Monthly outlook for Mertens, TX: average high 74.4°, average low 56.2°. That is 3° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 12 November (90.3°), the coolest 15 November (38°).
74.4°/56.2°
Average high / low
+3°
Above normal
1 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
31 October – 9 November
75.8°
70.1°
+3.1°
10 November – 19 November
72.1°
67°
+2.8°
20 November – 29 November
at normal
63.8°
—
October records over 66 years
99.7°13 October 2024All-time high
30.7°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Italy (9 mi).
Sun, 0182° / 63°0
82 °
Mertens, Sunday, 1 November
Overcast. High 82°, low 63°.
Pressure30.12 inHg
Wind3.6 mph SE
Humidity60%
Visibility6.2 mi
Dew point64°
Mon, 0283° / 67°0
83 °
Mertens, Monday, 2 November
Light rain. High 83°, low 67°.
Pressure29.94 inHg
Wind16.8 mph S
Humidity60%
Visibility6.2 mi
Dew point65°
Tue, 0374° / 64°0.48
74 °
Mertens, Tuesday, 3 November
Heavy rain. High 74°, low 64°.
Pressure29.94 inHg
Wind11.8 mph NW
Humidity47%
Visibility6.2 mi
Dew point50°
Wed, 0474° / 56°0
74 °
Mertens, Wednesday, 4 November
Overcast. High 74°, low 56°.
Pressure29.97 inHg
Wind4.1 mph NW
Humidity49%
Visibility6.2 mi
Dew point50°
Thu, 0577° / 56°0
77 °
Mertens, Thursday, 5 November
Partly cloudy. High 77°, low 56°.
Pressure29.85 inHg
Wind11.7 mph S
Humidity50%
Visibility—
Dew point52°
Fri, 0672° / 55°0
72 °
Mertens, Friday, 6 November
Overcast. High 72°, low 55°.
Pressure29.94 inHg
Wind14.2 mph N
Humidity49%
Visibility—
Dew point47°
Sat, 0778° / 56°0
78 °
Mertens, Saturday, 7 November
Clear. High 78°, low 56°.
Pressure29.88 inHg
Wind17.5 mph N
Humidity39%
Visibility—
Dew point45°
Sun, 0867° / 53°0
67 °
Mertens, Sunday, 8 November
Clear. High 67°, low 53°.
Pressure30.12 inHg
Wind18.5 mph NW
Humidity31%
Visibility—
Dew point31°
Mon, 0975° / 51°0
75 °
Mertens, Monday, 9 November
Clear. High 75°, low 51°.
Pressure30.09 inHg
Wind9.4 mph S
Humidity23%
Visibility—
Dew point29°
Tue, 1076° / 55°0
76 °
Mertens, Tuesday, 10 November
Overcast. High 76°, low 55°.
Pressure30.06 inHg
Wind16.6 mph S
Humidity33%
Visibility—
Dew point40°
Wed, 1185° / 62°0
85 °
Mertens, Wednesday, 11 November
Overcast. High 85°, low 62°.
Pressure29.83 inHg
Wind16.2 mph S
Humidity57%
Visibility—
Dew point59°
Thu, 1290° / 66°0.02
90 °
Mertens, Thursday, 12 November
Light rain. High 90°, low 66°.
Pressure29.56 inHg
Wind24.9 mph SW
Humidity55%
Visibility—
Dew point62°
Fri, 1376° / 50°0
76 °
Mertens, Friday, 13 November
Overcast. High 76°, low 50°.
Pressure29.65 inHg
Wind24 mph NW
Humidity21%
Visibility—
Dew point32°
Sat, 1451° / 43°0
51 °
Mertens, Saturday, 14 November
Overcast. High 51°, low 43°.
Pressure30.09 inHg
Wind22.6 mph N
Humidity47%
Visibility—
Dew point30°
Sun, 1554° / 38°0
54 °
Mertens, Sunday, 15 November
Mostly clear. High 54°, low 38°.
Pressure30.21 inHg
Wind14.5 mph NW
Humidity36%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 1666° / 49°0.1
66 °
Mertens, Monday, 16 November
Climate normal for this date — 60-year average.
Average high66°
Average low49°
Average precipitation0.1 in
Chance of precipitation25%
Record high86° (2025)
Record low31° (1997)
Tue, 1767° / 50°0.13
67 °
Mertens, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.13 in
Chance of precipitation23%
Record high86° (2025)
Record low28° (2014)
Wed, 1867° / 50°0.08
67 °
Mertens, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.08 in
Chance of precipitation22%
Record high86° (2025)
Record low29° (2014)
Thu, 1967° / 51°0.13
67 °
Mertens, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.13 in
Chance of precipitation22%
Record high84° (2025)
Record low34° (1980)
Fri, 2066° / 50°0.08
66 °
Mertens, Friday, 20 November
Climate normal for this date — 60-year average.
Average high66°
Average low50°
Average precipitation0.08 in
Chance of precipitation15%
Record high80° (2007)
Record low31° (2022)
Sat, 2166° / 49°0.1
66 °
Mertens, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high66°
Average low49°
Average precipitation0.1 in
Chance of precipitation23%
Record high79° (1999)
Record low33° (1993)
Sun, 2265° / 48°0.13
65 °
Mertens, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.13 in
Chance of precipitation28%
Record high80° (1999)
Record low30° (1964)
Mon, 2366° / 49°0.11
66 °
Mertens, Monday, 23 November
Climate normal for this date — 60-year average.
Average high66°
Average low49°
Average precipitation0.11 in
Chance of precipitation27%
Record high81° (2005)
Record low29° (1975)
Tue, 2464° / 48°0.22
64 °
Mertens, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.22 in
Chance of precipitation32%
Record high83° (1965)
Record low28° (1970)
Wed, 2564° / 47°0.11
64 °
Mertens, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high64°
Average low47°
Average precipitation0.11 in
Chance of precipitation35%
Record high81° (1965)
Record low30° (1993)
Thu, 2664° / 49°0.15
64 °
Mertens, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.15 in
Chance of precipitation37%
Record high83° (1965)
Record low26° (1993)
Fri, 2762° / 46°0.11
62 °
Mertens, Friday, 27 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.11 in
Chance of precipitation20%
Record high85° (2024)
Record low25° (1993)
Sat, 2860° / 44°0.07
60 °
Mertens, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.07 in
Chance of precipitation17%
Record high79° (2006)
Record low29° (1992)
Sun, 2962° / 45°0.1
62 °
Mertens, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.1 in
Chance of precipitation27%
Record high78° (2022)
Record low24° (1976)
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 Mertens, 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 Mertens, 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.