40.204°N, 100.590°W · station MCKthr · 131 years of record
67°F
COLDEST SEP 2 SINCE 2025
forecast low · Sep 2
7-Day Forecast
NWS NDFD forecast low temperature for McCook.
This Day in History
Every year's low on each of the next 7 forecast dates at McCook — toggle a day below. The forecast line shows where it lands; the ringed bar is the coldest on record.
Ranks
#78 / 89
coldest Sep 2 in 89 yrs of record
Coldest Sep 2 ever
39°F
set in 1956
Mildest Sep 2 ever
71°F
set in 1953
Forecast low 67°F — 78th coldest Sep 2 of 89 years · record 39°F (1956) · coldest since 2025.
Ranks
#86 / 91
coldest Sep 3 in 91 yrs of record
Coldest Sep 3 ever
41°F
set in 1918
Mildest Sep 3 ever
75°F
set in 1964
Forecast low 69°F — 86th coldest Sep 3 of 91 years · record 41°F (1918) · coldest since 2025.
Ranks
#92 / 92
coldest Sep 4 in 92 yrs of record
Coldest Sep 4 ever
42°F
set in 2008
Mildest Sep 4 ever
74°F
set in 1922
Forecast low 70°F — 92nd coldest Sep 4 of 92 years · record 42°F (2008) · coldest since 2025.
Ranks
#92 / 92
coldest Sep 5 in 92 yrs of record
Coldest Sep 5 ever
36°F
set in 1962
Mildest Sep 5 ever
74°F
set in 2015
Forecast low 71°F — 92nd coldest Sep 5 of 92 years · record 36°F (1962) · coldest since 2025.
Ranks
#91 / 92
coldest Sep 6 in 92 yrs of record
Coldest Sep 6 ever
36°F
set in 2017
Mildest Sep 6 ever
71°F
set in 1931
Forecast low 69°F — 91st coldest Sep 6 of 92 years · record 36°F (2017) · coldest since 2025.
Ranks
#83 / 91
coldest Sep 7 in 91 yrs of record
Coldest Sep 7 ever
34°F
set in 1956
Mildest Sep 7 ever
72°F
set in 2002
Forecast low 67°F — 83rd coldest Sep 7 of 91 years · record 34°F (1956) · coldest since 2025.
Ranks
#85 / 92
coldest Sep 8 in 92 yrs of record
Coldest Sep 8 ever
40°F
set in 1929
Mildest Sep 8 ever
73°F
set in 1919
Forecast low 67°F — 85th coldest Sep 8 of 92 years · record 40°F (1929) · coldest since 2025.
The hottest and coldest ever recorded at McCook in each calendar month, and for the whole 1896–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
78°FJan 10, 1911
-30°FJan 12, 1912
Feb
83°FFeb 19, 1930
-26°FFeb 8, 1933
Mar
98°FMar 21, 2026
-20°FMar 3, 1960
Apr
98°FApr 28, 1910
0°FApr 2, 1936
May
106°FMay 31, 2002
14°FMay 1, 1909
Jun
115°FJun 26, 2012
34°FJun 1, 1947
Jul
114°FJul 20, 1932
43°FJul 4, 1915
Aug
111°FAug 3, 1930
39°FAug 28, 1911
Sep
107°FSep 1, 1929
22°FSep 30, 1912
Oct
98°FOct 9, 1928
-1°FOct 29, 1913
Nov
89°FNov 19, 2007
-14°FNov 14, 1940
Dec
81°FDec 23, 1964
-27°FDec 22, 1989
All-time
115°FJun 26, 2012
-30°FJan 12, 1912
2026 Records So Far
Records set or tied at McCook so far this year — through Aug 30.
Record Highs in 2026
6 broke
plus 4 tied — daily record highs set this year
Monthly high record this year: Mar (98°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
88°F
record high minimum — the night it never cooled · Aug 1, 1935
Coldest high ever
-4°F
record low maximum — the day it never warmed · Dec 22, 1989
Month
Warmest low
Coldest high
Jan
42°FJan 9, 2002
-2°FJan 12, 1916
Feb
47°FFeb 19, 2017
-4°FFeb 15, 2021
Mar
61°FMar 30, 1967
8°FMar 2, 2014
Apr
63°FApr 25, 1896
22°FApr 1, 1936
May
72°FMay 28, 2006
40°FMay 1, 1954
Jun
84°FJun 28, 1911
47°FJun 4, 1998
Jul
82°FJul 31, 1934
58°FJul 2, 1995
Aug
88°FAug 1, 1935
58°FAug 24, 1934
Sep
75°FSep 2, 1964
41°FSep 24, 2000
Oct
71°FOct 6, 2007
21°FOct 31, 1991
Nov
55°FNov 8, 2020
5°FNov 27, 1919
Dec
48°FDec 13, 2014
-4°FDec 22, 1989
All-time
88°FAug 1, 1935
-4°FDec 22, 1989
Cold Streaks
Current run
0 days
consecutive days with a low ≤ 32°F
Longest ever
141 days
record run, ended Mar 17 1931
So far in 2026
78 days
days with a low ≤ 32°F this year
Climate Normals
Normal low & low by month, from McCook's own 1991–2020 record. Today's normal low: 59°F · forecast is +8° vs normal.