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
06:48
Sunrise
19:02
Sunset
Moon
Waxing Crescent
11:33
Moonrise
20:42
Moonset
Daily Forecast
Tuesday
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Affton.
Resources
UV Index
Humidity
Weather in Affton tomorrow, September 16, 2026
Expect a muted, overcast feel in Affton on September 16, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. Expect a grey start, with morning cloud around 100% by 02:00. Outdoor plans early on should not rely on bright skies.
Expect highs of 29°C and cooler readings close to 12°C. The air stays humid, with relative humidity between 57% and 95% and the peak around 06:00. Airflow remains manageable, reaching about 4.9 km/h around 03:00.
The afternoon keeps an overcast feel, as cloud reaches about 87% around 13:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.0 km, with poorer spells close to 12.2 km. Daylight runs from 06:49 to 19:01, lasting 12 hours 11 minutes of sunlight today.
Taken together, overcast skies in Affton on September 16, 2026 favour indoor or covered options, with temperatures near 29°C.
Frequently asked questions about weather in Affton
How warm does it get in Affton?
The warmest month in Affton is July, with average high temperatures of 32°C. The average temperature during this period is around 27°C.
How cold does it get in Affton?
The coldest month in Affton is January, with average low temperatures of -3°C. The average temperature during this period is around 0°C.
What is the wettest time of year in Affton?
The wettest month in Affton is April, with an average of 136mm of precipitation.
What is the driest time of year in Affton?
The driest month in Affton is December, with an average of 65mm of precipitation.
Explore more weather forecasts
- Concord, Missouri
- New York City, New York
- Crestwood, Missouri
- Los Angeles, California
- Mehlville, Missouri
- Brooklyn, New York
- Lemay, Missouri
- Chicago, Illinois
- Webster Groves, Missouri
- Houston, Texas
- Kirkwood, Missouri
- Queens, New York
- Oakville, Missouri
- Phoenix, Arizona
- Clayton, Missouri
- Philadelphia, Pennsylvania