E PA/NJ/DE Summer 2026 Obs/Discussion

[donsutherland1]

9 minutes ago, Eskimo Joe said:

Wilmington (ILG) hits 100°

Atlantic City (ACY) hits 101°

CC: @donsutherland1

Harrisburg (though not in the Philly CWA) and Newark, too.

[JTA66]

98F/DP 78F at 1pm

[Hurricane Agnes]

My high was officially 100.0" yesterday at 2:41 pm after a 78 low at 5:44 am.

Today a whole other story with an 82 low just before 6 am.  I was already at 92 before 9 am.

It's currently 97 with a dp of 82 (feels like of 122).  

[ChescoWx]

Below is the June and 1st Half of 2026 Chester County Area Climate Summary. Overall the county finished with a slightly above average temperature of 70.8 degrees or 0.6 degrees above the 1991-2020 climate baseline for June of 70.2 degrees. When using the entire climate dataset since 1893 we finished only +0.4 degrees above our overall 134 year average June temperature which is 70.4. This was 1.2 degrees cooler than June 2025 and our coolest June since the 67.4 degree average in June 2023. This was our 61st warmest June over the last 134 years of county climate data. Through the 1st 6 months of the year our average temperature was 48.0 degrees. This is 0.4 degrees below the 1991-2020 baseline and 0.1 degree over the 1893 - 2025 baseline. This represents our coldest start to a year since 2015. Overall this is the 66th warmest 1st half of a year over the last 134 years. Average precipitation across all stations was 3.11" this is 1.20" the 1991-2020 baseline and 1.02" below the overall average since 1893. For the 1st half of the year county precipitation has averaged 15.34" this is 6.95" below the 1991-2020 baseline of 22.29" and 6.82" below the 1893-2026 all years average of 22.16". This is our 7th driest average precipitation total with the lowest being the 13.82" average for the first half of 1963.

[Joshb32689]

12:55pm : KMQS now running 1.4 degrees cooler than this time yesterday. Currently sitting at 93.6°F, DP 76.5°F (heat index 107°F, a degree shy of yesterday’s high).

1:35p Edit: still running 1.4°F behind same time yesterday 

[Eskimo Joe]

Delaware Airpark (K33N) hits 100°

[Birds~69]

[ChescoWx]

East Nantmeal current temp is 92.7 the high has been 93.0. This is the 3rd consecutive day  I have reached 90 degrees. This marks only the 8th "heatwave" I have recorded in my 23 summers here in EN since 2004. Of note my poorly sited rooftop Tempest has gone 95.4 / 98.2 / 94.8 the last 3 days vs my VP Pro 2 with 93.0/94.8/91.0

[BBasile]

Can this moisture mix out already?  Even just a little. 

[PhiEaglesfan712]

PHL has reached 100 for the 2nd straight day.

[Hurricane Agnes]

I'm at 98 for my high so far (also current), with dp 80.

[ChescoWx]

Highs so far at the professional stations around Chesco -  Atglen DEOS 95.6 / Glenmoore DEOS 96.7 / Warwick DEOS 97.8 / West Chester DEOS 97.5/ Nottingham DEOS 97.5 / Devault DEOS 97.5 / Chester Springs DEOS 98.4 / West Bradford DEOS 96.6 / Avondale 2N 96.3 / West Grove DEOS 95.5 / KMQS Airport 95.5 / KOQN Airport 98.6

[ChescoWx]

1st 100 degree reading here on the island in SIC since I have had a station 2012

[BBasile]

5 minutes ago, ChescoWx said:

1st 100 degree reading here on the island in SIC since I have had a station 2012

100+ on the barrier islands is nuts.  

[Birds~69]

101F/DP 75F at 3:05pm. 

About the same temp as yesterday at this time. DP may be a little lower. Underachiever...  

[RedSky]

99F in the woods at 700ft

 

[Hurricane Agnes]

Have banged 99 but no triple digits here yet.

 

Norman has the Watches up - 

 

Quote

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 448
NWS STORM PREDICTION CENTER NORMAN OK
325 PM EDT FRI JUL 3 2026

SEVERE THUNDERSTORM WATCH 448 IS IN EFFECT UNTIL 1100 PM EDT
FOR THE FOLLOWING LOCATIONS

PAC001-011-013-015-017-023-025-027-029-031-033-035-037-041-043-
045-047-053-061-065-067-069-071-075-077-079-081-083-087-089-091-
093-095-097-099-101-103-105-107-109-113-115-117-119-121-127-131-
133-040300-
/O.NEW.KWNS.SV.A.0448.260703T1925Z-260704T0300Z/

PA
.    PENNSYLVANIA COUNTIES INCLUDED ARE

ADAMS                BERKS               BLAIR
BRADFORD             BUCKS               CAMERON
CARBON               CENTRE              CHESTER
CLARION              CLEARFIELD          CLINTON
COLUMBIA             CUMBERLAND          DAUPHIN
DELAWARE             ELK                 FOREST
HUNTINGDON           JEFFERSON           JUNIATA
LACKAWANNA           LANCASTER           LEBANON
LEHIGH               LUZERNE             LYCOMING
MCKEAN               MIFFLIN             MONROE
MONTGOMERY           MONTOUR             NORTHAMPTON
NORTHUMBERLAND       PERRY               PHILADELPHIA
PIKE                 POTTER              SCHUYLKILL
SNYDER               SULLIVAN            SUSQUEHANNA
TIOGA                UNION               VENANGO
WAYNE                WYOMING             YORK
$$

 

Quote

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 448
NWS STORM PREDICTION CENTER NORMAN OK
325 PM EDT FRI JUL 3 2026

SEVERE THUNDERSTORM WATCH 448 IS IN EFFECT UNTIL 1100 PM EDT
FOR THE FOLLOWING LOCATIONS

NJC005-007-013-015-019-021-023-025-027-029-031-033-035-037-039-
041-040300-
/O.NEW.KWNS.SV.A.0448.260703T1925Z-260704T0300Z/

NJ
.    NEW JERSEY COUNTIES INCLUDED ARE

BURLINGTON           CAMDEN              ESSEX
GLOUCESTER           HUNTERDON           MERCER
MIDDLESEX            MONMOUTH            MORRIS
OCEAN                PASSAIC             SALEM
SOMERSET             SUSSEX              UNION
WARREN
$$

 

Quote

SEVERE THUNDERSTORM WATCH OUTLINE UPDATE FOR WS 448
NWS STORM PREDICTION CENTER NORMAN OK
325 PM EDT FRI JUL 3 2026

SEVERE THUNDERSTORM WATCH 448 IS IN EFFECT UNTIL 1100 PM EDT
FOR THE FOLLOWING LOCATIONS

DEC003-040300-
/O.NEW.KWNS.SV.A.0448.260703T1925Z-260704T0300Z/

DE
.    DELAWARE COUNTIES INCLUDED ARE

NEW CASTLE
$$

 

 

[Birds~69]

24 minutes ago, Birds~69 said:

101F/DP 75F at 3:05pm. 

About the same temp as yesterday at this time. DP may be a little lower. Underachiever...  

102F/DP 71F at 3:35pm

[LVblizzard]

Slight risk for tomorrow was expanded north and a 30% wind area was added south of route 202.