46.030°N, 91.443°W · station HYRthr · 134 years of record
84°F
HOTTEST SEP 1 SINCE 2023
forecast high · Sep 1
7-Day Forecast
NWS NDFD forecast high temperature for Hayward.
This Day in History
Every year's high on each of the next 7 forecast dates at Hayward — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.
Ranks
#15 / 61
warmest Sep 1 in 61 yrs of record
Warmest Sep 1 ever
95°F
set in 1913
Coolest Sep 1 ever
59°F
set in 1904
Forecast high 84°F — 15th warmest Sep 1 of 61 years · record 95°F (1913) · warmest since 2023.
Ranks
#16 / 60
warmest Sep 2 in 60 yrs of record
Warmest Sep 2 ever
96°F
set in 1898
Coolest Sep 2 ever
57°F
set in 1904
Forecast high 81°F — 16th warmest Sep 2 of 60 years · record 96°F (1898) · warmest since 2023.
Ranks
#15 / 62
warmest Sep 3 in 62 yrs of record
Warmest Sep 3 ever
92°F
set in 2023
Coolest Sep 3 ever
53°F
set in 1905
Forecast high 82°F — 15th warmest Sep 3 of 62 years · record 92°F (2023) · warmest since 2023.
Ranks
#16 / 59
warmest Sep 4 in 59 yrs of record
Warmest Sep 4 ever
95°F
set in 2023
Coolest Sep 4 ever
51°F
set in 2025
Forecast high 82°F — 16th warmest Sep 4 of 59 years · record 95°F (2023) · warmest since 2023.
Ranks
#13 / 59
warmest Sep 5 in 59 yrs of record
Warmest Sep 5 ever
91°F
set in 2005
Coolest Sep 5 ever
54°F
set in 2025
Forecast high 83°F — 13th warmest Sep 5 of 59 years · record 91°F (2005) · warmest since 2023.
Ranks
#17 / 60
warmest Sep 6 in 60 yrs of record
Warmest Sep 6 ever
90°F
set in 1913
Coolest Sep 6 ever
55°F
set in 1911
Forecast high 80°F — 17th warmest Sep 6 of 60 years · record 90°F (1913) · warmest since 2015.
Ranks
#38 / 62
warmest Sep 7 in 62 yrs of record
Warmest Sep 7 ever
90°F
set in 1922
Coolest Sep 7 ever
50°F
set in 1911
Forecast high 73°F — 38th warmest Sep 7 of 62 years · record 90°F (1922) · warmest since 2022.
The hottest and coldest ever recorded at Hayward in each calendar month, and for the whole 1893–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
56°FJan 24, 1942
-45°FJan 7, 1912
Feb
60°FFeb 29, 2000
-52°FFeb 16, 1936
Mar
81°FMar 26, 2007
-40°FMar 11, 1948
Apr
89°FApr 23, 1915
-6°FApr 16, 1904
May
98°FMay 28, 2006
11°FMay 4, 1907
Jun
106°FJun 1, 1934
24°FJun 9, 1937
Jul
108°FJul 12, 1936
32°FJul 24, 1913
Aug
100°FAug 8, 2005
29°FAug 26, 1915
Sep
96°FSep 2, 1898
15°FSep 28, 1893
Oct
86°FOct 2, 1914
1°FOct 25, 1933
Nov
73°FNov 1, 1933
-21°FNov 24, 1898
Dec
59°FDec 2, 1998
-42°FDec 31, 1946
All-time
108°FJul 12, 1936
-52°FFeb 16, 1936
2026 Records So Far
Records set or tied at Hayward so far this year — through Aug 26.
Record Highs in 2026
2 broke
plus 1 tied — daily record highs set this year
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
80°F
record high minimum — the night it never cooled · Jul 16, 2006
Coldest high ever
-20°F
record low maximum — the day it never warmed · Jan 5, 1912
Month
Warmest low
Coldest high
Jan
42°FJan 1, 1897
-20°FJan 5, 1912
Feb
47°FFeb 20, 2017
-13°FFeb 4, 1895
Mar
59°FMar 19, 2012
1°FMar 2, 1943
Apr
68°FApr 26, 1915
24°FApr 1, 1936
May
73°FMay 7, 1896
28°FMay 1, 1909
Jun
80°FJun 22, 2025
46°FJun 8, 1915
Jul
80°FJul 16, 2006
55°FJul 27, 2013
Aug
78°FAug 16, 1913
51°FAug 3, 1915
Sep
77°FSep 11, 2005
42°FSep 28, 1912
Oct
73°FOct 3, 2005
28°FOct 28, 1895
Nov
56°FNov 7, 2020
-3°FNov 30, 1896
Dec
42°FDec 24, 2023
-15°FDec 15, 1901
All-time
80°FJul 16, 2006
-20°FJan 5, 1912
Hot Streaks
Current run
0 days
consecutive days with a high ≥ 90°F
Longest ever
9 days
record run, ended Jul 17 2005
So far in 2026
3 days
days with a high ≥ 90°F this year
Climate Normals
Normal high & low by month, from Hayward's own 1991–2020 record. Today's normal high: 76°F · forecast is +8° vs normal.
Hayward'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 Hayward's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.