43.904°N, 92.492°W · station RSTthr · 141 years of record
88°F
HOTTEST SEP 1 SINCE 2011
forecast high · Sep 1
7-Day Forecast
NWS NDFD forecast high temperature for Rochester.
This Day in History
Every year's high on each of the next 7 forecast dates at Rochester — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.
Ranks
#5 / 114
warmest Sep 1 in 114 yrs of record
Warmest Sep 1 ever
94°F
set in 1937
Coolest Sep 1 ever
60°F
set in 1944
Forecast high 88°F — 5th warmest Sep 1 of 114 years · record 94°F (1937) · warmest since 2011.
Ranks
#13 / 115
warmest Sep 2 in 115 yrs of record
Warmest Sep 2 ever
94°F
set in 1929
Coolest Sep 2 ever
59°F
set in 1994
Forecast high 85°F — 13th warmest Sep 2 of 115 years · record 94°F (1929) · warmest since 2023.
Ranks
#19 / 115
warmest Sep 3 in 115 yrs of record
Warmest Sep 3 ever
94°F
set in 1937
Coolest Sep 3 ever
54°F
set in 1952
Forecast high 85°F — 19th warmest Sep 3 of 115 years · record 94°F (1937) · warmest since 2023.
Ranks
#14 / 115
warmest Sep 4 in 115 yrs of record
Warmest Sep 4 ever
95°F
set in 1893
Coolest Sep 4 ever
60°F
set in 1909
Forecast high 86°F — 14th warmest Sep 4 of 115 years · record 95°F (1893) · warmest since 2023.
Ranks
#9 / 115
warmest Sep 5 in 115 yrs of record
Warmest Sep 5 ever
94°F
set in 1913
Coolest Sep 5 ever
58°F
set in 2025
Forecast high 88°F — 9th warmest Sep 5 of 115 years · record 94°F (1913) · warmest since 2023.
Ranks
#27 / 115
warmest Sep 6 in 115 yrs of record
Warmest Sep 6 ever
100°F
set in 1913
Coolest Sep 6 ever
58°F
set in 1965
Forecast high 83°F — 27th warmest Sep 6 of 115 years · record 100°F (1913) · warmest since 2016.
Ranks
#42 / 115
warmest Sep 7 in 115 yrs of record
Warmest Sep 7 ever
96°F
set in 1913
Coolest Sep 7 ever
59°F
set in 1956
Forecast high 78°F — 42nd warmest Sep 7 of 115 years · record 96°F (1913) · warmest since 2022.
The hottest and coldest ever recorded at Rochester in each calendar month, and for the whole 1886–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
58°FJan 25, 1944
-42°FJan 7, 1887
Feb
69°FFeb 26, 2024
-35°FFeb 2, 1996
Mar
82°FMar 24, 1910
-31°FMar 1, 1962
Apr
92°FApr 24, 2009
5°FApr 6, 1982
May
106°FMay 31, 1934
21°FMay 3, 1910
Jun
105°FJun 27, 1934
31°FJun 9, 1937
Jul
108°FJul 14, 1936
40°FJul 17, 1911
Aug
100°FAug 3, 1930
32°FAug 30, 1915
Sep
100°FSep 6, 1913
22°FSep 28, 1893
Oct
93°FOct 3, 1997
-6°FOct 25, 1887
Nov
77°FNov 1, 1893
-24°FNov 28, 1887
Dec
64°FDec 4, 2017
-33°FDec 19, 1983
All-time
108°FJul 14, 1936
-42°FJan 7, 1887
2026 Records So Far
Records set or tied at Rochester so far this year — through Aug 30.
Record Highs in 2026
3 broke
plus 1 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
85°F
record high minimum — the night it never cooled · Jul 3, 1911
Coldest high ever
-22°F
record low maximum — the day it never warmed · Jan 6, 1912
Month
Warmest low
Coldest high
Jan
42°FJan 25, 1944
-22°FJan 6, 1912
Feb
43°FFeb 25, 2000
-20°FFeb 2, 1996
Mar
62°FMar 19, 2012
-3°FMar 2, 2014
Apr
63°FApr 26, 1912
22°FApr 1, 1975
May
74°FMay 27, 1911
33°FMay 2, 2013
Jun
77°FJun 26, 1943
46°FJun 2, 1945
Jul
85°FJul 3, 1911
58°FJul 18, 2000
Aug
78°FAug 27, 1886
55°FAug 31, 1958
Sep
74°FSep 3, 1937
34°FSep 29, 1945
Oct
71°FOct 4, 2005
21°FOct 25, 1887
Nov
57°FNov 2, 1938
-4°FNov 28, 1887
Dec
49°FDec 2, 1982
-20°FDec 23, 1983
All-time
85°FJul 3, 1911
-22°FJan 6, 1912
Hot Streaks
Current run
0 days
consecutive days with a high ≥ 90°F
Longest ever
14 days
record run, ended Jul 18 1936
So far in 2026
6 days
days with a high ≥ 90°F this year
Climate Normals
Normal high & low by month, from Rochester's own 1991–2020 record. Today's normal high: 77°F · forecast is +11° vs normal.
Rochester'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 Rochester's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.