29.378°N, 100.927°W · station DRTthr · 122 years of record
102°F
HOTTEST SEP 3 SINCE 2023
forecast high · Sep 3
7-Day Forecast
NWS NDFD forecast high temperature for Del Rio.
This Day in History
Every year's high 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 hottest on record.
Ranks
#19 / 120
warmest Sep 1 in 120 yrs of record
Warmest Sep 1 ever
105°F
set in 1951
Coolest Sep 1 ever
82°F
set in 1932
Forecast high 100°F — 19th warmest Sep 1 of 120 years · record 105°F (1951) · warmest since 2023.
Ranks
#8 / 120
warmest Sep 2 in 120 yrs of record
Warmest Sep 2 ever
106°F
set in 1952
Coolest Sep 2 ever
76°F
set in 1968
Forecast high 101°F — 8th warmest Sep 2 of 120 years · record 106°F (1952) · warmest since 2023.
Ranks
#9 / 120
warmest Sep 3 in 120 yrs of record
Warmest Sep 3 ever
105°F
set in 2000
Coolest Sep 3 ever
74°F
set in 1974
Forecast high 102°F — 9th warmest Sep 3 of 120 years · record 105°F (2000) · warmest since 2023.
Ranks
#17 / 120
warmest Sep 4 in 120 yrs of record
Warmest Sep 4 ever
106°F
set in 2000
Coolest Sep 4 ever
78°F
set in 1974
Forecast high 99°F — 17th warmest Sep 4 of 120 years · record 106°F (2000) · warmest since 2025.
Ranks
#14 / 120
warmest Sep 5 in 120 yrs of record
Warmest Sep 5 ever
107°F
set in 2000
Coolest Sep 5 ever
77°F
set in 1978
Forecast high 99°F — 14th warmest Sep 5 of 120 years · record 107°F (2000) · warmest since 2025.
Ranks
#16 / 120
warmest Sep 6 in 120 yrs of record
Warmest Sep 6 ever
109°F
set in 2000
Coolest Sep 6 ever
73°F
set in 1918
Forecast high 98°F — 16th warmest Sep 6 of 120 years · record 109°F (2000) · warmest since 2023.
Ranks
#12 / 120
warmest Sep 7 in 120 yrs of record
Warmest Sep 7 ever
110°F
set in 2000
Coolest Sep 7 ever
76°F
set in 1966
Forecast high 99°F — 12th warmest Sep 7 of 120 years · record 110°F (2000) · warmest since 2023.
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
Hot Streaks
Current run
43 days
consecutive days with a high ≥ 90°F
Longest ever
128 days
record run, ended Oct 4 2023
So far in 2026
121 days
days with a high ≥ 90°F this year
Climate Normals
Normal high & low by month, from Del Rio's own 1991–2020 record. Today's normal high: 95°F · forecast is +7° vs normal.
Del Rio'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 Del Rio's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.