Philadelphia County, PA Weather Forecast
County weather hub
Sunny
Compare major city weather across Philadelphia County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 94. South wind 0 to 10 mph.
County Weather Overview
This county weather page brings together forecast coverage for Philadelphia County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Philadelphia County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 18 to May 23, 2026
- Latest sync
- May 17, 2026 7:02 PM EDT
- Forecast office
- PHI
- Source
- NOAA / NWS
Daily Outlook
This Week in Philadelphia County
Tuesday looks like the warmest upcoming period in Philadelphia County at 95 degrees F.
Thursday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 15 mph W.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 17, 2026 7:02 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- PHI
- Radar station
- KDIX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 70. South wind 5 to 10 mph.
Sunny, with a high near 95. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 73.
Showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 80%.
A slight chance of rain showers before 2pm. Partly sunny, with a high near 72.
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 53.
A chance of rain showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.
Rain showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Rain showers likely. Mostly cloudy, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
May 18
|
Sunny
|
94°F |
0 to 10 mph
S
|
|
Monday Night
May 18
|
Mostly Clear
|
70°F |
5 to 10 mph
S
|
|
Tuesday
May 19
|
Sunny
|
95°F |
5 to 10 mph
SW
|
|
Tuesday Night
May 19
|
Mostly Clear
|
73°F |
5 to 10 mph
SW
|
|
Wednesday
May 20
|
Mostly Sunny then Showers And Thunderstorms
|
94°F |
5 to 15 mph
W
|
|
Wednesday Night
May 20
|
Showers And Thunderstorms
|
58°F |
5 to 10 mph
NW
|
|
Thursday
May 21
|
Slight Chance Rain Showers
|
72°F |
5 to 10 mph
NE
|
|
Thursday Night
May 21
|
Mostly Cloudy then Slight Chance Rain Showers
|
53°F |
0 to 5 mph
E
|
|
Friday
May 22
|
Chance Rain Showers
|
68°F |
5 to 10 mph
E
|
|
Friday Night
May 22
|
Chance Rain Showers
|
53°F |
5 to 10 mph
E
|
|
Saturday
May 23
|
Rain Showers Likely
|
71°F |
5 to 10 mph
E
|
|
Saturday Night
May 23
|
Rain Showers Likely
|
57°F |
5 mph
E
|
Major City Forecasts
Live forecast snapshots for major cities across Philadelphia County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Philadelphia County.
Largest mapped city population in this region: 1,578,487.
