Monthly outlook for Sam Rayburn, TX: average high 80.9°, average low 63.5°. That is 3.7° above the climate normal for October. Precipitation is expected on 4 days (about 3.4 inches), against a normal of 4 days and 2.4 inches. The warmest day looks like 2 November (88.4°), the coolest 22 October (50.7°).
80.9°/63.5°
Average high / low
+3.7°
Above normal
4 / 4
Wet days / normal
3.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
82.2°
75.6°
+3.6°
31 October – 9 November
78.8°
71.8°
+3.9°
10 November – 19 November
at normal
68.6°
—
October records over 66 years
95.4°1 October 2023All-time high
35.8°31 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Jasper (11 mi).
Thu, 2284° / 51°0
84 °
Sam Rayburn, Thursday, 22 October
Clear. High 84°, low 51°.
Pressure30.18 inHg
Wind3.1 mph NE
Humidity37%
Visibility6.2 mi
Dew point49°
Fri, 2382° / 64°0
82 °
Sam Rayburn, Friday, 23 October
Clear. High 82°, low 64°.
Pressure30.18 inHg
Wind1.6 mph NE
Humidity39%
Visibility6.2 mi
Dew point51°
Sat, 2482° / 64°0
82 °
Sam Rayburn, Saturday, 24 October
Clear. High 82°, low 64°.
Pressure30.21 inHg
Wind6.9 mph SE
Humidity44%
Visibility6.2 mi
Dew point55°
Sun, 2578° / 63°0
78 °
Sam Rayburn, Sunday, 25 October
Overcast. High 78°, low 63°.
Pressure30.27 inHg
Wind6.4 mph E
Humidity33%
Visibility—
Dew point43°
Mon, 2680° / 65°0
80 °
Sam Rayburn, Monday, 26 October
Overcast. High 80°, low 65°.
Pressure30.21 inHg
Wind7.1 mph E
Humidity46%
Visibility—
Dew point53°
Tue, 2783° / 61°0
83 °
Sam Rayburn, Tuesday, 27 October
Overcast. High 83°, low 61°.
Pressure30.18 inHg
Wind4.5 mph N
Humidity40%
Visibility—
Dew point51°
Wed, 2887° / 62°0
87 °
Sam Rayburn, Wednesday, 28 October
Overcast. High 87°, low 62°.
Pressure30.15 inHg
Wind3.4 mph NE
Humidity33%
Visibility—
Dew point51°
Thu, 2982° / 64°0
82 °
Sam Rayburn, Thursday, 29 October
Overcast. High 82°, low 64°.
Pressure30.18 inHg
Wind4.9 mph NE
Humidity46%
Visibility—
Dew point55°
Fri, 3082° / 63°0
82 °
Sam Rayburn, Friday, 30 October
Overcast. High 82°, low 63°.
Pressure30.09 inHg
Wind6.3 mph E
Humidity37%
Visibility—
Dew point50°
Sat, 3172° / 62°0.57
72 °
Sam Rayburn, Saturday, 31 October
Rain. High 72°, low 62°.
Pressure29.94 inHg
Wind8.4 mph SE
Humidity61%
Visibility—
Dew point56°
Sun, 0170° / 65°0.37
70 °
Sam Rayburn, Sunday, 1 November
Rain. High 70°, low 65°.
Pressure29.97 inHg
Wind7.2 mph S
Humidity98%
Visibility—
Dew point67°
Mon, 0288° / 67°0
88 °
Sam Rayburn, Monday, 2 November
Partly cloudy. High 88°, low 67°.
Pressure29.97 inHg
Wind4.3 mph S
Humidity53%
Visibility—
Dew point65°
Tue, 0383° / 70°0.03
83 °
Sam Rayburn, Tuesday, 3 November
Light rain. High 83°, low 70°.
Pressure29.80 inHg
Wind10.7 mph S
Humidity64%
Visibility—
Dew point68°
Wed, 0480° / 73°0.6
80 °
Sam Rayburn, Wednesday, 4 November
Rain. High 80°, low 73°.
Pressure29.74 inHg
Wind12.4 mph S
Humidity83%
Visibility—
Dew point74°
Thu, 0580° / 71°1.79
80 °
Sam Rayburn, Thursday, 5 November
Rain. High 80°, low 71°.
Pressure29.94 inHg
Wind7.4 mph S
Humidity89%
Visibility—
Dew point74°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0672° / 56°0.07
72 °
Sam Rayburn, Friday, 6 November
Climate normal for this date — 60-year average.
Average high72°
Average low56°
Average precipitation0.07 in
Chance of precipitation25%
Record high85° (2017)
Record low42° (1967)
Sat, 0771° / 55°0.16
71 °
Sam Rayburn, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.16 in
Chance of precipitation25%
Record high85° (2024)
Record low37° (1993)
Sun, 0871° / 55°0.08
71 °
Sam Rayburn, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.08 in
Chance of precipitation23%
Record high85° (2023)
Record low41° (1991)
Mon, 0971° / 56°0.14
71 °
Sam Rayburn, Monday, 9 November
Climate normal for this date — 60-year average.
Average high71°
Average low56°
Average precipitation0.14 in
Chance of precipitation30%
Record high83° (2022)
Record low33° (1991)
Tue, 1071° / 55°0.09
71 °
Sam Rayburn, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high71°
Average low55°
Average precipitation0.09 in
Chance of precipitation22%
Record high82° (2020)
Record low36° (1991)
Wed, 1170° / 55°0.06
70 °
Sam Rayburn, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high70°
Average low55°
Average precipitation0.06 in
Chance of precipitation22%
Record high81° (1999)
Record low36° (2025)
Thu, 1269° / 53°0.11
69 °
Sam Rayburn, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.11 in
Chance of precipitation18%
Record high81° (2003)
Record low34° (2019)
Fri, 1367° / 52°0.12
67 °
Sam Rayburn, Friday, 13 November
Climate normal for this date — 60-year average.
Average high67°
Average low52°
Average precipitation0.12 in
Chance of precipitation15%
Record high82° (2005)
Record low25° (2019)
Sat, 1468° / 53°0.06
68 °
Sam Rayburn, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high68°
Average low53°
Average precipitation0.06 in
Chance of precipitation18%
Record high83° (2007)
Record low33° (2018)
Sun, 1569° / 53°0.09
69 °
Sam Rayburn, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high69°
Average low53°
Average precipitation0.09 in
Chance of precipitation30%
Record high81° (2005)
Record low31° (2018)
Mon, 1668° / 52°0.19
68 °
Sam Rayburn, Monday, 16 November
Climate normal for this date — 60-year average.
Average high68°
Average low52°
Average precipitation0.19 in
Chance of precipitation28%
Record high83° (2025)
Record low35° (1970)
Tue, 1768° / 53°0.13
68 °
Sam Rayburn, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high68°
Average low53°
Average precipitation0.13 in
Chance of precipitation28%
Record high82° (2013)
Record low35° (1997)
Wed, 1868° / 54°0.21
68 °
Sam Rayburn, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high68°
Average low54°
Average precipitation0.21 in
Chance of precipitation33%
Record high83° (2025)
Record low35° (2014)
Thu, 1968° / 53°0.09
68 °
Sam Rayburn, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high68°
Average low53°
Average precipitation0.09 in
Chance of precipitation25%
Record high84° (2025)
Record low36° (2014)
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 Sam Rayburn, 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 Sam Rayburn, 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.