5-day weather forecast Fairfax Sep 15, 2026
25°Weather forecast Fairfax Tuesday Sep 15, 2026: overcast, temperature from 15 °C to 25 °C.
Precipitation probability 19%. Wind up to 2.89 m/s (gusts 6.81 m/s). Air humidity 38–72%, atmospheric pressure 769–771 mm Hg, UV index up to 6.
5 days at a glance — tap a day to open it
Sunrise 06:50
Sunset 19:18
Sunset 19:18
Waxing Crescent23% illuminated
Moonrise 11:55 · Moonset 21:30
Moonrise 11:55 · Moonset 21:30
Chart
Table
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 18 °C | 3% | 12% | 53% | 769 mm Hg | NNE 25° 2.11 (5.31) m/s | 0 |
| 01:00 |  Partly cloudy | 17 °C | 7% | 53% | 58% | 769 mm Hg | NNE 26° 1.5 (2.03) m/s | 0 |
| 02:00 |  Overcast | 17 °C | 15% | 100% | 60% | 769 mm Hg | NNE 26° 1.5 (1.92) m/s | 0 |
| 03:00 |  Cloudy | 16 °C | 10% | 71% | 61% | 769 mm Hg | NNE 25° 1.89 (4.33) m/s | 0 |
| 04:00 | Overcast | 16 °C | 14% | 92% | 62% | 769 mm Hg | NNE 25° 1.89 (3.61) m/s | 0 |
| 05:00 | Partly cloudy | 15 °C | 7% | 39% | 63% | 770 mm Hg | NNE 16° 1.69 (2.72) m/s | 0 |
| 06:00 | Overcast | 15 °C | 16% | 100% | 64% | 770 mm Hg | N 6° 1.61 (2.03) m/s | 0 |
| 07:00 |  Cloudy | 15 °C | 11% | 72% | 64% | 770 mm Hg | NE 37° 1.81 (3.5) m/s | 0 |
| 08:00 | Overcast | 15 °C | 14% | 92% | 63% | 771 mm Hg | NNE 13° 1.11 (2.31) m/s | 0.1 |
| 09:00 |  Sunny | 17 °C | 3% | 5% | 55% | 771 mm Hg | NE 53° 1.61 (3.14) m/s | 5 |
| 10:00 | Sunny | 19 °C | 2% | 12% | 50% | 771 mm Hg | E 85° 1.39 (2.61) m/s | 5 |
| 11:00 | Cloudy | 21 °C | 7% | 74% | 47% | 771 mm Hg | ESE 105° 1.61 (2.5) m/s | 5 |
| 12:00 |  Partly cloudy | 22 °C | 4% | 46% | 44% | 771 mm Hg | SE 128° 1.69 (2.22) m/s | 6 |
| 13:00 | Sunny | 23 °C | 1% | 5% | 41% | 770 mm Hg | ESE 118° 2.19 (2.61) m/s | 6 |
| 14:00 | Sunny | 24 °C | 1% | 5% | 39% | 770 mm Hg | ESE 113° 2.69 (3.06) m/s | 6 |
| 15:00 | Sunny | 25 °C | 1% | 15% | 38% | 770 mm Hg | ESE 113° 2.89 (3) m/s | 6 |
| 16:00 | Overcast | 25 °C | 10% | 100% | 38% | 769 mm Hg | ESE 119° 2.81 (6.81) m/s | 5 |
| 17:00 | Overcast | 24 °C | 10% | 100% | 41% | 769 mm Hg | ESE 122° 2.5 (2.5) m/s | 5 |
| 18:00 | Cloudy | 23 °C | 7% | 68% | 51% | 769 mm Hg | SE 132° 2.19 (3.81) m/s | 5 |
| 19:00 | Sunny | 22 °C | 5% | 21% | 60% | 770 mm Hg | SE 140° 1.69 (2.42) m/s | 6 |
| 20:00 | Overcast | 20 °C | 14% | 92% | 62% | 770 mm Hg | SSE 149° 1.69 (2.31) m/s | 0 |
| 21:00 | Overcast | 19 °C | 15% | 100% | 63% | 770 mm Hg | SE 128° 2.11 (3.5) m/s | 0 |
| 22:00 | Overcast | 19 °C | 16% | 98% | 66% | 770 mm Hg | ESE 122° 2.11 (4.53) m/s | 0 |
| 23:00 | Overcast | 18 °C | 19% | 99% | 72% | 770 mm Hg | SE 134° 2.19 (5.53) 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.