5-day weather forecast Fairfax Sep 12, 2026
27°Weather forecast Fairfax Saturday Sep 12, 2026: overcast, temperature from 19 °C to 27 °C.
Precipitation probability 80%. Wind up to 6.19 m/s (gusts 9.89 m/s). Air humidity 44–98%, atmospheric pressure 757–761 mm Hg, UV index up to 5.1.
5 days at a glance — tap a day to open it
Sunrise 06:59
Sunset 19:36
Sunset 19:36
New Moon3% illuminated
Moonrise 08:36 · Moonset 20:07
Moonrise 08:36 · Moonset 20:07
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Light rain shower | 19 °C | 80% (1.39 mm/hr) | 100% | 98% | 758 mm Hg | NNW 339° 3.11 (6.33) m/s | 0 |
| 01:00 |  Patchy rain possible | 21 °C | 45% (0.12 mm/hr) | 100% | 97% | 757 mm Hg | ESE 112° 6.19 (7.22) m/s | 0 |
| 02:00 |  Mist | 21 °C | 38% | 100% | 95% | 757 mm Hg | ESE 116° 2.81 (5.11) m/s | 0 |
| 03:00 | Mist | 20 °C | 39% | 100% | 97% | 758 mm Hg | S 173° 1.89 (4.11) m/s | 0 |
| 04:00 |  Overcast | 20 °C | 34% | 100% | 97% | 758 mm Hg | SW 216° 3.61 (6.81) m/s | 0 |
| 05:00 | Mist | 20 °C | 39% | 100% | 96% | 759 mm Hg | SSW 212° 2 (3.39) m/s | 0 |
| 06:00 | Mist | 20 °C | 38% | 100% | 96% | 760 mm Hg | W 280° 2 (3.11) m/s | 0 |
| 07:00 | Mist | 20 °C | 39% | 100% | 96% | 760 mm Hg | NNE 14° 2.39 (2.89) m/s | 0 |
| 08:00 | Overcast | 19 °C | 32% | 100% | 94% | 761 mm Hg | NE 35° 2.31 (4.33) m/s | 0.2 |
| 09:00 |  Partly cloudy | 20 °C | 19% | 57% | 87% | 761 mm Hg | NNE 33° 2.19 (3.42) m/s | 0.7 |
| 10:00 |  Cloudy | 21 °C | 19% | 80% | 80% | 761 mm Hg | NNE 28° 3 (3.72) m/s | 0.8 |
| 11:00 | Partly cloudy | 23 °C | 12% | 55% | 73% | 761 mm Hg | NNE 21° 3.69 (3.81) m/s | 1.9 |
| 12:00 |  Patchy rain possible | 24 °C | 10% (0.01 mm/hr) | 59% | 65% | 761 mm Hg | NNE 21° 4.39 (9.39) m/s | 4 |
| 13:00 | Patchy rain possible | 25 °C | 12% (0.01 mm/hr) | 86% | 58% | 761 mm Hg | NNE 25° 4.11 (9.11) m/s | 4.9 |
| 14:00 | Cloudy | 26 °C | 9% | 76% | 53% | 761 mm Hg | NNE 33° 3.5 (7.5) m/s | 5.1 |
| 15:00 | Partly cloudy | 27 °C | 5% | 53% | 48% | 761 mm Hg | NE 39° 3.19 (7.19) m/s | 4.1 |
| 16:00 | Partly cloudy | 27 °C | 3% | 39% | 44% | 761 mm Hg | NE 45° 3.5 (8.5) m/s | 2.9 |
| 17:00 | Cloudy | 27 °C | 7% | 74% | 44% | 761 mm Hg | NE 46° 3.81 (8.81) m/s | 1.4 |
| 18:00 | Cloudy | 26 °C | 7% | 74% | 46% | 761 mm Hg | NE 49° 3.61 (6.61) m/s | 0.7 |
| 19:00 | Overcast | 25 °C | 11% | 95% | 51% | 761 mm Hg | NE 40° 2.69 (4.5) m/s | 0.1 |
| 20:00 | Overcast | 24 °C | 26% | 100% | 84% | 760 mm Hg | ENE 71° 3.61 (7.22) m/s | 0 |
| 21:00 | Patchy rain possible | 24 °C | 36% (0.08 mm/hr) | 98% | 88% | 761 mm Hg | E 94° 2.81 (4.33) m/s | 0 |
| 22:00 |  Clear | 24 °C | 4% | 19% | 55% | 761 mm Hg | ENE 64° 4.31 (9.89) m/s | 0 |
| 23:00 | Overcast | 23 °C | 30% | 98% | 91% | 759 mm Hg | SSE 161° 3.31 (9.33) m/s | 0 |
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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.