Monthly outlook for Keister, TN: average high 72.6°, average low 49.7°. That is 2.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.9 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 15 October (82.4°), the coolest 18 October (28.9°).
72.6°/49.7°
Average high / low
+2.4°
Above normal
1 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
72°
69.3°
+1.5°
21 October – 30 October
73.7°
66.1°
+4.2°
31 October – 9 November
at normal
62.8°
—
October records over 66 years
96.6°3 October 2019All-time high
28.6°29 October 1976All-time low
Climate normals and records are computed from the nearest reference point — New Market (5 mi).
Mon, 1278° / 60°0
78 °
Keister, Monday, 12 October
Partly cloudy. High 78°, low 60°.
Pressure30.15 inHg
Wind4.6 mph W
Humidity71%
Visibility6.2 mi
Dew point61°
Tue, 1380° / 60°0
80 °
Keister, Tuesday, 13 October
Clear. High 80°, low 60°.
Pressure30.09 inHg
Wind6.3 mph SW
Humidity73%
Visibility6.2 mi
Dew point66°
Wed, 1482° / 61°0
82 °
Keister, Wednesday, 14 October
Clear. High 82°, low 61°.
Pressure30.09 inHg
Wind3 mph SW
Humidity70%
Visibility6.2 mi
Dew point66°
Thu, 1582° / 65°0
82 °
Keister, Thursday, 15 October
Clear. High 82°, low 65°.
Pressure30.12 inHg
Wind2.1 mph S
Humidity76%
Visibility6.2 mi
Dew point69°
Fri, 1681° / 57°0.01
81 °
Keister, Friday, 16 October
Light rain. High 81°, low 57°.
Pressure30.03 inHg
Wind16.6 mph N
Humidity51%
Visibility—
Dew point60°
Sat, 1754° / 35°0
54 °
Keister, Saturday, 17 October
Clear. High 54°, low 35°.
Pressure30.45 inHg
Wind12.5 mph N
Humidity27%
Visibility—
Dew point19°
Sun, 1860° / 29°0
60 °
Keister, Sunday, 18 October
Clear. High 60°, low 29°.
Pressure30.56 inHg
Wind9.2 mph E
Humidity21%
Visibility—
Dew point15°
Mon, 1966° / 35°0
66 °
Keister, Monday, 19 October
Clear. High 66°, low 35°.
Pressure30.53 inHg
Wind4.7 mph E
Humidity27%
Visibility—
Dew point26°
Tue, 2070° / 40°0
70 °
Keister, Tuesday, 20 October
Partly cloudy. High 70°, low 40°.
Pressure30.39 inHg
Wind4.6 mph NE
Humidity30%
Visibility—
Dew point32°
Wed, 2172° / 43°0
72 °
Keister, Wednesday, 21 October
Overcast. High 72°, low 43°.
Pressure30.33 inHg
Wind6.1 mph E
Humidity31%
Visibility—
Dew point35°
Thu, 2272° / 44°0
72 °
Keister, Thursday, 22 October
Clear. High 72°, low 44°.
Pressure30.39 inHg
Wind6.2 mph NE
Humidity36%
Visibility—
Dew point39°
Fri, 2373° / 45°0
73 °
Keister, Friday, 23 October
Clear. High 73°, low 45°.
Pressure30.27 inHg
Wind5.2 mph NE
Humidity43%
Visibility—
Dew point46°
Sat, 2476° / 50°0
76 °
Keister, Saturday, 24 October
Partly cloudy. High 76°, low 50°.
Pressure30.06 inHg
Wind5 mph NE
Humidity47%
Visibility—
Dew point50°
Sun, 2576° / 54°0
76 °
Keister, Sunday, 25 October
Overcast. High 76°, low 54°.
Pressure29.94 inHg
Wind10.2 mph N
Humidity47%
Visibility—
Dew point51°
Mon, 2672° / 53°0
72 °
Keister, Monday, 26 October
Mostly clear. High 72°, low 53°.
Pressure29.85 inHg
Wind13.9 mph NW
Humidity55%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2765° / 48°0.15
65 °
Keister, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.15 in
Chance of precipitation35%
Record high80° (1963)
Record low31° (1962)
Wed, 2865° / 48°0.12
65 °
Keister, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high65°
Average low48°
Average precipitation0.12 in
Chance of precipitation33%
Record high81° (1991)
Record low32° (1976)
Thu, 2965° / 47°0.1
65 °
Keister, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high65°
Average low47°
Average precipitation0.1 in
Chance of precipitation22%
Record high80° (2016)
Record low29° (1976)
Fri, 3066° / 46°0.09
66 °
Keister, Friday, 30 October
Climate normal for this date — 60-year average.
Average high66°
Average low46°
Average precipitation0.09 in
Chance of precipitation23%
Record high80° (2016)
Record low31° (2017)
Sat, 3166° / 47°0.06
66 °
Keister, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high66°
Average low47°
Average precipitation0.06 in
Chance of precipitation23%
Record high80° (2016)
Record low34° (1993)
Sun, 0166° / 48°0.07
66 °
Keister, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high66°
Average low48°
Average precipitation0.07 in
Chance of precipitation30%
Record high83° (2016)
Record low30° (2023)
Mon, 0265° / 46°0.14
65 °
Keister, Monday, 2 November
Climate normal for this date — 60-year average.
Average high65°
Average low46°
Average precipitation0.14 in
Chance of precipitation28%
Record high80° (1961)
Record low31° (2023)
Tue, 0363° / 45°0.07
63 °
Keister, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high63°
Average low45°
Average precipitation0.07 in
Chance of precipitation23%
Record high79° (2003)
Record low31° (1966)
Wed, 0462° / 44°0.13
62 °
Keister, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high62°
Average low44°
Average precipitation0.13 in
Chance of precipitation30%
Record high77° (2003)
Record low26° (1966)
Thu, 0561° / 44°0.11
61 °
Keister, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.11 in
Chance of precipitation28%
Record high78° (2024)
Record low27° (1991)
Fri, 0661° / 44°0.08
61 °
Keister, Friday, 6 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.08 in
Chance of precipitation38%
Record high79° (2024)
Record low27° (1967)
Sat, 0761° / 44°0.15
61 °
Keister, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.15 in
Chance of precipitation35%
Record high80° (2024)
Record low28° (1967)
Sun, 0861° / 43°0.09
61 °
Keister, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high61°
Average low43°
Average precipitation0.09 in
Chance of precipitation25%
Record high80° (2023)
Record low28° (1993)
Mon, 0962° / 43°0.11
62 °
Keister, Monday, 9 November
Climate normal for this date — 60-year average.
Average high62°
Average low43°
Average precipitation0.11 in
Chance of precipitation28%
Record high78° (2020)
Record low29° (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 Keister, 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 Keister, 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.