5-day weather forecast Fairfax 02-08-2026
Weather forecast Fairfax tomorrow 02.08.2026: light rain shower, temperature from 22 °C to 27 °C.
Precipitation probability 72%. Wind up to 3.69 m/s (gusts 6.08 m/s). Air humidity 65–99%, atmospheric pressure 757–759 mm Hg, UV index up to 2.1.
Weather Alerts
Hide alertsSmall Craft Advisory issued August 1 at 6:58AM EDT until August 1 at 11:00PM EDT by NWS Baltimore MD/Washington DC
Small Craft Advisory
* WHAT...Southeast winds 10 to 15 kt expected with gusts up to 20
kt expected.
* WHERE...Tidal Potomac River from Key Bridge to Cobb Island MD.
* WHEN...From 2 PM this afternoon to 11 PM EDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
5 days at a glance — tap a day to open it
Sunrise 06:11
Sunset 20:19
Sunset 20:19
Waning Gibbous75% illuminated
Moonrise 22:17 · Moonset 10:12
Moonrise 22:17 · Moonset 10:12
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 26 °C | 4% | 0% | 65% | 759 mm Hg | SSE 162° 3.61 (6.03) m/s | 0 |
| 01:00 |  Partly cloudy | 24 °C | 9% | 49% | 67% | 759 mm Hg | S 176° 3.69 (6.08) m/s | 0 |
| 02:00 | Partly cloudy | 24 °C | 9% | 47% | 68% | 759 mm Hg | S 176° 3.61 (5.81) m/s | 0 |
| 03:00 | Partly cloudy | 23 °C | 10% | 52% | 69% | 759 mm Hg | S 173° 3.39 (5.44) m/s | 0 |
| 04:00 | Partly cloudy | 23 °C | 11% | 54% | 72% | 758 mm Hg | SSE 159° 3.11 (5.03) m/s | 0 |
| 05:00 | Partly cloudy | 22 °C | 13% | 61% | 74% | 758 mm Hg | SSE 155° 3.11 (5.03) m/s | 0 |
| 06:00 | Partly cloudy | 22 °C | 13% | 53% | 77% | 759 mm Hg | SSE 154° 3.11 (5) m/s | 0 |
| 07:00 |  Cloudy | 22 °C | 20% | 83% | 80% | 759 mm Hg | SSE 151° 2.69 (4.33) m/s | 0.1 |
| 08:00 |  Partly cloudy | 22 °C | 14% | 43% | 82% | 759 mm Hg | SE 140° 2.61 (4.14) m/s | 0.4 |
| 09:00 | Cloudy | 23 °C | 18% | 74% | 80% | 759 mm Hg | SSE 153° 2.81 (4.14) m/s | 0.5 |
| 10:00 |  Patchy rain possible | 25 °C | 21% (0.02 mm/hr) | 100% | 74% | 759 mm Hg | SSE 164° 3.19 (4.11) m/s | 0.7 |
| 11:00 |  Overcast | 24 °C | 21% | 93% | 78% | 759 mm Hg | SSE 155° 2.19 (3.11) m/s | 1.1 |
| 12:00 | Patchy rain possible | 27 °C | 17% (0.02 mm/hr) | 100% | 66% | 758 mm Hg | SSE 155° 2.81 (3.22) m/s | 2.1 |
| 13:00 |  Patchy light rain | 26 °C | 54% (0.95 mm/hr) | 63% | 78% | 758 mm Hg | SSW 192° 1.81 (2.81) m/s | 1.2 |
| 14:00 |  Light rain shower | 24 °C | 60% (0.5 mm/hr) | 100% | 88% | 758 mm Hg | SW 216° 1.19 (2.08) m/s | 2.1 |
| 15:00 | Light rain shower | 24 °C | 72% (0.89 mm/hr) | 100% | 92% | 758 mm Hg | SW 215° 1.61 (2.75) m/s | 0.9 |
| 16:00 | Light rain shower | 23 °C | 64% (0.51 mm/hr) | 100% | 93% | 758 mm Hg | SW 231° 1.11 (1.83) m/s | 0.4 |
| 17:00 | Light rain shower | 23 °C | 65% (0.87 mm/hr) | 65% | 96% | 758 mm Hg | SSE 155° 0.39 (0.64) m/s | 0.3 |
| 18:00 |  Mist | 23 °C | 36% (0.09 mm/hr) | 54% | 96% | 758 mm Hg | E 91° 1.31 (2.11) m/s | 0.2 |
| 19:00 | Light rain shower | 23 °C | 49% (0.38 mm/hr) | 67% | 95% | 758 mm Hg | SE 125° 2.31 (3.47) m/s | 0 |
| 20:00 | Light rain shower | 22 °C | 61% (0.49 mm/hr) | 83% | 97% | 758 mm Hg | SE 127° 2.61 (4.19) m/s | 0 |
| 21:00 |  Fog | 22 °C | 43% (0.01 mm/hr) | 100% | 98% | 758 mm Hg | SE 126° 2.61 (4.25) m/s | 0 |
| 22:00 | Fog | 22 °C | 45% (0.03 mm/hr) | 100% | 98% | 758 mm Hg | SE 128° 2.39 (3.94) m/s | 0 |
| 23:00 |  Light rain shower | 22 °C | 60% (0.36 mm/hr) | 100% | 99% | 757 mm Hg | SE 140° 2.5 (4.06) m/s | 0 |
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.