41.158°N, 104.808°W · station CYSthr · 155 years of record
74°F
HOTTEST OCT 17 SINCE 2024
forecast high · Oct 17
7-Day Forecast
NWS NDFD forecast high temperature for Cheyenne.
This Day in History
Every year's high on each of the next 7 forecast dates at Cheyenne — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.
Ranks
#13 / 153
warmest Oct 17 in 153 yrs of record
Warmest Oct 17 ever
79°F
set in 1926
Coolest Oct 17 ever
29°F
set in 1948
Forecast high 74°F — 13th warmest Oct 17 of 153 years · record 79°F (1926) · warmest since 2024.
Ranks
#25 / 153
warmest Oct 18 in 153 yrs of record
Warmest Oct 18 ever
80°F
set in 1958
Coolest Oct 18 ever
31°F
set in 1925
Forecast high 70°F — 25th warmest Oct 18 of 153 years · record 80°F (1958) · warmest since 2017.
Ranks
#44 / 153
warmest Oct 19 in 153 yrs of record
Warmest Oct 19 ever
81°F
set in 2003
Coolest Oct 19 ever
27°F
set in 1932
Forecast high 67°F — 44th warmest Oct 19 of 153 years · record 81°F (2003) · warmest since 2025.
Ranks
#13 / 153
warmest Oct 20 in 153 yrs of record
Warmest Oct 20 ever
78°F
set in 1950
Coolest Oct 20 ever
29°F
set in 1906
Forecast high 71°F — 13th warmest Oct 20 of 153 years · record 78°F (1950) · warmest since 2023.
Ranks
#11 / 153
warmest Oct 21 in 153 yrs of record
Warmest Oct 21 ever
78°F
set in 2003
Coolest Oct 21 ever
21°F
set in 1906
Forecast high 72°F — 11th warmest Oct 21 of 153 years · record 78°F (2003) · warmest since 2024.
Ranks
#12 / 154
warmest Oct 22 in 154 yrs of record
Warmest Oct 22 ever
81°F
set in 2003
Coolest Oct 22 ever
22°F
set in 1906
Forecast high 71°F — 12th warmest Oct 22 of 154 years · record 81°F (2003) · warmest since 2023.
Ranks
#27 / 154
warmest Oct 23 in 154 yrs of record
Warmest Oct 23 ever
79°F
set in 2003
Coolest Oct 23 ever
24°F
set in 2002
Forecast high 68°F — 27th warmest Oct 23 of 154 years · record 79°F (2003) · warmest since 2024.
The hottest and coldest ever recorded at Cheyenne in each calendar month, and for the whole 1872–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
70°FJan 27, 2015
-38°FJan 9, 1875
Feb
71°FFeb 11, 1962
-34°FFeb 8, 1936
Mar
83°FMar 21, 2026
-21°FMar 2, 1943
Apr
84°FApr 30, 2020
-8°FApr 1, 1975
May
91°FMay 29, 2000
8°FMay 3, 1907
Jun
100°FJun 23, 1954
25°FJun 2, 1951
Jul
100°FJul 14, 1881
33°FJul 4, 1915
Aug
98°FAug 1, 2008
25°FAug 25, 1910
Sep
97°FSep 7, 2022
8°FSep 30, 1985
Oct
85°FOct 9, 1910
-5°FOct 26, 1878
Nov
75°FNov 5, 1891
-21°FNov 13, 1916
Dec
70°FDec 2, 2021
-28°FDec 9, 1919
All-time
100°FJul 14, 1881
-38°FJan 9, 1875
2026 Records So Far
Records set or tied at Cheyenne so far this year — through Oct 15.
Record Highs in 2026
11 broke
plus 2 tied — daily record highs set this year
Monthly high records this year: Mar (83°F), Aug (98°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
68°F
record high minimum — the night it never cooled · Jul 31, 1960
Coldest high ever
-21°F
record low maximum — the day it never warmed · Jan 11, 1963
Month
Warmest low
Coldest high
Jan
46°FJan 19, 1920
-21°FJan 11, 1963
Feb
50°FFeb 4, 1890
-18°FFeb 3, 1989
Mar
51°FMar 16, 1908
-5°FMar 12, 1880
Apr
54°FApr 14, 2002
9°FApr 7, 1875
May
60°FMay 28, 1934
26°FMay 1, 1954
Jun
67°FJun 21, 2025
37°FJun 1, 1951
Jul
68°FJul 31, 1960
47°FJul 10, 1895
Aug
67°FAug 24, 2020
49°FAug 28, 1892
Sep
65°FSep 5, 2019
29°FSep 24, 1926
Oct
56°FOct 16, 1991
11°FOct 30, 1991
Nov
53°FNov 15, 2021
-4°FNov 27, 1919
Dec
47°FDec 12, 1921
-18°FDec 20, 1990
All-time
68°FJul 31, 1960
-21°FJan 11, 1963
Hot Streaks
Current run
0 days
consecutive days with a high ≥ 90°F
Longest ever
10 days
record run, ended Jul 21 2003
So far in 2026
20 days
days with a high ≥ 90°F this year
Climate Normals
Normal high & low by month, from Cheyenne's own 1991–2020 record. Today's normal high: 60°F · forecast is +14° vs normal.
Cheyenne'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 Cheyenne's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.