39.873°N, 75.227°W · station PHLthr · 155 years of record
66°F
HOTTEST OCT 23 SINCE 2024
forecast high · Oct 23
7-Day Forecast
NWS NDFD forecast high temperature for Philadelphia.
This Day in History
Every year's high on each of the next 7 forecast dates at Philadelphia — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.
Ranks
#142 / 152
warmest Oct 17 in 152 yrs of record
Warmest Oct 17 ever
89°F
set in 1938
Coolest Oct 17 ever
48°F
set in 2009
Forecast high 54°F — 142nd warmest Oct 17 of 152 years · record 89°F (1938) · warmest since 2025.
Ranks
#136 / 152
warmest Oct 18 in 152 yrs of record
Warmest Oct 18 ever
84°F
set in 1908
Coolest Oct 18 ever
48°F
set in 1909
Forecast high 57°F — 136th warmest Oct 18 of 152 years · record 84°F (1908) · warmest since 2025.
Ranks
#104 / 152
warmest Oct 19 in 152 yrs of record
Warmest Oct 19 ever
85°F
set in 1908
Coolest Oct 19 ever
49°F
set in 1972
Forecast high 60°F — 104th warmest Oct 19 of 152 years · record 85°F (1908) · warmest since 2025.
Ranks
#85 / 152
warmest Oct 20 in 152 yrs of record
Warmest Oct 20 ever
86°F
set in 2016
Coolest Oct 20 ever
40°F
set in 1972
Forecast high 64°F — 85th warmest Oct 20 of 152 years · record 86°F (2016) · warmest since 2025.
Ranks
#70 / 152
warmest Oct 21 in 152 yrs of record
Warmest Oct 21 ever
86°F
set in 1947
Coolest Oct 21 ever
46°F
set in 1940
Forecast high 65°F — 70th warmest Oct 21 of 152 years · record 86°F (1947) · warmest since 2025.
Ranks
#88 / 152
warmest Oct 22 in 152 yrs of record
Warmest Oct 22 ever
83°F
set in 1984
Coolest Oct 22 ever
48°F
set in 1887
Forecast high 63°F — 88th warmest Oct 22 of 152 years · record 83°F (1984) · warmest since 2025.
Ranks
#65 / 152
warmest Oct 23 in 152 yrs of record
Warmest Oct 23 ever
87°F
set in 1947
Coolest Oct 23 ever
40°F
set in 1889
Forecast high 66°F — 65th warmest Oct 23 of 152 years · record 87°F (1947) · warmest since 2024.
The hottest and coldest ever recorded at Philadelphia in each calendar month, and for the whole 1872–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
74°FJan 26, 1950
-7°FJan 17, 1982
Feb
79°FFeb 25, 1930
-11°FFeb 9, 1934
Mar
87°FMar 29, 1945
5°FMar 5, 1872
Apr
95°FApr 17, 2002
14°FApr 1, 1923
May
98°FMay 19, 2026
28°FMay 11, 1966
Jun
102°FJun 29, 1934
44°FJun 1, 1945
Jul
104°FJul 10, 1936
51°FJul 21, 1966
Aug
106°FAug 7, 1918
44°FAug 29, 1986
Sep
102°FSep 7, 1881
35°FSep 25, 1963
Oct
96°FOct 5, 1941
25°FOct 25, 1962
Nov
84°FNov 1, 1950
8°FNov 30, 1875
Dec
73°FDec 4, 1998
-5°FDec 30, 1880
All-time
106°FAug 7, 1918
-11°FFeb 9, 1934
2026 Records So Far
Records set or tied at Philadelphia so far this year — through Oct 15.
Record Highs in 2026
11 broke
plus 1 tied — daily record highs set this year
Monthly high record this year: May (98°F)
Record Lows in 2026
0 broke
plus 0 tied — daily record lows set this year
Record Warm Nights & Cold Days
Two more daily records, kept separate from the rankings: the warmest a night has ever stayed (record high minimum) and the coldest a day has ever gotten (record low maximum) — the flip side of the usual record high and low.
Warmest low ever
83°F
record high minimum — the night it never cooled · Jul 24, 2010
Coldest high ever
5°F
record low maximum — the day it never warmed · Dec 30, 1880
Month
Warmest low
Coldest high
Jan
60°FJan 8, 1998
6°FJan 19, 1994
Feb
54°FFeb 17, 1891
5°FFeb 10, 1899
Mar
63°FMar 29, 1907
15°FMar 13, 1888
Apr
70°FApr 19, 1896
33°FApr 5, 1881
May
78°FMay 31, 1895
45°FMay 5, 1917
Jun
82°FJun 6, 1925
49°FJun 2, 1907
Jul
83°FJul 24, 2010
61°FJul 8, 1891
Aug
82°FAug 1, 1917
59°FAug 26, 1908
Sep
80°FSep 9, 2016
52°FSep 28, 1984
Oct
74°FOct 8, 2017
40°FOct 23, 1889
Nov
67°FNov 2, 1971
18°FNov 30, 1875
Dec
62°FDec 24, 2015
5°FDec 30, 1880
All-time
83°FJul 24, 2010
5°FDec 30, 1880
Hot Streaks
Current run
0 days
consecutive days with a high ≥ 90°F
Longest ever
18 days
record run, ended Aug 15 1988
So far in 2026
41 days
days with a high ≥ 90°F this year
Climate Normals
Normal high & low by month, from Philadelphia's own 1991–2020 record. Today's normal high: 64°F · forecast is +2° vs normal.
Philadelphia's observed daily high for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
2026 So Far
Every day this year against Philadelphia's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.
Each cell is one day's high at Philadelphia, coloured by temperature — 155 years of record, so heat waves read as warm streaks and cold snaps as blue.
Days Above the Mark
How many days a year hit a given high at Philadelphia — counted through Oct 23 each year, so you can see whether 2026 is running hot. Pick a threshold:
41 days ≥90°F so far in 2026 — tied for the 9th most in 155 years. Normal for this point: 22. Record: 55 in 2010.
Share Card
A ready-to-share summary of Philadelphia's outlook — post it, or link this page.