35.034°N, 85.200°W · station CHAthr · 148 years of record
79°F
HOTTEST OCT 23 SINCE 2020
forecast high · Oct 23
7-Day Forecast
NWS NDFD forecast high temperature for Chattanooga.
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
#130 / 147
warmest Oct 17 in 147 yrs of record
Warmest Oct 17 ever
89°F
set in 1910
Coolest Oct 17 ever
51°F
set in 2009
Forecast high 63°F — 130th warmest Oct 17 of 147 years · record 89°F (1910) · warmest since 2025.
Ranks
#112 / 147
warmest Oct 18 in 147 yrs of record
Warmest Oct 18 ever
89°F
set in 1926
Coolest Oct 18 ever
54°F
set in 1975
Forecast high 67°F — 112th warmest Oct 18 of 147 years · record 89°F (1926) · warmest since 2025.
Ranks
#85 / 147
warmest Oct 19 in 147 yrs of record
Warmest Oct 19 ever
89°F
set in 1910
Coolest Oct 19 ever
46°F
set in 1989
Forecast high 70°F — 85th warmest Oct 19 of 147 years · record 89°F (1910) · warmest since 2025.
Ranks
#70 / 147
warmest Oct 20 in 147 yrs of record
Warmest Oct 20 ever
90°F
set in 2016
Coolest Oct 20 ever
46°F
set in 1913
Forecast high 72°F — 70th warmest Oct 20 of 147 years · record 90°F (2016) · warmest since 2025.
Ranks
#61 / 147
warmest Oct 21 in 147 yrs of record
Warmest Oct 21 ever
89°F
set in 1963
Coolest Oct 21 ever
53°F
set in 1890
Forecast high 75°F — 61st warmest Oct 21 of 147 years · record 89°F (1963) · warmest since 2024.
Ranks
#36 / 147
warmest Oct 22 in 147 yrs of record
Warmest Oct 22 ever
86°F
set in 1963
Coolest Oct 22 ever
51°F
set in 1898
Forecast high 77°F — 36th warmest Oct 22 of 147 years · record 86°F (1963) · warmest since 2024.
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.
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.
Month
Record High
Record Low
Jan
78°FJan 10, 1949
-10°FJan 31, 1966
Feb
82°FFeb 22, 2023
-10°FFeb 13, 1899
Mar
89°FMar 21, 1907
2°FMar 7, 1899
Apr
93°FApr 30, 1942
25°FApr 2, 1881
May
99°FMay 29, 1941
34°FMay 1, 1879
Jun
107°FJun 30, 2012
39°FJun 1, 1889
Jul
107°FJul 1, 2012
51°FJul 15, 1967
Aug
105°FAug 4, 1947
50°FAug 31, 1946
Sep
104°FSep 5, 1925
36°FSep 30, 1967
Oct
100°FOct 2, 2019
22°FOct 30, 1952
Nov
86°FNov 1, 2016
4°FNov 25, 1950
Dec
78°FDec 7, 1951
-2°FDec 13, 1962
All-time
107°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
Month
Warmest low
Coldest high
Jan
65°FJan 22, 1937
10°FJan 11, 1886
Feb
66°FFeb 21, 2018
13°FFeb 8, 1895
Mar
68°FMar 20, 1907
23°FMar 2, 1980
Apr
69°FApr 28, 1899
38°FApr 5, 1891
May
75°FMay 25, 1902
48°FMay 7, 1917
Jun
84°FJun 29, 1936
61°FJun 2, 1907
Jul
86°FJul 9, 1888
68°FJul 9, 1892
Aug
80°FAug 4, 1935
66°FAug 27, 1944
Sep
80°FSep 4, 1925
53°FSep 30, 1920
Oct
75°FOct 10, 2017
40°FOct 31, 1890
Nov
68°FNov 1, 1971
19°FNov 25, 1950
Dec
66°FDec 7, 1951
12°FDec 12, 1962
All-time
86°FJul 9, 1888
10°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.
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.
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.