42.727°N, 114.455°W · station JERthr · 112 years of record
50°F
COLDEST SEP 4 SINCE 2021
forecast low · Sep 4
7-Day Forecast
NWS NDFD forecast low temperature for Jerome.
This Day in History
Every year's low on each of the next 7 forecast dates at Jerome — toggle a day below. The forecast line shows where it lands; the ringed bar is the coldest on record.
Ranks
#85 / 109
coldest Sep 2 in 109 yrs of record
Coldest Sep 2 ever
38°F
set in 1924
Mildest Sep 2 ever
66°F
set in 1967
Forecast low 56°F — 85th coldest Sep 2 of 109 years · record 38°F (1924) · coldest since 2024.
Ranks
#66 / 106
coldest Sep 3 in 106 yrs of record
Coldest Sep 3 ever
35°F
set in 1943
Mildest Sep 3 ever
63°F
set in 1923
Forecast low 52°F — 66th coldest Sep 3 of 106 years · record 35°F (1943) · coldest since 2021.
Ranks
#47 / 107
coldest Sep 4 in 107 yrs of record
Coldest Sep 4 ever
34°F
set in 1921
Mildest Sep 4 ever
63°F
set in 1995
Forecast low 50°F — 47th coldest Sep 4 of 107 years · record 34°F (1921) · coldest since 2021.
Ranks
#51 / 108
coldest Sep 5 in 108 yrs of record
Coldest Sep 5 ever
38°F
set in 1921
Mildest Sep 5 ever
65°F
set in 1998
Forecast low 50°F — 51st coldest Sep 5 of 108 years · record 38°F (1921) · coldest since 2023.
Ranks
#79 / 108
coldest Sep 6 in 108 yrs of record
Coldest Sep 6 ever
35°F
set in 1940
Mildest Sep 6 ever
63°F
set in 1963
Forecast low 54°F — 79th coldest Sep 6 of 108 years · record 35°F (1940) · coldest since 2023.
Ranks
#87 / 107
coldest Sep 7 in 107 yrs of record
Coldest Sep 7 ever
35°F
set in 1948
Mildest Sep 7 ever
64°F
set in 2020
Forecast low 55°F — 87th coldest Sep 7 of 107 years · record 35°F (1948) · coldest since 2023.
Ranks
#53 / 108
coldest Sep 8 in 108 yrs of record
Coldest Sep 8 ever
32°F
set in 1948
Mildest Sep 8 ever
65°F
set in 1998
Forecast low 50°F — 53rd coldest Sep 8 of 108 years · record 32°F (1948) · coldest since 2020.
The hottest and coldest ever recorded at Jerome in each calendar month, and for the whole 1915–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
61°FJan 25, 1953
-25°FJan 21, 1937
Feb
69°FFeb 20, 1981
-24°FFeb 9, 1933
Mar
79°FMar 21, 1928
-1°FMar 1, 1993
Apr
90°FApr 28, 1939
12°FApr 1, 1936
May
99°FMay 28, 2003
19°FMay 1, 1953
Jun
110°FJun 19, 1940
26°FJun 18, 1928
Jul
108°FJul 28, 1934
35°FJul 14, 1983
Aug
107°FAug 12, 1940
32°FAug 31, 2006
Sep
102°FSep 5, 1955
21°FSep 25, 1926
Oct
94°FOct 1, 1992
8°FOct 30, 2019
Nov
76°FNov 4, 1931
-10°FNov 16, 1955
Dec
67°FDec 10, 1939
-24°FDec 22, 1990
All-time
110°FJun 19, 1940
-25°FJan 21, 1937
2026 Records So Far
Records set or tied at Jerome so far this year — through Aug 30.
Record Highs in 2026
4 broke
plus 1 tied — daily record highs set this year
Monthly high record this year: Mar (79°F)
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
74°F
record high minimum — the night it never cooled · Jul 25, 2026
Coldest high ever
-3°F
record low maximum — the day it never warmed · Dec 22, 1990
Month
Warmest low
Coldest high
Jan
47°FJan 1, 1997
2°FJan 12, 1963
Feb
43°FFeb 20, 1968
3°FFeb 9, 1933
Mar
49°FMar 25, 2026
23°FMar 13, 1917
Apr
58°FApr 23, 2012
30°FApr 1, 1936
May
68°FMay 24, 1929
43°FMay 6, 1965
Jun
71°FJun 28, 1973
48°FJun 6, 1932
Jul
74°FJul 25, 2026
62°FJul 17, 1987
Aug
71°FAug 11, 1969
53°FAug 20, 1968
Sep
66°FSep 2, 1967
44°FSep 30, 1982
Oct
60°FOct 1, 2011
24°FOct 31, 2002
Nov
49°FNov 14, 1967
9°FNov 29, 2015
Dec
45°FDec 10, 1929
-3°FDec 22, 1990
All-time
74°FJul 25, 2026
-3°FDec 22, 1990
Cold Streaks
Current run
0 days
consecutive days with a low ≤ 32°F
Longest ever
138 days
record run, ended Mar 31 1985
So far in 2026
60 days
days with a low ≤ 32°F this year
Climate Normals
Normal low & low by month, from Jerome's own 1991–2020 record. Today's normal low: 51°F · forecast is -1° vs normal.