Philadelphia County, PA Weather Forecast

County weather hub

94°
F

Sunny

Compare major city weather across Philadelphia County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Monday, May 18, 2026
Wind: 0 to 10 mph S
Monday

Sunny, with a high near 94. South wind 0 to 10 mph.

County weather hub

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
Next High
94°F
Monday
Next Low
70°F
Monday Night
Rain Outlook
8
Periods mentioning precipitation
Windiest
5 to 15 mph
Wednesday

Daily Outlook

Today
May 18
Sunny
94 °F
/ 70°F
Wind 0 to 10 mph
Tue
May 19
Sunny
95 °F
/ 73°F
Wind 5 to 10 mph
Wed
May 20
Mostly Sunny then Showers And Thunderstorms
94 °F
/ 58°F
Wind 5 to 15 mph
Thu
May 21
Slight Chance Rain Showers
72 °F
/ 53°F
Wind 5 to 10 mph
Fri
May 22
Chance Rain Showers
68 °F
/ 53°F
Wind 5 to 10 mph
Sat
May 23
Rain Showers Likely
71 °F
/ 57°F
Wind 5 to 10 mph

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 source

Extended Forecast

Monday Night
May 18
70°F
Mostly Clear
5 to 10 mph S

Mostly clear, with a low around 70. South wind 5 to 10 mph.

Tuesday
May 19
95°F
Sunny
5 to 10 mph SW

Sunny, with a high near 95. Southwest wind 5 to 10 mph, with gusts as high as 25 mph.

Tuesday Night
May 19
73°F
Mostly Clear
5 to 10 mph SW

Mostly clear, with a low around 73.

Wednesday
May 20
94°F
Mostly Sunny then Showers And Thunderstorms
5 to 15 mph W

Showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 80%.

Wednesday Night
May 20
58°F
Showers And Thunderstorms
5 to 10 mph NW

Showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 80%.

Thursday
May 21
72°F
Slight Chance Rain Showers
5 to 10 mph NE

A slight chance of rain showers before 2pm. Partly sunny, with a high near 72.

Thursday Night
May 21
53°F
Mostly Cloudy then Slight Chance Rain Showers
0 to 5 mph E

A slight chance of rain showers after 2am. Mostly cloudy, with a low around 53.

Friday
May 22
68°F
Chance Rain Showers
5 to 10 mph E

A chance of rain showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.

Friday Night
May 22
53°F
Chance Rain Showers
5 to 10 mph E

A chance of rain showers. Mostly cloudy, with a low around 53. Chance of precipitation is 50%.

Saturday
May 23
71°F
Rain Showers Likely
5 to 10 mph E

Rain showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

Saturday Night
May 23
57°F
Rain Showers Likely
5 mph E

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

Tracked cities
2
Coverage
100%

Forecast coverage currently spans 2 of 2 mapped cities in Philadelphia County.

Largest mapped city population in this region: 1,578,487.

Old City Hall - U. S. Supreme Court Building
Old City Hall - U. S. Supreme Court Building image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.