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
06:12
Sunrise
18:23
Sunset
Moon
Waxing Crescent
10:41
Moonrise
20:22
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Green Valley.
Resources
UV Index
Humidity
Weather in Green Valley today, September 15, 2026
Green Valley 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 day peaks near 35°C and cools toward 21°C. The air stays humid, with relative humidity between 27% and 52% and the peak around 22:00. Expect gentle winds, highest near 17:00 at 5.7 km/h.
Expect persistent cloud later on, with amounts around 100% by 21:00. Sunshine remains the exception, not the rule. Views remain open at about 16.1 km. Sunrise is at 06:12 and sunset at 18:23, giving 12 hours 11 minutes of sunlight today.
In short, cloud leads the story in Green Valley on September 15, 2026; expect limited sun and a peak around 35°C.
Frequently asked questions about weather in Green Valley
How warm does it get in Green Valley?
The warmest month in Green Valley is June, with average high temperatures of 36°C. The average temperature during this period is around 29°C.
How cold does it get in Green Valley?
The coldest month in Green Valley is January, with average low temperatures of 4°C. The average temperature during this period is around 10°C.
What is the wettest time of year in Green Valley?
The wettest month in Green Valley is July, with an average of 65mm of precipitation.
What is the driest time of year in Green Valley?
The driest month in Green Valley is May, with an average of 3mm of precipitation.
Explore more weather forecasts
- Sahuarita, Arizona
- New York City, New York
- Drexel Heights, Arizona
- Los Angeles, California
- Vail, Arizona
- Brooklyn, New York
- Tucson Estates, Arizona
- Chicago, Illinois
- Tucson, Arizona
- Houston, Texas
- Rio Rico, Arizona
- Queens, New York
- Flowing Wells, Arizona
- Phoenix, Arizona
- Catalina Foothills, Arizona
- Philadelphia, Pennsylvania
