Monthly outlook for Chestnut Hill, TN: average high 69.4°, average low 49.4°. That is 2.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 30 October (78.6°), the coolest 2 November (37.7°).
69.4°/49.4°
Average high / low
+2.2°
Above normal
4 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
70.8°
66°
+2.6°
28 October – 6 November
67.2°
62.9°
+2.4°
7 November – 16 November
at normal
57.8°
—
October records over 66 years
93.9°3 October 2019All-time high
29.8°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Portland (7 mi).
Mon, 1968° / 45°0
68 °
Chestnut Hill, Monday, 19 October
Clear. High 68°, low 45°.
Pressure30.39 inHg
Wind4.9 mph NW
Humidity43%
Visibility6.2 mi
Dew point43°
Tue, 2071° / 46°0
71 °
Chestnut Hill, Tuesday, 20 October
Clear. High 71°, low 46°.
Pressure30.33 inHg
Wind6.2 mph NE
Humidity36%
Visibility6.2 mi
Dew point41°
Wed, 2171° / 46°0
71 °
Chestnut Hill, Wednesday, 21 October
Clear. High 71°, low 46°.
Pressure30.27 inHg
Wind6.5 mph NE
Humidity40%
Visibility6.2 mi
Dew point44°
Thu, 2270° / 47°0
70 °
Chestnut Hill, Thursday, 22 October
Clear. High 70°, low 47°.
Pressure30.24 inHg
Wind7.1 mph NE
Humidity51%
Visibility6.2 mi
Dew point48°
Fri, 2371° / 48°0
71 °
Chestnut Hill, Friday, 23 October
Clear. High 71°, low 48°.
Pressure30.24 inHg
Wind9.8 mph NE
Humidity30%
Visibility—
Dew point35°
Sat, 2473° / 52°0
73 °
Chestnut Hill, Saturday, 24 October
Partly cloudy. High 73°, low 52°.
Pressure30.39 inHg
Wind12.8 mph S
Humidity35%
Visibility—
Dew point41°
Sun, 2572° / 50°0
72 °
Chestnut Hill, Sunday, 25 October
Overcast. High 72°, low 50°.
Pressure30.42 inHg
Wind8.1 mph SW
Humidity32%
Visibility—
Dew point36°
Mon, 2672° / 52°0
72 °
Chestnut Hill, Monday, 26 October
Overcast. High 72°, low 52°.
Pressure30.30 inHg
Wind5.4 mph E
Humidity44%
Visibility—
Dew point46°
Tue, 2775° / 54°0
75 °
Chestnut Hill, Tuesday, 27 October
Overcast. High 75°, low 54°.
Pressure30.24 inHg
Wind5.9 mph SE
Humidity27%
Visibility—
Dew point35°
Wed, 2865° / 58°0.14
65 °
Chestnut Hill, Wednesday, 28 October
Light rain. High 65°, low 58°.
Pressure30.09 inHg
Wind11.9 mph S
Humidity85%
Visibility—
Dew point59°
Thu, 2969° / 63°0.33
69 °
Chestnut Hill, Thursday, 29 October
Rain. High 69°, low 63°.
Pressure29.91 inHg
Wind10.8 mph S
Humidity92%
Visibility—
Dew point64°
Fri, 3079° / 62°0.15
79 °
Chestnut Hill, Friday, 30 October
Light rain. High 79°, low 62°.
Pressure29.88 inHg
Wind10.8 mph S
Humidity62%
Visibility—
Dew point62°
Sat, 3170° / 50°0.51
70 °
Chestnut Hill, Saturday, 31 October
Light rain. High 70°, low 50°.
Pressure29.83 inHg
Wind14.4 mph SW
Humidity85%
Visibility—
Dew point65°
Sun, 0160° / 41°0
60 °
Chestnut Hill, Sunday, 1 November
Clear. High 60°, low 41°.
Pressure30.24 inHg
Wind8.1 mph NW
Humidity31%
Visibility—
Dew point26°
Mon, 0261° / 38°0
61 °
Chestnut Hill, Monday, 2 November
Clear. High 61°, low 38°.
Pressure30.36 inHg
Wind9.6 mph NE
Humidity32%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0362° / 46°0.08
62 °
Chestnut Hill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high62°
Average low46°
Average precipitation0.08 in
Chance of precipitation32%
Record high78° (2003)
Record low22° (1966)
Wed, 0461° / 45°0.1
61 °
Chestnut Hill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high61°
Average low45°
Average precipitation0.1 in
Chance of precipitation32%
Record high76° (1987)
Record low19° (1966)
Thu, 0560° / 46°0.16
60 °
Chestnut Hill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high60°
Average low46°
Average precipitation0.16 in
Chance of precipitation32%
Record high76° (1975)
Record low23° (1991)
Fri, 0660° / 45°0.15
60 °
Chestnut Hill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.15 in
Chance of precipitation37%
Record high75° (2022)
Record low29° (1967)
Sat, 0760° / 45°0.19
60 °
Chestnut Hill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.19 in
Chance of precipitation37%
Record high74° (2020)
Record low27° (1993)
Sun, 0860° / 45°0.07
60 °
Chestnut Hill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high60°
Average low45°
Average precipitation0.07 in
Chance of precipitation17%
Record high78° (2005)
Record low26° (1971)
Mon, 0961° / 44°0.16
61 °
Chestnut Hill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high61°
Average low44°
Average precipitation0.16 in
Chance of precipitation28%
Record high77° (2020)
Record low23° (2019)
Tue, 1059° / 44°0.13
59 °
Chestnut Hill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.13 in
Chance of precipitation33%
Record high76° (2020)
Record low25° (2018)
Wed, 1158° / 42°0.13
58 °
Chestnut Hill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.13 in
Chance of precipitation32%
Record high72° (2010)
Record low24° (2025)
Thu, 1256° / 41°0.07
56 °
Chestnut Hill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.07 in
Chance of precipitation28%
Record high72° (2010)
Record low17° (2019)
Fri, 1356° / 40°0.07
56 °
Chestnut Hill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.07 in
Chance of precipitation23%
Record high74° (1978)
Record low17° (2019)
Sat, 1457° / 40°0.11
57 °
Chestnut Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high57°
Average low40°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (2011)
Record low22° (1986)
Sun, 1556° / 41°0.16
56 °
Chestnut Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.16 in
Chance of precipitation35%
Record high75° (1964)
Record low23° (1969)
Mon, 1656° / 41°0.15
56 °
Chestnut Hill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.15 in
Chance of precipitation33%
Record high76° (1964)
Record low27° (2018)
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 Chestnut Hill, 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 Chestnut Hill, 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.