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Houston, TX 29.984°N, 95.361°W · station IAHthr · 138 years of record
96°F
HOTTEST JUL 18 SINCE 2023
forecast high · Jul 18
NWS NDFD forecast high temperature for Houston.
88° MON 7/13 84° TUE 7/14 90° WED 7/15 93° THU 7/16 95° FRI 7/17 96° SAT 7/18 96° SUN 7/19 This Day in History · Jul 18
Today ranks #25 / 137
warmest Jul 18 in 137 yrs of record
Hottest Jul 18 ever 104°F
set in 1980
Coolest Jul 18 ever 78°F
set in 1952
Hottest Jul 18 — Year by Year
Every year's high on Jul 18 at Houston. The forecast line shows where today lands; the ringed bar is the hottest on record.
78 91 104 1889: 96°F 1890: 95°F 1891: 95°F 1892: 86°F 1893: 91°F 1894: 84°F 1895: 96°F 1896: 93°F 1897: 93°F 1898: 88°F 1899: 89°F 1900: 90°F 1901: 97°F 1902: 98°F 1903: 95°F 1904: 84°F 1905: 95°F 1906: 85°F 1907: 88°F 1908: 97°F 1909: 91°F 1910: 93°F 1911: 86°F 1912: 92°F 1913: 94°F 1914: 96°F 1915: 97°F 1916: 93°F 1917: 89°F 1918: 98°F 1919: 90°F 1920: 91°F 1921: 94°F 1922: 92°F 1923: 93°F 1924: 94°F 1925: 94°F 1926: 90°F 1927: 96°F 1928: 93°F 1929: 93°F 1930: 93°F 1931: 85°F 1932: 102°F 1933: 92°F 1934: 100°F 1935: 86°F 1936: 93°F 1937: 93°F 1938: 93°F 1939: 92°F 1940: 92°F 1941: 94°F 1942: 91°F 1943: 94°F 1944: 100°F 1945: 93°F 1946: 94°F 1947: 95°F 1948: 89°F 1949: 90°F 1950: 90°F 1951: 99°F 1952: 78°F 1953: 93°F 1954: 95°F 1955: 90°F 1956: 98°F 1957: 95°F 1958: 94°F 1959: 92°F 1960: 92°F 1961: 95°F 1962: 95°F 1963: 94°F 1964: 90°F 1965: 94°F 1966: 94°F 1967: 86°F 1968: 93°F 1969: 96°F 1970: 93°F 1971: 96°F 1972: 83°F 1973: 94°F 1974: 93°F 1975: 92°F 1976: 91°F 1977: 93°F 1978: 100°F 1979: 88°F 1980: 104°F 1981: 95°F 1982: 94°F 1983: 88°F 1984: 97°F 1985: 90°F 1986: 93°F 1987: 93°F 1988: 99°F 1989: 95°F 1990: 89°F 1991: 95°F 1992: 92°F 1993: 95°F 1994: 97°F 1995: 97°F 1996: 92°F 1997: 94°F 1998: 97°F 1999: 92°F 2000: 99°F 2001: 92°F 2002: 93°F 2003: 92°F 2004: 96°F 2005: 90°F 2006: 92°F 2007: 89°F 2008: 98°F 2009: 98°F 2010: 91°F 2011: 94°F 2012: 92°F 2013: 93°F 2014: 87°F 2015: 97°F 2016: 96°F 2017: 92°F 2018: 97°F 2019: 96°F 2020: 92°F 2021: 95°F 2022: 100°F 2023: 100°F 2024: 94°F 2025: 94°F 96° forecast 1889 1980 2025 Forecast high · Jul 18 96°F Hottest this date since 2023 This-date record 104°F This-date rank #25 of 137
Hottest at any time since 2026 All-time record 109°F (2000) Odds to tie/break 0.0% (daily) Period of record 1889–2026
The hottest and coldest ever recorded at Houston in each calendar month, and for the whole 1889–2026 record — with the year each was set.
Month Record High Record Low Jan 85°F 2022 5°F 1930 Feb 91°F 1986 6°F 1899 Mar 96°F 1946 21°F 1943 Apr 95°F 1987 31°F 1973 May 99°F 1996 42°F 2013 Jun 107°F 2013 52°F 1970 Jul 105°F 1954 62°F 1972 Aug 109°F 2011 57°F 1891 Sep 109°F 2000 45°F 1942 Oct 99°F 1900 29°F 1993 Nov 89°F 1921 19°F 1976 Dec 85°F 1995 7°F 1989 All-time 109°F 2000 5°F 1930
Records set or tied at Houston so far this year — through Jul 11.
Record Highs in 2026 5 broke
plus 3 tied — daily record highs set this year
Record Lows in 2026 0 broke
plus 0 tied — daily record lows set this year
Current run 21 days
consecutive days with a high ≥ 90°F
Longest ever 81 days
record run, ended Aug 31 1890
So far in 2026 42 days
days with a high ≥ 90°F this year
Normal high & low by month, from Houston's own 1991–2020 record. Today's normal high: 94°F · forecast is +2° vs normal .
Jan: 64°F Jan: 43°F Feb: 68°F Feb: 47°F Mar: 74°F Mar: 53°F Apr: 80°F Apr: 60°F May: 87°F May: 68°F Jun: 92°F Jun: 73°F Jul: 94°F Jul: 75°F Aug: 95°F Aug: 75°F Sep: 90°F Sep: 70°F Oct: 82°F Oct: 61°F Nov: 72°F Nov: 51°F Dec: 65°F Dec: 45°F J F M A M J J A S O N D Sun & Daylight Today Sunrise 5:29 AM Sunset 7:25 PM Solar noon 12:27 PM Daylight 13h 55m · losing 5 min/wk
Local standard time (no DST), level horizon.
Location 29.98°N, 95.36°W Houston'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.
Every day this year against Houston'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 Houston, coloured by temperature — 138 years of record, so heat waves read as warm streaks and cold snaps as blue.
How many days a year hit a given high at Houston — counted through Jul 18 each year, so you can see whether 2026 is running hot. Pick a threshold:
70° 75° 80° 85° 90° 95° 100° 105° 110°
42 days ≥90°F so far in 2026 — tied for the 36th most in 138 years. Normal for this point: 37 . Record: 64 in 2011.
A ready-to-share summary of Houston's outlook — post it, or link this page.
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