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
07:13
Sunrise
19:25
Sunset
Moon
Waxing Crescent
13:02
Moonrise
21:35
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Air Quality Data Available
Upgrade to access real-time air quality data for Marietta.
Resources
UV Index
Humidity
Weather in Marietta today, September 16, 2026
Marietta sees a largely clear day on September 16, 2026, interrupted by cloudier skies around 22:00. Plan for bright conditions either side of that cloudier interval. The opening hours look fair, as cloud stays near 4% around 11:00. Morning errands should face fewer weather interruptions.
The day peaks near 31°C and cools toward 19°C. The air stays humid, with relative humidity between 27% and 93% and the peak around 05:00. A lighter breeze peaks around 18:00 near 11.7 km/h.
Through the afternoon skies look more workable, with cloud near 31% around 22:00. Later outdoor plans have a clearer window than the morning may have suggested. Horizontal visibility sits around 16.0 km, briefly nearer 15.5 km. Expect sunrise at 07:13, sunset at 19:25, and 12 hours 11 minutes of sunlight today overall.
The practical takeaway for Marietta is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 31°C.
Frequently asked questions about weather in Marietta
How warm does it get in Marietta?
The warmest month in Marietta is July, with average high temperatures of 30°C. The average temperature during this period is around 25°C.
How cold does it get in Marietta?
The coldest month in Marietta 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 Marietta?
The wettest month in Marietta is May, with an average of 145mm of precipitation.
What is the driest time of year in Marietta?
The driest month in Marietta is November, with an average of 79mm of precipitation.