Monthly outlook for Erin, TN: average high 73°, average low 56.3°. That is 3° above the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 13 October (89.3°), the coolest 18 October (43.8°).
73°/56.3°
Average high / low
+3°
Above normal
6 / 4
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
76.3°
68.9°
+4.1°
23 October – 1 November
67.7°
65.8°
+1.1°
2 November – 11 November
at normal
61.3°
—
October records over 66 years
95.2°2 October 2019All-time high
29.7°31 October 2023All-time low
Climate normals and records are computed from the nearest reference point — Slayden (13 mi).
Wed, 1480° / 65°0.44
80 °
Erin, Wednesday, 14 October
Heavy rain. High 80°, low 65°.
Pressure30.06 inHg
Wind5.4 mph SW
Humidity86%
Visibility6.2 mi
Dew point70°
Thu, 1589° / 70°0.01
89 °
Erin, Thursday, 15 October
Light rain. High 89°, low 70°.
Pressure30.06 inHg
Wind7.2 mph SW
Humidity47%
Visibility6.2 mi
Dew point64°
Fri, 1673° / 54°0.01
73 °
Erin, Friday, 16 October
Light rain. High 73°, low 54°.
Pressure30.18 inHg
Wind14.5 mph NW
Humidity52%
Visibility6.2 mi
Dew point46°
Sat, 1762° / 49°0
62 °
Erin, Saturday, 17 October
Clear. High 62°, low 49°.
Pressure30.47 inHg
Wind9.9 mph N
Humidity35%
Visibility—
Dew point32°
Sun, 1871° / 44°0
71 °
Erin, Sunday, 18 October
Clear. High 71°, low 44°.
Pressure30.36 inHg
Wind8.7 mph S
Humidity36%
Visibility—
Dew point38°
Mon, 1969° / 55°0.04
69 °
Erin, Monday, 19 October
Light rain. High 69°, low 55°.
Pressure30.30 inHg
Wind8.8 mph S
Humidity82%
Visibility—
Dew point53°
Tue, 2070° / 59°0.1
70 °
Erin, Tuesday, 20 October
Light rain. High 70°, low 59°.
Pressure30.27 inHg
Wind7 mph S
Humidity68%
Visibility—
Dew point57°
Wed, 2180° / 60°0
80 °
Erin, Wednesday, 21 October
Overcast. High 80°, low 60°.
Pressure30.21 inHg
Wind8.3 mph SE
Humidity50%
Visibility—
Dew point55°
Thu, 2279° / 61°0
79 °
Erin, Thursday, 22 October
Clear. High 79°, low 61°.
Pressure30.12 inHg
Wind11.4 mph S
Humidity36%
Visibility—
Dew point48°
Fri, 2379° / 63°0
79 °
Erin, Friday, 23 October
Overcast. High 79°, low 63°.
Pressure30.15 inHg
Wind12.1 mph SW
Humidity48%
Visibility—
Dew point56°
Sat, 2467° / 59°0.05
67 °
Erin, Saturday, 24 October
Light rain. High 67°, low 59°.
Pressure30.21 inHg
Wind5.7 mph N
Humidity90%
Visibility—
Dew point62°
Sun, 2565° / 59°0.43
65 °
Erin, Sunday, 25 October
Rain. High 65°, low 59°.
Pressure30.06 inHg
Wind6.4 mph NE
Humidity85%
Visibility—
Dew point59°
Mon, 2663° / 51°0.06
63 °
Erin, Monday, 26 October
Light rain. High 63°, low 51°.
Pressure30.21 inHg
Wind11.7 mph NE
Humidity54%
Visibility—
Dew point43°
Tue, 2764° / 46°0
64 °
Erin, Tuesday, 27 October
Overcast. High 64°, low 46°.
Pressure30.21 inHg
Wind8 mph NE
Humidity40%
Visibility—
Dew point36°
Wed, 2868° / 45°0
68 °
Erin, Wednesday, 28 October
Overcast. High 68°, low 45°.
Pressure30.06 inHg
Wind5.6 mph NW
Humidity34%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2965° / 49°0.09
65 °
Erin, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high65°
Average low49°
Average precipitation0.09 in
Chance of precipitation25%
Record high82° (2016)
Record low31° (1976)
Fri, 3066° / 49°0.11
66 °
Erin, Friday, 30 October
Climate normal for this date — 60-year average.
Average high66°
Average low49°
Average precipitation0.11 in
Chance of precipitation27%
Record high82° (2016)
Record low33° (1993)
Sat, 3167° / 50°0.13
67 °
Erin, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high67°
Average low50°
Average precipitation0.13 in
Chance of precipitation33%
Record high83° (2016)
Record low30° (2023)
Sun, 0165° / 50°0.15
65 °
Erin, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high65°
Average low50°
Average precipitation0.15 in
Chance of precipitation32%
Record high84° (2016)
Record low28° (2023)
Mon, 0264° / 48°0.1
64 °
Erin, Monday, 2 November
Climate normal for this date — 60-year average.
Average high64°
Average low48°
Average precipitation0.1 in
Chance of precipitation30%
Record high82° (2016)
Record low31° (2023)
Tue, 0363° / 47°0.07
63 °
Erin, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high63°
Average low47°
Average precipitation0.07 in
Chance of precipitation28%
Record high79° (2003)
Record low27° (1966)
Wed, 0462° / 47°0.11
62 °
Erin, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high62°
Average low47°
Average precipitation0.11 in
Chance of precipitation27%
Record high77° (1987)
Record low25° (1991)
Thu, 0561° / 46°0.14
61 °
Erin, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.14 in
Chance of precipitation35%
Record high77° (2005)
Record low23° (1991)
Fri, 0661° / 45°0.13
61 °
Erin, Friday, 6 November
Climate normal for this date — 60-year average.
Average high61°
Average low45°
Average precipitation0.13 in
Chance of precipitation32%
Record high77° (2024)
Record low29° (1967)
Sat, 0761° / 46°0.17
61 °
Erin, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high61°
Average low46°
Average precipitation0.17 in
Chance of precipitation33%
Record high77° (2023)
Record low28° (1993)
Sun, 0861° / 45°0.06
61 °
Erin, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high61°
Average low45°
Average precipitation0.06 in
Chance of precipitation10%
Record high81° (2023)
Record low26° (1971)
Mon, 0962° / 45°0.15
62 °
Erin, Monday, 9 November
Climate normal for this date — 60-year average.
Average high62°
Average low45°
Average precipitation0.15 in
Chance of precipitation27%
Record high77° (2022)
Record low23° (2019)
Tue, 1060° / 44°0.12
60 °
Erin, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high60°
Average low44°
Average precipitation0.12 in
Chance of precipitation32%
Record high76° (2002)
Record low26° (2018)
Wed, 1159° / 42°0.1
59 °
Erin, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high59°
Average low42°
Average precipitation0.1 in
Chance of precipitation27%
Record high74° (2010)
Record low24° (2025)
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 Erin, 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 Erin, 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.