026

Mon, Nov 16 →

Forecast from 6 °C to 10 °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)	6	6	6	6	6	6	6	6	7	8	9	9	10	10	10	10	10	9	9	8	8	7	7	6
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 (%)	29	29	38	48	61	63	62	61	65	71	75	71	91	100	99	99	98	93	89	84	71	67	64	60
Rain chance (%)	8	8	9	9	11	11	11	11	11	11	11	9	11	12	12	12	12	12	12	12	12	13	14	14

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)	4.11	4.19	4.19	4.19	4.19	4.19	4.19	4.11	4.31	4.61	4.89	5.11	5.61	5.81	5.5	5.19	4.89	4.69	4.31	4.11	3.89	3.61	3.39	3.11
Wind gust (m/s)	9.33	9.22	8.92	8.86	8.72	8.64	8.5	8.39	9.08	9.78	10.28	10.67	11.03	11.31	11.42	11.47	11.53	10.56	9.75	8.81	9.5	9.14	8.97	8.69
Wind direction (°)	WNW 294°	WNW 297°	WNW 297°	WNW 297°	WNW 299°	WNW 300°	WNW 303°	WNW 302°	WNW 303°	NW 307°	NW 311°	NW 313°	NW 316°	NW 320°	NW 320°	NW 319°	NW 318°	NW 315°	NW 316°	NW 317°	NW 310°	NW 311°	NW 313°	NW 315°

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 (%)	70	69	68	68	68	68	68	68	66	62	60	56	52	49	49	50	52	55	58	60	67	70	73	75

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	765	765	766	766	767	767	767	768	768	768	768	768	768	768	769	769	770	770	770	770	771	771

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	2	2	2	2	3	3	2	2	0	0	0	0	0	0	0

Air quality & pollen

Air quality is available for the first three days only.

← Sat, Nov 14

Sun, Nov 15, 2026

Mon, Nov 16 →

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 →