Monthly outlook for Keys Mill, TN: average high 64.1°, average low 44.8°. That is 1° below the climate normal for October. Precipitation is expected on 3 days (about 4.7 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 16 October (83.1°), the coolest 19 October (26°).
64.1°/44.8°
Average high / low
−1°
Below normal
3 / 5
Wet days / normal
4.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
67.7°
66.9°
+0.4°
20 October – 29 October
58°
63.4°
-3°
30 October – 8 November
at normal
60.6°
—
October records over 66 years
91.4°3 October 2019All-time high
22.5°27 October 1982All-time low
Climate normals and records are computed from the nearest reference point — Johnson City (8 mi).
Sun, 1166° / 58°1.16
66 °
Keys Mill, Sunday, 11 October
Heavy rain. High 66°, low 58°.
Pressure29.91 inHg
Wind11.3 mph W
Humidity92%
Visibility5.1 mi
Dew point64°
Mon, 1275° / 57°0
75 °
Keys Mill, Monday, 12 October
Partly cloudy. High 75°, low 57°.
Pressure30.09 inHg
Wind9.2 mph W
Humidity69%
Visibility6.2 mi
Dew point59°
Tue, 1378° / 60°0
78 °
Keys Mill, Tuesday, 13 October
Clear. High 78°, low 60°.
Pressure30.09 inHg
Wind8.6 mph SW
Humidity68%
Visibility6.2 mi
Dew point63°
Wed, 1478° / 61°0
78 °
Keys Mill, Wednesday, 14 October
Clear. High 78°, low 61°.
Pressure30.12 inHg
Wind4.5 mph SW
Humidity69%
Visibility6.2 mi
Dew point63°
Thu, 1581° / 63°0.03
81 °
Keys Mill, Thursday, 15 October
Light rain. High 81°, low 63°.
Pressure30.12 inHg
Wind2.9 mph N
Humidity62%
Visibility—
Dew point64°
Fri, 1683° / 61°0.01
83 °
Keys Mill, Friday, 16 October
Light rain. High 83°, low 61°.
Pressure29.97 inHg
Wind16.1 mph W
Humidity44%
Visibility—
Dew point56°
Sat, 1756° / 33°0.03
56 °
Keys Mill, Saturday, 17 October
Light rain. High 56°, low 33°.
Pressure30.06 inHg
Wind16.7 mph NW
Humidity48%
Visibility—
Dew point32°
Sun, 1845° / 28°0.01
45 °
Keys Mill, Sunday, 18 October
Light snow. High 45°, low 28°.
Pressure30.39 inHg
Wind10.3 mph NW
Humidity53%
Visibility—
Dew point25°
Mon, 1953° / 26°0
53 °
Keys Mill, Monday, 19 October
Clear. High 53°, low 26°.
Pressure30.56 inHg
Wind8.3 mph NE
Humidity31%
Visibility—
Dew point18°
Tue, 2058° / 30°0
58 °
Keys Mill, Tuesday, 20 October
Clear. High 58°, low 30°.
Pressure30.45 inHg
Wind3.7 mph NW
Humidity29%
Visibility—
Dew point22°
Wed, 2163° / 33°0
63 °
Keys Mill, Wednesday, 21 October
Clear. High 63°, low 33°.
Pressure30.36 inHg
Wind4.3 mph N
Humidity28%
Visibility—
Dew point25°
Thu, 2265° / 36°0
65 °
Keys Mill, Thursday, 22 October
Clear. High 65°, low 36°.
Pressure30.39 inHg
Wind4.4 mph SE
Humidity26%
Visibility—
Dew point26°
Fri, 2364° / 39°0
64 °
Keys Mill, Friday, 23 October
Overcast. High 64°, low 39°.
Pressure30.18 inHg
Wind8.4 mph SE
Humidity37%
Visibility—
Dew point34°
Sat, 2449° / 38°2.48
49 °
Keys Mill, Saturday, 24 October
Heavy rain. High 49°, low 38°.
Pressure30.06 inHg
Wind12.7 mph E
Humidity97%
Visibility—
Dew point44°
Sun, 2549° / 38°0.02
49 °
Keys Mill, Sunday, 25 October
Light rain. High 49°, low 38°.
Pressure29.91 inHg
Wind3.7 mph SW
Humidity83%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2663° / 46°0.09
63 °
Keys Mill, Monday, 26 October
Climate normal for this date — 60-year average.
Average high63°
Average low46°
Average precipitation0.09 in
Chance of precipitation30%
Record high78° (2010)
Record low26° (1982)
Tue, 2762° / 45°0.15
62 °
Keys Mill, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.15 in
Chance of precipitation40%
Record high77° (1984)
Record low22° (1982)
Wed, 2862° / 46°0.13
62 °
Keys Mill, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.13 in
Chance of precipitation40%
Record high78° (1991)
Record low26° (1976)
Thu, 2962° / 44°0.12
62 °
Keys Mill, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.12 in
Chance of precipitation30%
Record high78° (2023)
Record low29° (1976)
Fri, 3063° / 43°0.13
63 °
Keys Mill, Friday, 30 October
Climate normal for this date — 60-year average.
Average high63°
Average low43°
Average precipitation0.13 in
Chance of precipitation28%
Record high77° (2024)
Record low28° (2017)
Sat, 3164° / 45°0.08
64 °
Keys Mill, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high64°
Average low45°
Average precipitation0.08 in
Chance of precipitation30%
Record high78° (2024)
Record low32° (1993)
Sun, 0163° / 45°0.09
63 °
Keys Mill, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high63°
Average low45°
Average precipitation0.09 in
Chance of precipitation35%
Record high78° (2016)
Record low28° (2023)
Mon, 0262° / 44°0.15
62 °
Keys Mill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.15 in
Chance of precipitation35%
Record high78° (2004)
Record low24° (2023)
Tue, 0361° / 43°0.08
61 °
Keys Mill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high61°
Average low43°
Average precipitation0.08 in
Chance of precipitation27%
Record high77° (2003)
Record low24° (2014)
Wed, 0459° / 42°0.14
59 °
Keys Mill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.14 in
Chance of precipitation37%
Record high77° (2003)
Record low25° (1966)
Thu, 0559° / 41°0.13
59 °
Keys Mill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.13 in
Chance of precipitation32%
Record high75° (2022)
Record low25° (1991)
Fri, 0659° / 41°0.06
59 °
Keys Mill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.06 in
Chance of precipitation33%
Record high79° (2024)
Record low25° (1967)
Sat, 0759° / 41°0.14
59 °
Keys Mill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high59°
Average low41°
Average precipitation0.14 in
Chance of precipitation32%
Record high77° (2024)
Record low26° (1967)
Sun, 0858° / 40°0.1
58 °
Keys Mill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.1 in
Chance of precipitation28%
Record high78° (2023)
Record low25° (1971)
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 Keys Mill, 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 Keys Mill, 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.