Monthly outlook for Porter Gap, TN: average high 78.1°, average low 57°. That is 4.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 4 days and 2.0 inches. The warmest day looks like 13 October (90.9°), the coolest 18 October (36.4°).
78.1°/57°
Average high / low
+4.5°
Above normal
1 / 4
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
79.5°
70.9°
+4.8°
21 October – 30 October
75.6°
67.5°
+4.5°
31 October – 9 November
at normal
63.5°
—
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).
Mon, 1288° / 64°0
88 °
Porter Gap, Monday, 12 October
Clear. High 88°, low 64°.
Pressure30.06 inHg
Wind9.2 mph SW
Humidity44%
Visibility6.2 mi
Dew point61°
Tue, 1391° / 68°0
91 °
Porter Gap, Tuesday, 13 October
Clear. High 91°, low 68°.
Pressure30.00 inHg
Wind9.2 mph SW
Humidity50%
Visibility6.2 mi
Dew point66°
Wed, 1487° / 74°0.11
87 °
Porter Gap, Wednesday, 14 October
Light rain. High 87°, low 74°.
Pressure30.03 inHg
Wind8.2 mph SW
Humidity66%
Visibility6.2 mi
Dew point72°
Thu, 1590° / 72°0
90 °
Porter Gap, Thursday, 15 October
Clear. High 90°, low 72°.
Pressure30.03 inHg
Wind8.8 mph SW
Humidity45%
Visibility6.2 mi
Dew point64°
Fri, 1673° / 61°0
73 °
Porter Gap, Friday, 16 October
Overcast. High 73°, low 61°.
Pressure30.27 inHg
Wind18 mph N
Humidity59%
Visibility—
Dew point54°
Sat, 1760° / 44°0
60 °
Porter Gap, Saturday, 17 October
Clear. High 60°, low 44°.
Pressure30.53 inHg
Wind16.6 mph NE
Humidity28%
Visibility—
Dew point25°
Sun, 1870° / 36°0
70 °
Porter Gap, Sunday, 18 October
Clear. High 70°, low 36°.
Pressure30.50 inHg
Wind10.7 mph SE
Humidity17%
Visibility—
Dew point16°
Mon, 1975° / 43°0
75 °
Porter Gap, Monday, 19 October
Clear. High 75°, low 43°.
Pressure30.45 inHg
Wind10.1 mph S
Humidity26%
Visibility—
Dew point31°
Tue, 2078° / 52°0
78 °
Porter Gap, Tuesday, 20 October
Overcast. High 78°, low 52°.
Pressure30.30 inHg
Wind12.1 mph SE
Humidity38%
Visibility—
Dew point46°
Wed, 2183° / 58°0
83 °
Porter Gap, Wednesday, 21 October
Mostly clear. High 83°, low 58°.
Pressure30.21 inHg
Wind13.2 mph S
Humidity34%
Visibility—
Dew point47°
Thu, 2283° / 62°0
83 °
Porter Gap, Thursday, 22 October
Overcast. High 83°, low 62°.
Pressure30.24 inHg
Wind13.6 mph S
Humidity37%
Visibility—
Dew point52°
Fri, 2383° / 61°0
83 °
Porter Gap, Friday, 23 October
Overcast. High 83°, low 61°.
Pressure30.18 inHg
Wind13.4 mph S
Humidity34%
Visibility—
Dew point48°
Sat, 2484° / 60°0
84 °
Porter Gap, Saturday, 24 October
Partly cloudy. High 84°, low 60°.
Pressure30.03 inHg
Wind17.1 mph N
Humidity33%
Visibility—
Dew point48°
Sun, 2565° / 53°0
65 °
Porter Gap, Sunday, 25 October
Overcast. High 65°, low 53°.
Pressure30.09 inHg
Wind13.4 mph N
Humidity45%
Visibility—
Dew point41°
Mon, 2655° / 47°0
55 °
Porter Gap, Monday, 26 October
Overcast. High 55°, low 47°.
Pressure30.09 inHg
Wind11.1 mph N
Humidity69%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2767° / 51°0.19
67 °
Porter Gap, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high67°
Average low51°
Average precipitation0.19 in
Chance of precipitation28%
Record high83° (1963)
Record low39° (2001)
Wed, 2866° / 50°0.12
66 °
Porter Gap, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high66°
Average low50°
Average precipitation0.12 in
Chance of precipitation33%
Record high81° (1971)
Record low35° (1976)
Thu, 2966° / 50°0.13
66 °
Porter Gap, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high66°
Average low50°
Average precipitation0.13 in
Chance of precipitation27%
Record high82° (2016)
Record low34° (2017)
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)
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.