Monthly outlook for Mercedes, TX: average high 86.9°, average low 70.8°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.3 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 3 November (93°), the coolest 4 November (66.3°).
86.9°/70.8°
Average high / low
+3.4°
Above normal
4 / 3
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
87.5°
81.6°
+3.3°
8 November – 17 November
85.8°
78.8°
+3.9°
18 November – 27 November
at normal
77.1°
—
October records over 66 years
100.2°18 October 2012All-time high
39.6°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Progreso Lakes (6 mi).
Fri, 3087° / 71°0
87 °
Mercedes, Friday, 30 October
Overcast. High 87°, low 71°.
Pressure30.00 inHg
Wind9.6 mph SE
Humidity44%
Visibility6.2 mi
Dew point63°
Sat, 3191° / 72°0.04
91 °
Mercedes, Saturday, 31 October
Light rain. High 91°, low 72°.
Pressure30.03 inHg
Wind5 mph SE
Humidity56%
Visibility6.2 mi
Dew point70°
Sun, 0190° / 74°0.06
90 °
Mercedes, Sunday, 1 November
Light rain. High 90°, low 74°.
Pressure30.09 inHg
Wind3.1 mph E
Humidity58%
Visibility6.2 mi
Dew point71°
Mon, 0291° / 74°0
91 °
Mercedes, Monday, 2 November
Overcast. High 91°, low 74°.
Pressure29.94 inHg
Wind11.1 mph SE
Humidity51%
Visibility—
Dew point67°
Tue, 0393° / 76°0
93 °
Mercedes, Tuesday, 3 November
Light rain. High 93°, low 76°.
Pressure29.74 inHg
Wind15.4 mph S
Humidity45%
Visibility—
Dew point66°
Wed, 0485° / 66°0
85 °
Mercedes, Wednesday, 4 November
Clear. High 85°, low 66°.
Pressure29.97 inHg
Wind8.5 mph N
Humidity26%
Visibility—
Dew point42°
Thu, 0585° / 66°0
85 °
Mercedes, Thursday, 5 November
Clear. High 85°, low 66°.
Pressure30.09 inHg
Wind14.6 mph E
Humidity34%
Visibility—
Dew point49°
Fri, 0685° / 67°0
85 °
Mercedes, Friday, 6 November
Clear. High 85°, low 67°.
Pressure29.97 inHg
Wind14.5 mph SE
Humidity36%
Visibility—
Dew point52°
Sat, 0784° / 70°0
84 °
Mercedes, Saturday, 7 November
Partly cloudy. High 84°, low 70°.
Pressure29.88 inHg
Wind20.4 mph SE
Humidity45%
Visibility—
Dew point59°
Sun, 0886° / 72°0
86 °
Mercedes, Sunday, 8 November
Mostly clear. High 86°, low 72°.
Pressure29.97 inHg
Wind13.8 mph SE
Humidity47%
Visibility—
Dew point62°
Mon, 0986° / 70°0
86 °
Mercedes, Monday, 9 November
Light rain. High 86°, low 70°.
Pressure30.09 inHg
Wind12.7 mph E
Humidity35%
Visibility—
Dew point52°
Tue, 1085° / 70°0
85 °
Mercedes, Tuesday, 10 November
Mostly clear. High 85°, low 70°.
Pressure30.09 inHg
Wind12.6 mph E
Humidity46%
Visibility—
Dew point60°
Wed, 1185° / 73°0.06
85 °
Mercedes, Wednesday, 11 November
Light rain. High 85°, low 73°.
Pressure30.06 inHg
Wind11.9 mph SE
Humidity57%
Visibility—
Dew point64°
Thu, 1286° / 71°0.06
86 °
Mercedes, Thursday, 12 November
Light rain. High 86°, low 71°.
Pressure30.06 inHg
Wind13.8 mph E
Humidity46%
Visibility—
Dew point59°
Fri, 1386° / 67°0
86 °
Mercedes, Friday, 13 November
Clear. High 86°, low 67°.
Pressure30.06 inHg
Wind13.6 mph SE
Humidity38%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1478° / 62°0.03
78 °
Mercedes, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.03 in
Chance of precipitation15%
Record high91° (2020)
Record low38° (2018)
Sun, 1578° / 62°0.03
78 °
Mercedes, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.03 in
Chance of precipitation12%
Record high91° (1989)
Record low37° (2018)
Mon, 1678° / 62°0.06
78 °
Mercedes, Monday, 16 November
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.06 in
Chance of precipitation18%
Record high91° (2011)
Record low38° (1970)
Tue, 1778° / 62°0.04
78 °
Mercedes, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.04 in
Chance of precipitation23%
Record high90° (2024)
Record low43° (2014)
Wed, 1879° / 63°0.03
79 °
Mercedes, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high79°
Average low63°
Average precipitation0.03 in
Chance of precipitation17%
Record high94° (2024)
Record low45° (2014)
Thu, 1978° / 63°0.05
78 °
Mercedes, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high78°
Average low63°
Average precipitation0.05 in
Chance of precipitation20%
Record high94° (1983)
Record low44° (1980)
Fri, 2077° / 61°0.04
77 °
Mercedes, Friday, 20 November
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.04 in
Chance of precipitation20%
Record high91° (1994)
Record low41° (1969)
Sat, 2177° / 60°0.04
77 °
Mercedes, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.04 in
Chance of precipitation17%
Record high91° (1996)
Record low40° (1969)
Sun, 2277° / 61°0.06
77 °
Mercedes, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.06 in
Chance of precipitation22%
Record high90° (1983)
Record low46° (1972)
Mon, 2377° / 61°0.04
77 °
Mercedes, Monday, 23 November
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.04 in
Chance of precipitation20%
Record high89° (2025)
Record low42° (1975)
Tue, 2476° / 60°0.05
76 °
Mercedes, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.05 in
Chance of precipitation22%
Record high91° (2025)
Record low40° (1970)
Wed, 2577° / 60°0.06
77 °
Mercedes, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.06 in
Chance of precipitation20%
Record high93° (1965)
Record low43° (1975)
Thu, 2677° / 61°0.04
77 °
Mercedes, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high77°
Average low61°
Average precipitation0.04 in
Chance of precipitation25%
Record high94° (1965)
Record low40° (1974)
Fri, 2776° / 60°0.05
76 °
Mercedes, Friday, 27 November
Climate normal for this date — 60-year average.
Average high76°
Average low60°
Average precipitation0.05 in
Chance of precipitation22%
Record high93° (1994)
Record low38° (1980)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Mercedes, TX are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Mercedes, TX since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.