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Idaho · THREADEX · 1915–2026

Jerome, ID

42.727°N, 114.455°W · station JERthr · 112 years of record
50°F
forecast low · Sep 4

7-Day Forecast

NWS NDFD forecast low temperature for Jerome.
56°WED9/252°THU9/350°FRI9/450°SAT9/554°SUN9/655°MON9/750°TUE9/8

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

#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.
1916: 47°F1919: 55°F1920: 48°F1921: 34°F1922: 55°F1923: 55°F1924: 56°F1925: 49°F1926: 44°F1927: 53°F1928: 45°F1929: 37°F1930: 53°F1931: 53°F1932: 38°F1933: 51°F1934: 56°F1935: 47°F1936: 45°F1937: 54°F1938: 58°F1939: 52°F1940: 55°F1941: 46°F1942: 49°F1943: 35°F1944: 43°F1945: 60°F1946: 53°F1947: 50°F1948: 44°F1949: 51°F1951: 42°F1952: 50°F1953: 38°F1954: 42°F1955: 48°F1956: 39°F1957: 46°F1958: 52°F1959: 54°F1960: 61°F1961: 41°F1962: 44°F1963: 54°F1964: 39°F1965: 35°F1966: 50°F1967: 53°F1968: 41°F1969: 41°F1970: 51°F1971: 38°F1972: 54°F1973: 44°F1974: 57°F1975: 39°F1976: 56°F1977: 50°F1978: 60°F1979: 50°F1980: 46°F1981: 55°F1982: 48°F1983: 50°F1984: 45°F1985: 43°F1986: 51°F1987: 45°F1988: 50°F1989: 41°F1990: 58°F1991: 52°F1992: 54°F1993: 58°F1994: 48°F1995: 63°F1996: 47°F1997: 56°F1998: 59°F1999: 38°F2000: 43°F2001: 60°F2002: 62°F2003: 60°F2004: 42°F2005: 53°F2006: 60°F2007: 55°F2008: 40°F2009: 55°F2010: 56°F2011: 43°F2012: 48°F2013: 63°F2014: 38°F2015: 50°F2016: 52°F2017: 58°F2018: 56°F2019: 59°F2020: 55°F2021: 42°F2022: 63°F2023: 55°F2024: 59°F2025: 63°F50° forecast30354045505560651920193019401960197019801990200020102020
📖 Jerome's full Climate Almanac →

The Numbers

Forecast low · Sep 450°F
Coldest this date since2021
This-date record34°F
This-date rank#47 of 107
Coldest at any time since2026
All-time record-25°F (1937)
Odds to tie/break0.0% (daily)
Period of record1915–2026

Record Book

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.
MonthRecord HighRecord Low
Jan61°FJan 25, 1953-25°FJan 21, 1937
Feb69°FFeb 20, 1981-24°FFeb 9, 1933
Mar79°FMar 21, 1928-1°FMar 1, 1993
Apr90°FApr 28, 193912°FApr 1, 1936
May99°FMay 28, 200319°FMay 1, 1953
Jun110°FJun 19, 194026°FJun 18, 1928
Jul108°FJul 28, 193435°FJul 14, 1983
Aug107°FAug 12, 194032°FAug 31, 2006
Sep102°FSep 5, 195521°FSep 25, 1926
Oct94°FOct 1, 19928°FOct 30, 2019
Nov76°FNov 4, 1931-10°FNov 16, 1955
Dec67°FDec 10, 1939-24°FDec 22, 1990
All-time110°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
MonthWarmest lowColdest high
Jan47°FJan 1, 19972°FJan 12, 1963
Feb43°FFeb 20, 19683°FFeb 9, 1933
Mar49°FMar 25, 202623°FMar 13, 1917
Apr58°FApr 23, 201230°FApr 1, 1936
May68°FMay 24, 192943°FMay 6, 1965
Jun71°FJun 28, 197348°FJun 6, 1932
Jul74°FJul 25, 202662°FJul 17, 1987
Aug71°FAug 11, 196953°FAug 20, 1968
Sep66°FSep 2, 196744°FSep 30, 1982
Oct60°FOct 1, 201124°FOct 31, 2002
Nov49°FNov 14, 19679°FNov 29, 2015
Dec45°FDec 10, 1929-3°FDec 22, 1990
All-time74°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.
Jan: 36°FJan: 21°FFeb: 41°FFeb: 24°FMar: 52°FMar: 30°FApr: 60°FApr: 35°FMay: 69°FMay: 43°FJun: 79°FJun: 50°FJul: 90°FJul: 57°FAug: 88°FAug: 55°FSep: 77°FSep: 47°FOct: 63°FOct: 37°FNov: 47°FNov: 28°FDec: 36°FDec: 21°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:02 AM
Sunset6:13 PM
Solar noon11:37 AM
Daylight13h 10m · losing 19 min/wk
Local standard time (no DST), level horizon.

Location

42.73°N, 114.45°W

Nearby Stations

Burley, ID37 mi EPocatello, ID96 mi EStanley, ID102 mi NBoise, ID107 mi NWChallis, ID124 mi NElko, NV148 mi SW

The Last 6 Weeks

Jerome's observed daily low for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
Jerome, ID — last six weeks of daily low

2026 So Far

Every day this year against Jerome's own record — the record low, the normal, and the full span ever seen. A shareable look at where the year stands.
Jerome, ID — 2026 daily low trace
Download year chart

Every Day Since 1915

Each cell is one day's low at Jerome, coloured by temperature — 112 years of record, so heat waves read as warm streaks and cold snaps as blue.
Jerome, ID daily low heat map 1915–2026

Days Below the Mark

How many days a year hit a given low at Jerome — counted through Sep 4 each year, so you can see whether 2026 is running cold. Pick a threshold:
60 days ≤32°F so far in 2026 — the 110th most in 112 years. Normal for this point: 91. Record: 121 in 1950.

Share Card

A ready-to-share summary of Jerome's outlook — post it, or link this page.
Jerome, ID cold share card
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