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Tennessee · THREADEX · 1879–2026

Chattanooga, TN

35.034°N, 85.200°W · station CHAthr · 148 years of record
79°F
forecast high · Oct 23

7-Day Forecast

NWS NDFD forecast high temperature for Chattanooga.
63°SAT10/1767°SUN10/1870°MON10/1972°TUE10/2075°WED10/2177°THU10/2279°FRI10/23

This Day in History

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

Ranks

#16 / 147
warmest Oct 23 in 147 yrs of record

Warmest Oct 23 ever

88°F
set in 1941

Coolest Oct 23 ever

44°F
set in 1937
Forecast high 79°F — 16th warmest Oct 23 of 147 years · record 88°F (1941) · warmest since 2020.
1879: 62°F1880: 66°F1881: 62°F1882: 69°F1883: 65°F1884: 66°F1885: 64°F1886: 77°F1887: 66°F1888: 58°F1889: 59°F1890: 58°F1891: 68°F1892: 79°F1893: 80°F1894: 84°F1895: 74°F1896: 78°F1897: 73°F1898: 63°F1899: 74°F1900: 80°F1901: 79°F1902: 74°F1903: 61°F1904: 62°F1905: 64°F1906: 80°F1907: 75°F1908: 70°F1909: 70°F1910: 69°F1911: 67°F1912: 66°F1913: 58°F1914: 76°F1915: 74°F1916: 60°F1917: 50°F1918: 66°F1919: 70°F1920: 80°F1921: 78°F1922: 63°F1923: 57°F1924: 59°F1925: 67°F1926: 60°F1927: 84°F1928: 71°F1929: 59°F1930: 52°F1931: 79°F1932: 72°F1933: 74°F1934: 83°F1935: 78°F1936: 79°F1937: 44°F1938: 71°F1939: 86°F1940: 76°F1941: 88°F1942: 62°F1943: 74°F1944: 70°F1945: 62°F1946: 72°F1947: 79°F1948: 53°F1949: 75°F1950: 76°F1951: 73°F1952: 68°F1953: 85°F1954: 77°F1955: 73°F1956: 71°F1957: 70°F1958: 76°F1959: 67°F1960: 66°F1961: 76°F1962: 65°F1963: 80°F1964: 76°F1965: 68°F1966: 75°F1967: 75°F1968: 75°F1969: 58°F1970: 71°F1971: 70°F1972: 71°F1973: 76°F1974: 69°F1975: 76°F1976: 66°F1977: 74°F1978: 82°F1979: 65°F1980: 71°F1981: 61°F1982: 64°F1983: 62°F1984: 69°F1985: 67°F1986: 68°F1987: 69°F1988: 62°F1989: 74°F1990: 68°F1991: 72°F1992: 75°F1993: 69°F1994: 73°F1995: 73°F1996: 78°F1997: 65°F1998: 65°F1999: 58°F2000: 82°F2001: 83°F2002: 68°F2003: 76°F2004: 75°F2005: 71°F2006: 51°F2007: 74°F2008: 70°F2009: 78°F2010: 78°F2011: 68°F2012: 79°F2013: 57°F2014: 67°F2015: 79°F2016: 67°F2017: 71°F2018: 69°F2019: 70°F2020: 83°F2021: 72°F2022: 77°F2023: 78°F2024: 78°F2025: 76°F79° forecast4045505560657075808590188018901900191019201930194019501960197019801990200020102020
📖 Chattanooga's full Climate Almanac →

The Numbers

Forecast high · Oct 2379°F
Hottest this date since2020
This-date record88°F
This-date rank#16 of 147
Hottest at any time since2026
All-time record107°F (2012)
Odds to tie/break0.0% (daily)
Period of record1879–2026

Record Book

The hottest and coldest ever recorded at Chattanooga in each calendar month, and for the whole 1879–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan78°FJan 10, 1949-10°FJan 31, 1966
Feb82°FFeb 22, 2023-10°FFeb 13, 1899
Mar89°FMar 21, 19072°FMar 7, 1899
Apr93°FApr 30, 194225°FApr 2, 1881
May99°FMay 29, 194134°FMay 1, 1879
Jun107°FJun 30, 201239°FJun 1, 1889
Jul107°FJul 1, 201251°FJul 15, 1967
Aug105°FAug 4, 194750°FAug 31, 1946
Sep104°FSep 5, 192536°FSep 30, 1967
Oct100°FOct 2, 201922°FOct 30, 1952
Nov86°FNov 1, 20164°FNov 25, 1950
Dec78°FDec 7, 1951-2°FDec 13, 1962
All-time107°FJun 30, 2012-10°FFeb 13, 1899

2026 Records So Far

Records set or tied at Chattanooga so far this year — through Oct 15.

Record Highs in 2026

9 broke
plus 5 tied — daily record highs set this year

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

86°F
record high minimum — the night it never cooled · Jul 9, 1888

Coldest high ever

10°F
record low maximum — the day it never warmed · Jan 11, 1886
MonthWarmest lowColdest high
Jan65°FJan 22, 193710°FJan 11, 1886
Feb66°FFeb 21, 201813°FFeb 8, 1895
Mar68°FMar 20, 190723°FMar 2, 1980
Apr69°FApr 28, 189938°FApr 5, 1891
May75°FMay 25, 190248°FMay 7, 1917
Jun84°FJun 29, 193661°FJun 2, 1907
Jul86°FJul 9, 188868°FJul 9, 1892
Aug80°FAug 4, 193566°FAug 27, 1944
Sep80°FSep 4, 192553°FSep 30, 1920
Oct75°FOct 10, 201740°FOct 31, 1890
Nov68°FNov 1, 197119°FNov 25, 1950
Dec66°FDec 7, 195112°FDec 12, 1962
All-time86°FJul 9, 188810°FJan 11, 1886

Hot Streaks

Current run

3 days
consecutive days with a high ≥ 90°F

Longest ever

50 days
record run, ended Sep 22 2026

So far in 2026

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

Climate Normals

Normal high & low by month, from Chattanooga's own 1991–2020 record. Today's normal high: 71°F · forecast is +8° vs normal.
Jan: 51°FJan: 32°FFeb: 56°FFeb: 35°FMar: 64°FMar: 42°FApr: 74°FApr: 50°FMay: 81°FMay: 59°FJun: 88°FJun: 67°FJul: 90°FJul: 71°FAug: 90°FAug: 70°FSep: 84°FSep: 63°FOct: 74°FOct: 51°FNov: 62°FNov: 40°FDec: 54°FDec: 35°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:47 AM
Sunset5:05 PM
Solar noon11:26 AM
Daylight11h 17m · losing 15 min/wk
Local standard time (no DST), level horizon.

Location

35.03°N, 85.20°W

Nearby Stations

Knoxville, TN87 mi NEOak Ridge, TN87 mi NEHuntsville, AL93 mi WAtlanta, GA106 mi SENashville, TN111 mi NWAthens, GA130 mi SE

The Last 6 Weeks

Chattanooga'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.
Chattanooga, TN — last six weeks of daily high

2026 So Far

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

Every Day Since 1879

Each cell is one day's high at Chattanooga, coloured by temperature — 148 years of record, so heat waves read as warm streaks and cold snaps as blue.
Chattanooga, TN daily high heat map 1879–2026

Days Above the Mark

How many days a year hit a given high at Chattanooga — counted through Oct 23 each year, so you can see whether 2026 is running hot. Pick a threshold:
88 days ≥90°F so far in 2026 — the 7th most in 148 years. Normal for this point: 47. Record: 101 in 2016.

Share Card

A ready-to-share summary of Chattanooga's outlook — post it, or link this page.
Chattanooga, TN hot share card
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