See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
20°
Clear
Feels Like: 21°
Min: 15°
Max: 29°
The next few hours will be clear, with today reaching 29°C and dropping to 21°C. The coming days will be mostly cloudy throughout the day.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:06
Sunrise
19:18
Sunset
Moon
Waxing Crescent
12:57
Moonrise
21:24
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 Greensburg.
Resources
UV Index
Humidity
Weather in Greensburg today, September 16, 2026
Greensburg starts September 16, 2026 under largely sunny skies, with bright spells setting the tone from the outset. Outdoor plans should enjoy long stretches of open sky as the day unfolds. The morning looks comparatively open, with cloud near 0% around 09:00. Early outdoor plans have a better chance of staying dry and bright.
The day peaks near 29°C and cools toward 15°C. The air stays humid, with relative humidity between 63% and 90% and the peak around 22:00. Airflow remains manageable, reaching about 3.5 km/h around 10:00.
Afternoon skies stay clogged, peaking close to 100% near 23:00. The grey theme continues rather than clearing out. Visibility stays near 16.1 km. Daylight runs from 07:06 to 19:18, lasting 12 hours 12 minutes of sunlight today.
The practical takeaway for Greensburg is a bright September 16, 2026, ideal for outdoor errands before temperatures ease from about 29°C.
Explore more weather forecasts
- Murrysville, Pennsylvania
- New York City, New York
- North Versailles, Pennsylvania
- Los Angeles, California
- Monroeville, Pennsylvania
- Brooklyn, New York
- McKeesport, Pennsylvania
- Chicago, Illinois
- Plum, Pennsylvania
- Houston, Texas
- West Mifflin, Pennsylvania
- Queens, New York
- Munhall, Pennsylvania
- Phoenix, Arizona
- Wilkinsburg, Pennsylvania
- Philadelphia, Pennsylvania
