Monthly outlook for Porter Gap, TN: average high 75.7°, average low 56°. That is 3.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 15 October (91.6°), the coolest 27 October (44.5°).
75.7°/56°
Average high / low
+3.9°
Above normal
2 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
78.9°
69.8°
+5.1°
24 October – 2 November
70.3°
66.3°
+2.2°
3 November – 12 November
at normal
61.6°
—
October records over 66 years
92.5°2 October 2019All-time high
31.6°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Fowlkes (7 mi).
Thu, 1592° / 69°0
92 °
Porter Gap, Thursday, 15 October
Light rain. High 92°, low 69°.
Pressure30.03 inHg
Wind9 mph SW
Humidity38%
Visibility6.2 mi
Dew point60°
Fri, 1673° / 55°0
73 °
Porter Gap, Friday, 16 October
Partly cloudy. High 73°, low 55°.
Pressure30.18 inHg
Wind15.1 mph NW
Humidity48%
Visibility6.2 mi
Dew point44°
Sat, 1764° / 52°0
64 °
Porter Gap, Saturday, 17 October
Clear. High 64°, low 52°.
Pressure30.47 inHg
Wind12.4 mph N
Humidity47%
Visibility6.2 mi
Dew point40°
Sun, 1868° / 47°0
68 °
Porter Gap, Sunday, 18 October
Clear. High 68°, low 47°.
Pressure30.45 inHg
Wind6.2 mph NE
Humidity35%
Visibility6.2 mi
Dew point34°
Mon, 1971° / 47°0
71 °
Porter Gap, Monday, 19 October
Overcast. High 71°, low 47°.
Pressure30.36 inHg
Wind6.5 mph N
Humidity31%
Visibility—
Dew point34°
Tue, 2080° / 52°0
80 °
Porter Gap, Tuesday, 20 October
Partly cloudy. High 80°, low 52°.
Pressure30.24 inHg
Wind11.5 mph SE
Humidity41%
Visibility—
Dew point47°
Wed, 2183° / 59°0
83 °
Porter Gap, Wednesday, 21 October
Clear. High 83°, low 59°.
Pressure30.21 inHg
Wind8 mph SE
Humidity40%
Visibility—
Dew point51°
Thu, 2286° / 61°0
86 °
Porter Gap, Thursday, 22 October
Overcast. High 86°, low 61°.
Pressure30.15 inHg
Wind11 mph SW
Humidity33%
Visibility—
Dew point49°
Fri, 2388° / 67°0
88 °
Porter Gap, Friday, 23 October
Overcast. High 88°, low 67°.
Pressure30.09 inHg
Wind10.3 mph SW
Humidity32%
Visibility—
Dew point51°
Sat, 2489° / 65°0
89 °
Porter Gap, Saturday, 24 October
Clear. High 89°, low 65°.
Pressure30.09 inHg
Wind13.3 mph S
Humidity33%
Visibility—
Dew point52°
Sun, 2569° / 55°0.03
69 °
Porter Gap, Sunday, 25 October
Light rain. High 69°, low 55°.
Pressure30.33 inHg
Wind14.8 mph N
Humidity46%
Visibility—
Dew point40°
Mon, 2666° / 46°0
66 °
Porter Gap, Monday, 26 October
Overcast. High 66°, low 46°.
Pressure30.36 inHg
Wind12.1 mph NE
Humidity25%
Visibility—
Dew point25°
Tue, 2770° / 44°0
70 °
Porter Gap, Tuesday, 27 October
Overcast. High 70°, low 44°.
Pressure30.21 inHg
Wind11.8 mph E
Humidity17%
Visibility—
Dew point19°
Wed, 2860° / 52°0.23
60 °
Porter Gap, Wednesday, 28 October
Light rain. High 60°, low 52°.
Pressure30.12 inHg
Wind12.8 mph S
Humidity77%
Visibility—
Dew point50°
Thu, 2968° / 51°0.02
68 °
Porter Gap, Thursday, 29 October
Light rain. High 68°, low 51°.
Pressure30.12 inHg
Wind7.1 mph S
Humidity57%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3067° / 51°0.15
67 °
Porter Gap, Friday, 30 October
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.15 in
Chance of precipitation23%
Record high82° (2016)
Record low34° (1993)
Sat, 3167° / 52°0.16
67 °
Porter Gap, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high67°
Average low52°
Average precipitation0.16 in
Chance of precipitation35%
Record high84° (2016)
Record low32° (2023)
Sun, 0166° / 51°0.15
66 °
Porter Gap, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high66°
Average low51°
Average precipitation0.15 in
Chance of precipitation32%
Record high83° (2016)
Record low30° (2023)
Mon, 0264° / 50°0.1
64 °
Porter Gap, Monday, 2 November
Climate normal for this date — 60-year average.
Average high64°
Average low50°
Average precipitation0.1 in
Chance of precipitation32%
Record high80° (1961)
Record low31° (2023)
Tue, 0364° / 49°0.07
64 °
Porter Gap, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high64°
Average low49°
Average precipitation0.07 in
Chance of precipitation23%
Record high81° (2016)
Record low29° (1966)
Wed, 0463° / 49°0.15
63 °
Porter Gap, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high63°
Average low49°
Average precipitation0.15 in
Chance of precipitation23%
Record high78° (2003)
Record low25° (1991)
Thu, 0562° / 48°0.14
62 °
Porter Gap, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high62°
Average low48°
Average precipitation0.14 in
Chance of precipitation32%
Record high79° (2024)
Record low25° (1991)
Fri, 0662° / 47°0.18
62 °
Porter Gap, Friday, 6 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.18 in
Chance of precipitation32%
Record high77° (2023)
Record low30° (1967)
Sat, 0762° / 47°0.15
62 °
Porter Gap, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.15 in
Chance of precipitation30%
Record high78° (2023)
Record low27° (1993)
Sun, 0863° / 47°0.04
63 °
Porter Gap, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.04 in
Chance of precipitation12%
Record high79° (2005)
Record low27° (1991)
Mon, 0963° / 47°0.11
63 °
Porter Gap, Monday, 9 November
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.11 in
Chance of precipitation27%
Record high78° (2022)
Record low24° (1991)
Tue, 1061° / 46°0.11
61 °
Porter Gap, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.11 in
Chance of precipitation30%
Record high77° (2020)
Record low27° (2025)
Wed, 1160° / 44°0.1
60 °
Porter Gap, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.1 in
Chance of precipitation27%
Record high75° (2010)
Record low25° (2025)
Thu, 1258° / 43°0.08
58 °
Porter Gap, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.08 in
Chance of precipitation23%
Record high76° (1985)
Record low18° (2019)
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 Porter Gap, TN 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 Porter Gap, TN 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.