Delaware · THREADEX · 1894–2026

Wilmington, DE

39.674°N, 75.606°W · station ILGthr · 133 years of record
97°F
forecast high · Jul 15

7-Day Forecast

NWS NDFD forecast high temperature for Wilmington.
84°MON7/1390°TUE7/1497°WED7/1593°THU7/1692°FRI7/1791°SAT7/1885°SUN7/19

This Day in History · Jul 15

Today ranks

#3 / 112
warmest Jul 15 in 112 yrs of record

Hottest Jul 15 ever

99°F
set in 1995

Coolest Jul 15 ever

64°F
set in 1926

Hottest Jul 15 — Year by Year

Every year's high on Jul 15 at Wilmington. The forecast line shows where today lands; the ringed bar is the hottest on record.
6482991894: 96°F1895: 80°F1896: 92°F1917: 82°F1918: 88°F1919: 78°F1920: 87°F1921: 86°F1922: 76°F1923: 82°F1924: 85°F1925: 84°F1926: 64°F1927: 91°F1928: 78°F1929: 83°F1930: 78°F1931: 89°F1932: 91°F1933: 78°F1934: 92°F1935: 90°F1936: 90°F1937: 86°F1938: 87°F1939: 86°F1940: 79°F1941: 79°F1942: 90°F1943: 89°F1944: 82°F1945: 77°F1946: 79°F1947: 84°F1948: 81°F1949: 87°F1950: 71°F1951: 88°F1952: 94°F1953: 92°F1954: 86°F1955: 94°F1956: 85°F1957: 89°F1958: 88°F1959: 78°F1960: 78°F1961: 81°F1962: 86°F1963: 88°F1964: 86°F1965: 84°F1966: 82°F1967: 81°F1968: 83°F1969: 87°F1970: 85°F1971: 85°F1972: 91°F1973: 83°F1974: 91°F1975: 84°F1976: 80°F1977: 93°F1978: 82°F1979: 91°F1980: 88°F1981: 85°F1982: 90°F1983: 97°F1984: 91°F1985: 92°F1986: 86°F1987: 77°F1988: 93°F1989: 82°F1990: 87°F1991: 86°F1992: 97°F1993: 87°F1994: 90°F1995: 99°F1996: 89°F1997: 99°F1998: 86°F1999: 95°F2000: 79°F2001: 84°F2002: 87°F2003: 80°F2004: 78°F2005: 86°F2006: 80°F2007: 93°F2008: 84°F2009: 86°F2010: 89°F2011: 86°F2012: 82°F2013: 95°F2014: 89°F2015: 82°F2016: 93°F2017: 88°F2018: 82°F2019: 87°F2020: 87°F2021: 92°F2022: 89°F2023: 90°F2024: 92°F2025: 90°F97° forecast189419952025

The Numbers

Forecast high · Jul 1597°F
Hottest this date since1997
This-date record99°F
This-date rank#3 of 112
Hottest at any time since2026
All-time record107°F (1918)
Odds to tie/break86.0% (daily)
Period of record1894–2026

Record Book

The hottest and coldest ever recorded at Wilmington in each calendar month, and for the whole 1894–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan75°F1950-14°F1984
Feb78°F1930-15°F1934
Mar86°F19482°F1984
Apr97°F189611°F1923
May98°F189530°F1978
Jun102°F189440°F1945
Jul103°F193648°F1988
Aug107°F191843°F1982
Sep100°F195332°F1940
Oct98°F201923°F1936
Nov85°F195011°F1929
Dec75°F1998-7°F1917
All-time107°F1918-15°F1934

2026 Records So Far

Records set or tied at Wilmington so far this year — through Jul 11.

Record Highs in 2026

8 broke
plus 5 tied — daily record highs set this year
Monthly high record this year: Jul (103°F)

Record Lows in 2026

0 broke
plus 0 tied — daily record lows set this year

Hot Streaks

Current run

1 days
consecutive days with a high ≥ 90°F

Longest ever

16 days
record run, ended Aug 18 1895

So far in 2026

18 days
days with a high ≥ 90°F this year

Climate Normals

Normal high & low by month, from Wilmington's own 1991–2020 record. Today's normal high: 87°F · forecast is +10° vs normal.
Jan: 41°FJan: 25°FFeb: 44°FFeb: 27°FMar: 52°FMar: 34°FApr: 64°FApr: 43°FMay: 73°FMay: 53°FJun: 82°FJun: 63°FJul: 87°FJul: 68°FAug: 85°FAug: 66°FSep: 78°FSep: 59°FOct: 67°FOct: 47°FNov: 56°FNov: 37°FDec: 46°FDec: 30°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise4:45 AM
Sunset7:30 PM
Solar noon12:08 PM
Daylight14h 45m · losing 7 min/wk
Local standard time (no DST), level horizon.

Location

39.67°N, 75.61°W

Nearby Stations

Philadelphia, PA24 mi NEReading, PA51 mi NWAtlantic City, NJ57 mi ETrenton, NJ59 mi NEBaltimore Downtown, MD60 mi WAtlantic City Marina, NJ66 mi E

The Last 6 Weeks

Wilmington'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.
Wilmington, DE — last six weeks of daily high

2026 So Far

Every day this year against Wilmington's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.
Wilmington, DE — 2026 daily high trace
Download year chart

Every Day Since 1894

Each cell is one day's high at Wilmington, coloured by temperature — 133 years of record, so heat waves read as warm streaks and cold snaps as blue.
Wilmington, DE daily high heat map 1894–2026

Days Above the Mark

How many days a year hit a given high at Wilmington — counted through Jul 15 each year, so you can see whether 2026 is running hot. Pick a threshold:
18 days ≥90°F so far in 2026 — tied for the 7th most in 133 years. Normal for this point: 7. Record: 28 in 1896.

Share Card

A ready-to-share summary of Wilmington's outlook — post it, or link this page.
Wilmington, DE hot share card
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part of Weather Trader · supported by Substack Subscribers · data: NWS NDFD forecast + NOAA/ACIS ThreadEx records · updated 2026-07-13T12:58:10Z
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