September 4th, 2026 Timelapse
On September 4th, the day began with a cool and somewhat overcast morning, as temperatures hovered around 52.1°F. The overall cloud cover stood at 64.6%, predominantly characterized by low clouds at 46.6% and mid-level clouds at 44.8%, creating a grayish hue across the sky. Surface winds were gentle, averaging just 2.8 mph, while winds at 100 meters above ground level picked up a bit, reaching 6.2 mph. This mild wind profile contributed to the slow movement of clouds, which drifted lazily as the low and mid-level layers moved at different speeds. There was a slight precipitation amount of 0.01 inches, suggesting that the moisture in the atmosphere was not entirely idle. The interaction between the lighter surface winds and the stronger upper winds created pockets of turbulence, resulting in the clouds occasionally shifting in unexpected directions.
As the day progressed towards midday, conditions took on a more dynamic character. The temperature increased to an average of 62.5°F, reflecting the sun's growing influence as some clouds began to dissipate. By this time, cloud cover had reduced to about 35.8%, with low clouds diminishing significantly to just 6.8%, while mid and high clouds made up the mix at 13.8% and 23.0% respectively. Surface winds saw a modest increase to 5.0 mph, while winds at 100 meters slightly rose to 6.8 mph. The upper-level winds were aligning more consistently with the lower-level winds as they both began to shift in the same direction, leading to a clearer view of the sky. The lighter clouds began to scatter and move more swiftly, creating a picturesque scene as light filtered through the remaining cloud layers. This shift also lessened turbulence, allowing for more stable cloud formation above.
By evening, temperatures had reached a comfortable 63.1°F, and the sky continued to show signs of clearing. Cloud cover diminished further to 20.5%, with low clouds falling to just 4.7% and mid and high clouds stabilizing at 9.5% and 10.7% respectively. The surface winds were relatively calm at 4.1 mph, while winds at 100 meters slightly decreased to 6.7 mph. The smooth alignment of wind patterns created a serene atmosphere as the clouds, now largely high-altitude, floated gently across the sky. However, some lingering wind shear effects could still be felt as the atmosphere transitioned to a more tranquil state. This final part of the day laid the groundwork for a clear evening, allowing for a stunning sunset as the day wrapped up, painting the sky in vibrant hues amidst the few remaining clouds.
September 4th, 2026 Timeline
Screenshots with weather data (wind layers, clouds, precipitation)
Weather Info for September 4th, 2026
Sunset: 7:44 PM