As of 18:42 EDT

Weather in Decatur, TN

63°Current weather

Decatur, Monday, 26 October, 18:42

Overcast. Feels like 62°. High 71°, low 45°.

Pressure30.27 inHg
Wind3 mph N
Humidity63%
Visibility6.2 mi
Dew point50°

Monthly outlook for Decatur, TN: average high 65.6°, average low 48°. That is 0.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 30 October (75.1°), the coolest 7 November (38.6°).

65.6°/48°
Average high / low
+0.7°
Above normal
4 / 5
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
26 October – 4 November69.6°65.7°+2.1°
5 November – 14 November58.9°60.8°-1.1°
15 November – 24 Novemberat normal57.9°—

October records over 66 years

95.7°3 October 2019All-time high
33.4°30 October 2017All-time low

Climate normals and records are computed from the nearest reference point — Spring City (12 mi).

Tue, 2774° / 46°0Clear
74 °Clear

Decatur, Tuesday, 27 October

Clear. High 74°, low 46°.

Pressure30.30 inHg
Wind1.9 mph NE
Humidity55%
Visibility1.8 mi
Dew point49°
Wed, 2871° / 49°0Overcast
71 °Overcast

Decatur, Wednesday, 28 October

Overcast. High 71°, low 49°.

Pressure30.33 inHg
Wind1.6 mph SE
Humidity54%
Visibility6.2 mi
Dew point47°
Thu, 2973° / 52°0Clear
73 °Clear

Decatur, Thursday, 29 October

Clear. High 73°, low 52°.

Pressure30.30 inHg
Wind1.8 mph SE
Humidity55%
Visibility6.2 mi
Dew point51°
Fri, 3075° / 52°0Clear
75 °Clear

Decatur, Friday, 30 October

Clear. High 75°, low 52°.

Pressure30.24 inHg
Wind4.1 mph NE
Humidity45%
Visibility6.2 mi
Dew point46°
Sat, 3173° / 57°0.03Light rain
73 °Light rain

Decatur, Saturday, 31 October

Light rain. High 73°, low 57°.

Pressure30.21 inHg
Wind4.6 mph E
Humidity47%
Visibility—
Dew point48°
Sun, 0165° / 60°0.5Rain
65 °Rain

Decatur, Sunday, 1 November

Rain. High 65°, low 60°.

Pressure30.03 inHg
Wind5.7 mph S
Humidity98%
Visibility—
Dew point62°
Mon, 0272° / 58°0.02Light rain
72 °Light rain

Decatur, Monday, 2 November

Light rain. High 72°, low 58°.

Pressure29.85 inHg
Wind3.3 mph W
Humidity63%
Visibility—
Dew point57°
Tue, 0368° / 53°0.5Rain
68 °Rain

Decatur, Tuesday, 3 November

Rain. High 68°, low 53°.

Pressure29.68 inHg
Wind12.8 mph SW
Humidity93%
Visibility—
Dew point62°
Wed, 0454° / 43°0.06Light rain
54 °Light rain

Decatur, Wednesday, 4 November

Light rain. High 54°, low 43°.

Pressure29.77 inHg
Wind10.3 mph SW
Humidity67%
Visibility—
Dew point43°
Thu, 0552° / 39°0Partly cloudy
52 °Partly cloudy

Decatur, Thursday, 5 November

Partly cloudy. High 52°, low 39°.

Pressure29.97 inHg
Wind7.7 mph NW
Humidity65%
Visibility—
Dew point39°
Fri, 0653° / 46°0Overcast
53 °Overcast

Decatur, Friday, 6 November

Overcast. High 53°, low 46°.

Pressure30.09 inHg
Wind8.6 mph N
Humidity64%
Visibility—
Dew point40°
Sat, 0760° / 39°0Clear
60 °Clear

Decatur, Saturday, 7 November

Clear. High 60°, low 39°.

Pressure30.18 inHg
Wind5 mph NE
Humidity50%
Visibility—
Dew point38°
Sun, 0864° / 40°0Partly cloudy
64 °Partly cloudy

Decatur, Sunday, 8 November

Partly cloudy. High 64°, low 40°.

Pressure30.21 inHg
Wind6.7 mph S
Humidity48%
Visibility—
Dew point39°
Mon, 0962° / 41°0.02Light rain
62 °Light rain

Decatur, Monday, 9 November

Light rain. High 62°, low 41°.

Pressure30.00 inHg
Wind10.8 mph S
Humidity55%
Visibility—
Dew point43°
Tue, 1062° / 49°0.07Light rain
62 °Light rain

Decatur, Tuesday, 10 November

Light rain. High 62°, low 49°.

Pressure29.83 inHg
Wind10.4 mph SW
Humidity49%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1160° / 44°0.13Climate normal
60 °Climate normal

Decatur, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.13 in
Chance of precipitation28%
Record high74° (2024)
Record low28° (2025)
Thu, 1260° / 44°0.11Climate normal
60 °Climate normal

Decatur, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high60°
Average low44°
Average precipitation0.11 in
Chance of precipitation32%
Record high74° (1978)
Record low24° (2019)
Fri, 1358° / 42°0.04Climate normal
58 °Climate normal

Decatur, Friday, 13 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (1978)
Record low23° (2019)
Sat, 1458° / 42°0.09Climate normal
58 °Climate normal

Decatur, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.09 in
Chance of precipitation30%
Record high74° (1999)
Record low26° (1986)
Sun, 1558° / 43°0.2Climate normal
58 °Climate normal

Decatur, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.2 in
Chance of precipitation32%
Record high73° (1985)
Record low24° (1969)
Mon, 1659° / 43°0.14Climate normal
59 °Climate normal

Decatur, Monday, 16 November

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.14 in
Chance of precipitation32%
Record high74° (1964)
Record low30° (1995)
Tue, 1759° / 43°0.12Climate normal
59 °Climate normal

Decatur, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.12 in
Chance of precipitation35%
Record high76° (2016)
Record low28° (1997)
Wed, 1859° / 43°0.12Climate normal
59 °Climate normal

Decatur, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high59°
Average low43°
Average precipitation0.12 in
Chance of precipitation28%
Record high77° (2016)
Record low27° (2014)
Thu, 1959° / 44°0.11Climate normal
59 °Climate normal

Decatur, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.11 in
Chance of precipitation20%
Record high77° (2025)
Record low24° (2014)
Fri, 2058° / 43°0.09Climate normal
58 °Climate normal

Decatur, Friday, 20 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.09 in
Chance of precipitation32%
Record high71° (1979)
Record low29° (2022)
Sat, 2156° / 43°0.15Climate normal
56 °Climate normal

Decatur, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.15 in
Chance of precipitation30%
Record high70° (2007)
Record low28° (2022)
Sun, 2256° / 42°0.13Climate normal
56 °Climate normal

Decatur, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.13 in
Chance of precipitation28%
Record high73° (2025)
Record low25° (1964)
Mon, 2356° / 42°0.12Climate normal
56 °Climate normal

Decatur, Monday, 23 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.12 in
Chance of precipitation33%
Record high70° (1973)
Record low22° (1970)
Tue, 2457° / 42°0.16Climate normal
57 °Climate normal

Decatur, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.16 in
Chance of precipitation33%
Record high69° (1973)
Record low19° (1970)

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 Decatur, 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 Decatur, 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.