58.354°N, 134.556°W · station JNUthr · 84 years of record
66°F
HOTTEST SEP 3 SINCE 2025
forecast high · Sep 3
7-Day Forecast
NWS NDFD forecast high temperature for Juneau.
This Day in History
Every year's high on each of the next 7 forecast dates at Juneau — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.
Ranks
#13 / 83
warmest Sep 2 in 83 yrs of record
Warmest Sep 2 ever
69°F
set in 1974
Coolest Sep 2 ever
49°F
set in 1955
Forecast high 65°F — 13th warmest Sep 2 of 83 years · record 69°F (1974) · warmest since 2025.
Ranks
#14 / 83
warmest Sep 3 in 83 yrs of record
Warmest Sep 3 ever
74°F
set in 2025
Coolest Sep 3 ever
50°F
set in 1944
Forecast high 66°F — 14th warmest Sep 3 of 83 years · record 74°F (2025) · warmest since 2025.
Ranks
#13 / 83
warmest Sep 4 in 83 yrs of record
Warmest Sep 4 ever
73°F
set in 1996
Coolest Sep 4 ever
48°F
set in 1947
Forecast high 66°F — 13th warmest Sep 4 of 83 years · record 73°F (1996) · warmest since 2025.
Ranks
#19 / 83
warmest Sep 5 in 83 yrs of record
Warmest Sep 5 ever
72°F
set in 1949
Coolest Sep 5 ever
49°F
set in 1950
Forecast high 63°F — 19th warmest Sep 5 of 83 years · record 72°F (1949) · warmest since 2025.
Ranks
#8 / 83
warmest Sep 6 in 83 yrs of record
Warmest Sep 6 ever
69°F
set in 1995
Coolest Sep 6 ever
50°F
set in 1952
Forecast high 65°F — 8th warmest Sep 6 of 83 years · record 69°F (1995) · warmest since 2025.
Ranks
#14 / 83
warmest Sep 7 in 83 yrs of record
Warmest Sep 7 ever
69°F
set in 1995
Coolest Sep 7 ever
49°F
set in 1952
Forecast high 63°F — 14th warmest Sep 7 of 83 years · record 69°F (1995) · warmest since 2025.
The hottest and coldest ever recorded at Juneau in each calendar month, and for the whole 1943–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
57°FJan 6, 1958
-22°FJan 12, 1972
Feb
57°FFeb 27, 1992
-22°FFeb 2, 1968
Mar
61°FMar 21, 1998
-15°FMar 7, 1972
Apr
74°FApr 26, 2003
6°FApr 5, 1963
May
82°FMay 27, 1947
25°FMay 2, 1956
Jun
86°FJun 13, 1969
31°FJun 7, 1955
Jul
90°FJul 7, 1975
36°FJul 8, 1950
Aug
85°FAug 14, 2026
27°FAug 25, 1948
Sep
74°FSep 3, 2025
23°FSep 24, 1972
Oct
63°FOct 1, 2018
11°FOct 30, 1984
Nov
56°FNov 2, 1949
-5°FNov 21, 1966
Dec
54°FDec 12, 1944
-21°FDec 31, 1949
All-time
90°FJul 7, 1975
-22°FFeb 2, 1968
2026 Records So Far
Records set or tied at Juneau so far this year — through Aug 30.
Record Highs in 2026
2 broke
plus 1 tied — daily record highs set this year
Monthly high record this year: Aug (85°F)
Record Lows in 2026
3 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
60°F
record high minimum — the night it never cooled · Jul 6, 2018
Coldest high ever
-7°F
record low maximum — the day it never warmed · Feb 1, 1968
Month
Warmest low
Coldest high
Jan
46°FJan 23, 2014
-4°FJan 30, 1947
Feb
47°FFeb 26, 1992
-7°FFeb 1, 1968
Mar
44°FMar 29, 2016
2°FMar 2, 1955
Apr
50°FApr 28, 2005
24°FApr 6, 1954
May
54°FMay 31, 1983
38°FMay 4, 1945
Jun
59°FJun 30, 2019
45°FJun 3, 1972
Jul
60°FJul 6, 2018
48°FJul 7, 1970
Aug
59°FAug 24, 2022
47°FAug 29, 1984
Sep
56°FSep 13, 1979
41°FSep 27, 1972
Oct
54°FOct 1, 1987
26°FOct 29, 1984
Nov
47°FNov 2, 1989
5°FNov 26, 1985
Dec
46°FDec 23, 1999
-2°FDec 8, 1948
All-time
60°FJul 6, 2018
-7°FFeb 1, 1968
Hot Streaks
Current run
0 days
consecutive days with a high ≥ 90°F
Longest ever
1 days
record run, ended Jul 7 1975
So far in 2026
0 days
days with a high ≥ 90°F this year
Climate Normals
Normal high & low by month, from Juneau's own 1991–2020 record. Today's normal high: 59°F · forecast is +7° vs normal.