41.484°N, 120.561°W · station AATthr · 92 years of record
76°F
HOTTEST OCT 17 SINCE 2022
forecast high · Oct 17
7-Day Forecast
NWS NDFD forecast high temperature for Alturas.
This Day in History
Every year's high on each of the next 7 forecast dates at Alturas — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.
Ranks
#16 / 86
warmest Oct 17 in 86 yrs of record
Warmest Oct 17 ever
85°F
set in 1959
Coolest Oct 17 ever
32°F
set in 1971
Forecast high 76°F — 16th warmest Oct 17 of 86 years · record 85°F (1959) · warmest since 2022.
Ranks
#28 / 86
warmest Oct 18 in 86 yrs of record
Warmest Oct 18 ever
84°F
set in 1963
Coolest Oct 18 ever
35°F
set in 1984
Forecast high 75°F — 28th warmest Oct 18 of 86 years · record 84°F (1963) · warmest since 2023.
Ranks
#53 / 88
warmest Oct 19 in 88 yrs of record
Warmest Oct 19 ever
84°F
set in 1961
Coolest Oct 19 ever
39°F
set in 1984
Forecast high 65°F — 53rd warmest Oct 19 of 88 years · record 84°F (1961) · warmest since 2023.
Ranks
#68 / 87
warmest Oct 20 in 87 yrs of record
Warmest Oct 20 ever
81°F
set in 1988
Coolest Oct 20 ever
35°F
set in 1984
Forecast high 59°F — 68th warmest Oct 20 of 87 years · record 81°F (1988) · warmest since 2025.
Ranks
#71 / 87
warmest Oct 21 in 87 yrs of record
Warmest Oct 21 ever
86°F
set in 2003
Coolest Oct 21 ever
40°F
set in 1984
Forecast high 59°F — 71st warmest Oct 21 of 87 years · record 86°F (2003) · warmest since 2025.
Ranks
#70 / 89
warmest Oct 22 in 89 yrs of record
Warmest Oct 22 ever
84°F
set in 1964
Coolest Oct 22 ever
42°F
set in 1970
Forecast high 57°F — 70th warmest Oct 22 of 89 years · record 84°F (1964) · warmest since 2025.
Ranks
#71 / 89
warmest Oct 23 in 89 yrs of record
Warmest Oct 23 ever
82°F
set in 1937
Coolest Oct 23 ever
41°F
set in 1975
Forecast high 54°F — 71st warmest Oct 23 of 89 years · record 82°F (1937) · warmest since 2025.
The hottest and coldest ever recorded at Alturas in each calendar month, and for the whole 1935–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
69°FJan 21, 1961
-32°FJan 20, 1937
Feb
72°FFeb 28, 1986
-33°FFeb 5, 1989
Mar
82°FMar 30, 1966
-7°FMar 1, 1971
Apr
85°FApr 28, 1987
7°FApr 5, 1997
May
95°FMay 29, 1983
14°FMay 6, 2010
Jun
105°FJun 28, 2021
21°FJun 18, 1973
Jul
107°FJul 19, 1960
28°FJul 1, 1976
Aug
106°FAug 4, 1961
26°FAug 23, 1960
Sep
106°FSep 4, 1955
15°FSep 30, 1950
Oct
93°FOct 15, 1961
0°FOct 31, 2002
Nov
82°FNov 1, 1962
-17°FNov 12, 1985
Dec
71°FDec 4, 1939
-34°FDec 9, 1972
All-time
107°FJul 19, 1960
-34°FDec 9, 1972
2026 Records So Far
Records set or tied at Alturas so far this year — through Oct 15.
Record Highs in 2026
6 broke
plus 3 tied — daily record highs set this year
Monthly high record this year: Mar (82°F)
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
68°F
record high minimum — the night it never cooled · Jul 17, 2014
Coldest high ever
-1°F
record low maximum — the day it never warmed · Dec 22, 1990
Month
Warmest low
Coldest high
Jan
48°FJan 1, 1997
0°FJan 7, 1937
Feb
44°FFeb 4, 1963
9°FFeb 6, 1989
Mar
45°FMar 13, 2003
25°FMar 3, 1976
Apr
55°FApr 29, 1939
32°FApr 1, 1982
May
57°FMay 31, 1986
34°FMay 3, 1964
Jun
62°FJun 10, 1955
40°FJun 1, 1971
Jul
68°FJul 17, 2014
55°FJul 3, 1978
Aug
65°FAug 15, 1992
53°FAug 20, 1968
Sep
62°FSep 5, 1998
42°FSep 27, 1986
Oct
56°FOct 24, 1977
30°FOct 29, 1971
Nov
48°FNov 3, 1941
22°FNov 24, 2010
Dec
45°FDec 22, 1955
-1°FDec 22, 1990
All-time
68°FJul 17, 2014
-1°FDec 22, 1990
Hot Streaks
Current run
0 days
consecutive days with a high ≥ 90°F
Longest ever
32 days
record run, ended Aug 15 1971
So far in 2026
40 days
days with a high ≥ 90°F this year
Climate Normals
Normal high & low by month, from Alturas's own 1991–2020 record. Today's normal high: 67°F · forecast is +9° vs normal.
Alturas'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 Alturas's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.