29.378°N, 100.927°W · station DRTthr · 122 years of record
76°F
COLDEST SEP 7 SINCE 2025
forecast low · Sep 7
7-Day Forecast
NWS NDFD forecast low temperature for Del Rio.
This Day in History
Every year's low on each of the next 7 forecast dates at Del Rio — toggle a day below. The forecast line shows where it lands; the ringed bar is the coldest on record.
Ranks
#107 / 120
coldest Sep 2 in 120 yrs of record
Coldest Sep 2 ever
63°F
set in 1967
Mildest Sep 2 ever
85°F
set in 2020
Forecast low 78°F — 107th coldest Sep 2 of 120 years · record 63°F (1967) · coldest since 2025.
Ranks
#117 / 120
coldest Sep 3 in 120 yrs of record
Coldest Sep 3 ever
58°F
set in 1974
Mildest Sep 3 ever
84°F
set in 2011
Forecast low 79°F — 117th coldest Sep 3 of 120 years · record 58°F (1974) · coldest since 2025.
Ranks
#114 / 120
coldest Sep 4 in 120 yrs of record
Coldest Sep 4 ever
63°F
set in 1934
Mildest Sep 4 ever
81°F
set in 2021
Forecast low 78°F — 114th coldest Sep 4 of 120 years · record 63°F (1934) · coldest since 2025.
Ranks
#107 / 120
coldest Sep 5 in 120 yrs of record
Coldest Sep 5 ever
57°F
set in 1974
Mildest Sep 5 ever
82°F
set in 2023
Forecast low 77°F — 107th coldest Sep 5 of 120 years · record 57°F (1974) · coldest since 2024.
Ranks
#108 / 120
coldest Sep 6 in 120 yrs of record
Coldest Sep 6 ever
57°F
set in 2011
Mildest Sep 6 ever
80°F
set in 2023
Forecast low 77°F — 108th coldest Sep 6 of 120 years · record 57°F (2011) · coldest since 2025.
Ranks
#95 / 120
coldest Sep 7 in 120 yrs of record
Coldest Sep 7 ever
57°F
set in 2011
Mildest Sep 7 ever
80°F
set in 2000
Forecast low 76°F — 95th coldest Sep 7 of 120 years · record 57°F (2011) · coldest since 2025.
Ranks
#99 / 120
coldest Sep 8 in 120 yrs of record
Coldest Sep 8 ever
59°F
set in 1918
Mildest Sep 8 ever
79°F
set in 1929
Forecast low 76°F — 99th coldest Sep 8 of 120 years · record 59°F (1918) · coldest since 2025.
The hottest and coldest ever recorded at Del Rio in each calendar month, and for the whole 1905–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
92°FJan 31, 1911
12°FJan 11, 1918
Feb
99°FFeb 21, 1996
11°FFeb 2, 1951
Mar
103°FMar 28, 1928
19°FMar 1, 1922
Apr
107°FApr 10, 2019
33°FApr 7, 1939
May
112°FMay 26, 2024
45°FMay 3, 1970
Jun
115°FJun 21, 2023
49°FJun 3, 1919
Jul
112°FJul 13, 2020
63°FJul 4, 1906
Aug
113°FAug 22, 2024
60°FAug 31, 1915
Sep
110°FSep 6, 2000
43°FSep 29, 1908
Oct
106°FOct 3, 1979
28°FOct 31, 1993
Nov
96°FNov 4, 1988
17°FNov 21, 1906
Dec
91°FDec 14, 2019
10°FDec 23, 1989
All-time
115°FJun 21, 2023
10°FDec 23, 1989
2026 Records So Far
Records set or tied at Del Rio so far this year — through Aug 30.
Record Highs in 2026
2 broke
plus 3 tied — daily record highs set this year
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
87°F
record high minimum — the night it never cooled · Jul 13, 1998
Coldest high ever
23°F
record low maximum — the day it never warmed · Dec 22, 1989
Month
Warmest low
Coldest high
Jan
68°FJan 3, 2005
26°FJan 10, 1962
Feb
69°FFeb 20, 2018
26°FFeb 1, 1985
Mar
74°FMar 30, 2025
32°FMar 1, 1922
Apr
78°FApr 2, 2025
47°FApr 9, 1928
May
82°FMay 25, 2024
60°FMay 3, 1918
Jun
85°FJun 17, 2023
69°FJun 11, 1930
Jul
87°FJul 13, 1998
73°FJul 8, 1976
Aug
84°FAug 28, 2020
70°FAug 1, 1925
Sep
85°FSep 1, 2020
55°FSep 29, 1945
Oct
79°FOct 1, 2019
43°FOct 27, 2020
Nov
74°FNov 1, 2024
38°FNov 20, 1906
Dec
68°FDec 9, 2022
23°FDec 22, 1989
All-time
87°FJul 13, 1998
23°FDec 22, 1989
Cold Streaks
Current run
0 days
consecutive days with a low ≤ 32°F
Longest ever
15 days
record run, ended Dec 31 1983
So far in 2026
8 days
days with a low ≤ 32°F this year
Climate Normals
Normal low & low by month, from Del Rio's own 1991–2020 record. Today's normal low: 73°F · forecast is +3° vs normal.