Monthly outlook for O'Brien, TX: average high 83.3°, average low 64.6°. That is 3.1° above the climate normal for October. Precipitation is expected on 2 days (about 2.5 inches), against a normal of 3 days and 1.2 inches. The warmest day looks like 11 October (96.4°), the coolest 17 October (55.4°).
83.3°/64.6°
Average high / low
+3.1°
Above normal
2 / 3
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
90.8°
78.8°
+6.6°
17 October – 26 October
70.7°
75.2°
-2.5°
27 October – 5 November
at normal
70.4°
—
October records over 66 years
102.7°8 October 1979All-time high
22.6°31 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Rule (14 mi).
Thu, 0889° / 60°0
89 °
O'Brien, Thursday, 8 October
Partly cloudy. High 89°, low 60°.
Pressure30.03 inHg
Wind2.7 mph SE
Humidity31%
Visibility6.2 mi
Dew point52°
Fri, 0989° / 63°0
89 °
O'Brien, Friday, 9 October
Clear. High 89°, low 63°.
Pressure30.03 inHg
Wind5.8 mph S
Humidity40%
Visibility6.2 mi
Dew point57°
Sat, 1090° / 65°0
90 °
O'Brien, Saturday, 10 October
Clear. High 90°, low 65°.
Pressure29.94 inHg
Wind5.2 mph SW
Humidity34%
Visibility6.2 mi
Dew point53°
Sun, 1196° / 71°0
96 °
O'Brien, Sunday, 11 October
Clear. High 96°, low 71°.
Pressure29.85 inHg
Wind13.6 mph SW
Humidity26%
Visibility6.2 mi
Dew point49°
Mon, 1296° / 74°0
96 °
O'Brien, Monday, 12 October
Clear. High 96°, low 74°.
Pressure29.88 inHg
Wind13.1 mph S
Humidity39%
Visibility—
Dew point60°
Tue, 1394° / 73°0
94 °
O'Brien, Tuesday, 13 October
Clear. High 94°, low 73°.
Pressure29.94 inHg
Wind13.8 mph SE
Humidity41%
Visibility—
Dew point61°
Wed, 1494° / 75°0.01
94 °
O'Brien, Wednesday, 14 October
Light rain. High 94°, low 75°.
Pressure29.80 inHg
Wind29.1 mph S
Humidity44%
Visibility—
Dew point62°
Thu, 1594° / 74°0
94 °
O'Brien, Thursday, 15 October
Clear. High 94°, low 74°.
Pressure29.77 inHg
Wind24.6 mph S
Humidity27%
Visibility—
Dew point51°
Fri, 1677° / 61°0
77 °
O'Brien, Friday, 16 October
Light rain. High 77°, low 61°.
Pressure30.12 inHg
Wind22 mph N
Humidity23%
Visibility—
Dew point30°
Sat, 1770° / 55°0
70 °
O'Brien, Saturday, 17 October
Overcast. High 70°, low 55°.
Pressure30.15 inHg
Wind12.8 mph NE
Humidity25%
Visibility—
Dew point29°
Sun, 1862° / 57°0
62 °
O'Brien, Sunday, 18 October
Overcast. High 62°, low 57°.
Pressure30.21 inHg
Wind11.9 mph NE
Humidity35%
Visibility—
Dew point34°
Mon, 1976° / 56°0
76 °
O'Brien, Monday, 19 October
Overcast. High 76°, low 56°.
Pressure30.18 inHg
Wind9.7 mph SE
Humidity38%
Visibility—
Dew point42°
Tue, 2080° / 60°0
80 °
O'Brien, Tuesday, 20 October
Partly cloudy. High 80°, low 60°.
Pressure30.12 inHg
Wind12.1 mph S
Humidity42%
Visibility—
Dew point53°
Wed, 2169° / 65°0.2
69 °
O'Brien, Wednesday, 21 October
Light rain. High 69°, low 65°.
Pressure30.09 inHg
Wind14.3 mph SE
Humidity92%
Visibility—
Dew point65°
Thu, 2266° / 65°2.32
66 °
O'Brien, Thursday, 22 October
Heavy rain. High 66°, low 65°.
Pressure29.91 inHg
Wind16.6 mph SE
Humidity97%
Visibility—
Dew point65°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2375° / 55°0.06
75 °
O'Brien, Friday, 23 October
Climate normal for this date — 60-year average.
Average high75°
Average low55°
Average precipitation0.06 in
Chance of precipitation18%
Record high92° (2024)
Record low40° (1981)
Sat, 2474° / 54°0.12
74 °
O'Brien, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high74°
Average low54°
Average precipitation0.12 in
Chance of precipitation23%
Record high92° (2003)
Record low36° (2005)
Sun, 2574° / 54°0.09
74 °
O'Brien, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high74°
Average low54°
Average precipitation0.09 in
Chance of precipitation15%
Record high90° (2011)
Record low38° (2019)
Mon, 2673° / 54°0.06
73 °
O'Brien, Monday, 26 October
Climate normal for this date — 60-year average.
Average high73°
Average low54°
Average precipitation0.06 in
Chance of precipitation13%
Record high92° (2021)
Record low29° (2020)
Tue, 2772° / 53°0.11
72 °
O'Brien, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.11 in
Chance of precipitation25%
Record high93° (2014)
Record low28° (2020)
Wed, 2871° / 52°0.1
71 °
O'Brien, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.1 in
Chance of precipitation20%
Record high88° (2024)
Record low33° (2020)
Thu, 2973° / 52°0.05
73 °
O'Brien, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high73°
Average low52°
Average precipitation0.05 in
Chance of precipitation12%
Record high87° (2003)
Record low34° (1980)
Fri, 3072° / 53°0.09
72 °
O'Brien, Friday, 30 October
Climate normal for this date — 60-year average.
Average high72°
Average low53°
Average precipitation0.09 in
Chance of precipitation18%
Record high92° (2024)
Record low30° (1993)
Sat, 3170° / 51°0.11
70 °
O'Brien, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high70°
Average low51°
Average precipitation0.11 in
Chance of precipitation25%
Record high87° (2010)
Record low23° (2019)
Sun, 0170° / 50°0.06
70 °
O'Brien, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high70°
Average low50°
Average precipitation0.06 in
Chance of precipitation17%
Record high90° (2016)
Record low31° (1991)
Mon, 0269° / 49°0.1
69 °
O'Brien, Monday, 2 November
Climate normal for this date — 60-year average.
Average high69°
Average low49°
Average precipitation0.1 in
Chance of precipitation18%
Record high87° (2017)
Record low25° (1991)
Tue, 0368° / 49°0.1
68 °
O'Brien, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high68°
Average low49°
Average precipitation0.1 in
Chance of precipitation17%
Record high86° (2003)
Record low23° (1991)
Wed, 0470° / 50°0.08
70 °
O'Brien, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high70°
Average low50°
Average precipitation0.08 in
Chance of precipitation15%
Record high87° (2017)
Record low28° (1991)
Thu, 0570° / 49°0.04
70 °
O'Brien, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high70°
Average low49°
Average precipitation0.04 in
Chance of precipitation13%
Record high87° (2017)
Record low33° (1970)
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 O'Brien, 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 O'Brien, 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.