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Virginia · THREADEX · 1960–2026

Sterling-Dulles Airport, VA

38.935°N, 77.447°W · station IADthr · 67 years of record
93°F
forecast high · Sep 3

7-Day Forecast

NWS NDFD forecast high temperature for Sterling-Dulles Airport.
92°TUE9/192°WED9/293°THU9/391°FRI9/486°SAT9/583°SUN9/683°MON9/7

This Day in History

Every year's high on each of the next 7 forecast dates at Sterling-Dulles Airport — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.

Ranks

#6 / 64
warmest Sep 3 in 64 yrs of record

Warmest Sep 3 ever

99°F
set in 1980

Coolest Sep 3 ever

73°F
set in 1986
Forecast high 93°F — 6th warmest Sep 3 of 64 years · record 99°F (1980) · warmest since 2023.
1962: 75°F1963: 87°F1964: 79°F1965: 78°F1966: 92°F1967: 76°F1968: 81°F1969: 81°F1970: 82°F1971: 84°F1972: 78°F1973: 92°F1974: 85°F1975: 80°F1976: 75°F1977: 87°F1978: 85°F1979: 85°F1980: 99°F1981: 78°F1982: 83°F1983: 89°F1984: 87°F1985: 91°F1986: 73°F1987: 80°F1988: 81°F1989: 80°F1990: 82°F1991: 83°F1992: 79°F1993: 96°F1994: 76°F1995: 85°F1996: 85°F1997: 75°F1998: 85°F1999: 86°F2000: 86°F2001: 79°F2002: 89°F2003: 81°F2004: 84°F2005: 83°F2006: 80°F2007: 91°F2008: 90°F2009: 80°F2010: 90°F2011: 80°F2012: 83°F2013: 86°F2014: 85°F2015: 94°F2016: 80°F2017: 78°F2018: 94°F2019: 87°F2020: 87°F2021: 79°F2022: 88°F2023: 99°F2024: 78°F2025: 83°F93° forecast707580859095100197019801990200020102020
📖 Sterling-Dulles Airport's full Climate Almanac →

The Numbers

Forecast high · Sep 393°F
Hottest this date since2023
This-date record99°F
This-date rank#6 of 64
Hottest at any time since2026
All-time record105°F (2011)
Odds to tie/break6.0% (daily)
Period of record1960–2026

Record Book

The hottest and coldest ever recorded at Sterling-Dulles Airport in each calendar month, and for the whole 1960–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan79°FJan 26, 2024-18°FJan 22, 1984
Feb80°FFeb 21, 2018-14°FFeb 18, 1979
Mar89°FMar 12, 1990-1°FMar 15, 1993
Apr93°FApr 25, 196017°FApr 1, 1969
May97°FMay 29, 196928°FMay 7, 1970
Jun102°FJun 29, 201236°FJun 8, 1977
Jul105°FJul 22, 201141°FJul 1, 1988
Aug104°FAug 20, 198338°FAug 29, 1982
Sep100°FSep 6, 202330°FSep 24, 1974
Oct96°FOct 2, 201915°FOct 24, 1969
Nov84°FNov 2, 19719°FNov 24, 1989
Dec79°FDec 6, 1998-4°FDec 25, 1989
All-time105°FJul 22, 2011-18°FJan 22, 1984

2026 Records So Far

Records set or tied at Sterling-Dulles Airport so far this year — through Aug 30.

Record Highs in 2026

13 broke
plus 2 tied — daily record highs set this year

Record Lows in 2026

1 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

81°F
record high minimum — the night it never cooled · Jul 16, 2026

Coldest high ever

6°F
record low maximum — the day it never warmed · Jan 19, 1994
MonthWarmest lowColdest high
Jan62°FJan 8, 19986°FJan 19, 1994
Feb59°FFeb 21, 20188°FFeb 18, 1979
Mar66°FMar 30, 202518°FMar 1, 1980
Apr68°FApr 27, 201138°FApr 8, 1972
May71°FMay 31, 199147°FMay 1, 1963
Jun78°FJun 23, 202456°FJun 3, 1997
Jul81°FJul 16, 202666°FJul 13, 1990
Aug79°FAug 8, 200764°FAug 12, 1979
Sep77°FSep 3, 199347°FSep 28, 1984
Oct73°FOct 8, 201739°FOct 30, 2002
Nov68°FNov 1, 197130°FNov 30, 1976
Dec63°FDec 24, 201511°FDec 25, 1983
All-time81°FJul 16, 20266°FJan 19, 1994

Hot Streaks

Current run

0 days
consecutive days with a high ≥ 90°F

Longest ever

16 days
record run, ended Aug 5 1995

So far in 2026

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

Climate Normals

Normal high & low by month, from Sterling-Dulles Airport's own 1991–2020 record. Today's normal high: 84°F · forecast is +9° vs normal.
Jan: 43°FJan: 25°FFeb: 46°FFeb: 27°FMar: 55°FMar: 33°FApr: 67°FApr: 43°FMay: 75°FMay: 53°FJun: 83°FJun: 62°FJul: 88°FJul: 67°FAug: 86°FAug: 65°FSep: 79°FSep: 58°FOct: 68°FOct: 45°FNov: 57°FNov: 35°FDec: 47°FDec: 29°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:38 AM
Sunset6:41 PM
Solar noon12:09 PM
Daylight13h 02m · losing 17 min/wk
Local standard time (no DST), level horizon.

Location

38.94°N, 77.45°W

Nearby Stations

Washington, DC23 mi EMartinsburg, WV43 mi NWBaltimore, MD44 mi EBaltimore Downtown, MD50 mi EAnnapolis, MD51 mi EHagerstown, MD55 mi N

The Last 6 Weeks

Sterling-Dulles Airport'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.
Sterling-Dulles Airport, VA — last six weeks of daily high

2026 So Far

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

Every Day Since 1960

Each cell is one day's high at Sterling-Dulles Airport, coloured by temperature — 67 years of record, so heat waves read as warm streaks and cold snaps as blue.
Sterling-Dulles Airport, VA daily high heat map 1960–2026

Days Above the Mark

How many days a year hit a given high at Sterling-Dulles Airport — counted through Sep 3 each year, so you can see whether 2026 is running hot. Pick a threshold:
26 days ≥90°F so far in 2026 — tied for the 34th most in 67 years. Normal for this point: 28. Record: 51 in 1988.

Share Card

A ready-to-share summary of Sterling-Dulles Airport's outlook — post it, or link this page.
Sterling-Dulles Airport, VA hot share card
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See Sterling-Dulles Airport on coldestsince.com →