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Hourly Forecast
Daylight Hours
06:40
Sunrise
18:52
Sunset
Moon
Waxing Crescent
11:16
Moonrise
20:47
Moonset
Daily Forecast
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Air Quality Data Available
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UV Index
Humidity
Weather in Norwalk today, September 15, 2026
Norwalk stays under cloudy skies on September 15, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. The first half of the day looks overcast, as cloud amounts reach about 100% around 04:00. Brighter weather, if it comes, waits until later.
Expect highs of 26°C and cooler readings close to 20°C. Relative humidity sits between 60% and 82%, reaching its peak around 04:00. Winds stay light, near 4.8 km/h by 14:00, so the day feels still more than breezy.
Expect persistent cloud later on, with amounts around 100% by 19:00. Sunshine remains the exception, not the rule. Horizontal visibility holds close to 16.1 km. Daylight runs from 06:40 to 18:52, lasting 12 hours 11 minutes of sunlight today.
Taken together, overcast skies in Norwalk on September 15, 2026 favour indoor or covered options, with temperatures near 26°C.
Frequently asked questions about weather in Norwalk
How warm does it get in Norwalk?
The warmest month in Norwalk is August, with average high temperatures of 31°C. The average temperature during this period is around 24°C.
How cold does it get in Norwalk?
The coldest month in Norwalk is January, with average low temperatures of 8°C. The average temperature during this period is around 13°C.
What is the wettest time of year in Norwalk?
The wettest month in Norwalk is January, with an average of 87mm of precipitation.
What is the driest time of year in Norwalk?
The driest month in Norwalk is July, with an average of 1mm of precipitation.
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