See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:39
Sunrise
18:53
Sunset
Moon
Waxing Crescent
12:42
Moonrise
20:49
Moonset
Daily Forecast
Wednesday
Today
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Arlington.
Resources
UV Index
Humidity
Weather in Arlington tomorrow, September 17, 2026
Arlington stays under cloudy skies on September 17, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open. Expect a grey start, with morning cloud around 100% by 06:00. Outdoor plans early on should not rely on bright skies.
The temperature range runs from about 16°C up to 25°C. The air stays humid, with relative humidity between 69% and 100% and the peak around 17:00. Airflow remains manageable, reaching about 1.7 km/h around 14:00.
Expect persistent cloud later on, with amounts around 100% by 14:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 12.1 km on average, though it can drop toward 3.3 km in thicker cloud or showers. Expect sunrise at 06:41, sunset at 18:51, and 12 hours 10 minutes of sunlight today overall.
Taken together, overcast skies in Arlington on September 17, 2026 favour indoor or covered options, with temperatures near 25°C.
Frequently asked questions about weather in Arlington
How warm does it get in Arlington?
The warmest month in Arlington is July, with average high temperatures of 27°C. The average temperature during this period is around 22°C.
How cold does it get in Arlington?
The coldest month in Arlington is January, with average low temperatures of -9°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Arlington?
The wettest month in Arlington is October, with an average of 130mm of precipitation.
What is the driest time of year in Arlington?
The driest month in Arlington is August, with an average of 90mm of precipitation.
