As of 16:26 EDT

Weather in Duncan, IN

88°Current weather

Duncan, Tuesday, 13 October, 16:26

Clear. Feels like 90°. High 88°, low 63°.

Pressure29.94 inHg
Wind4 mph S
Humidity46%
Visibility6.2 mi
Dew point65°

Monthly outlook for Duncan, IN: average high 69.7°, average low 52.6°. That is 2.9° above the climate normal for October. Precipitation is expected on 6 days (about 1.3 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 13 October (88.4°), the coolest 18 October (40.1°).

69.7°/52.6°
Average high / low
+2.9°
Above normal
6 / 5
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
13 October – 22 October71.5°65.7°+3.2°
23 October – 1 November66.7°62.6°+2.3°
2 November – 11 Novemberat normal57.8°—

October records over 66 years

92.1°1 October 2019All-time high
27.9°28 October 1976All-time low

Climate normals and records are computed from the nearest reference point — New Middletown (11 mi).

Wed, 1482° / 61°0.41Rain
82 °Rain

Duncan, Wednesday, 14 October

Rain. High 82°, low 61°.

Pressure30.06 inHg
Wind7 mph W
Humidity80%
Visibility6.2 mi
Dew point69°
Thu, 1579° / 62°0.19Rain
79 °Rain

Duncan, Thursday, 15 October

Rain. High 79°, low 62°.

Pressure30.06 inHg
Wind8 mph S
Humidity84%
Visibility6.2 mi
Dew point71°
Fri, 1675° / 53°0.12Rain
75 °Rain

Duncan, Friday, 16 October

Rain. High 75°, low 53°.

Pressure30.00 inHg
Wind16.6 mph NW
Humidity72%
Visibility6.2 mi
Dew point50°
Sat, 1757° / 45°0Clear
57 °Clear

Duncan, Saturday, 17 October

Clear. High 57°, low 45°.

Pressure30.47 inHg
Wind9.5 mph NE
Humidity48%
Visibility6.2 mi
Dew point33°
Sun, 1864° / 40°0Clear
64 °Clear

Duncan, Sunday, 18 October

Clear. High 64°, low 40°.

Pressure30.42 inHg
Wind7.6 mph SE
Humidity42%
Visibility—
Dew point36°
Mon, 1970° / 50°0Overcast
70 °Overcast

Duncan, Monday, 19 October

Overcast. High 70°, low 50°.

Pressure30.36 inHg
Wind9.9 mph S
Humidity53%
Visibility—
Dew point46°
Tue, 2060° / 57°0.23Rain
60 °Rain

Duncan, Tuesday, 20 October

Rain. High 60°, low 57°.

Pressure30.30 inHg
Wind5.3 mph SE
Humidity94%
Visibility—
Dew point58°
Wed, 2167° / 57°0.02Light rain
67 °Light rain

Duncan, Wednesday, 21 October

Light rain. High 67°, low 57°.

Pressure30.18 inHg
Wind7.2 mph SE
Humidity74%
Visibility—
Dew point57°
Thu, 2274° / 61°0.25Rain
74 °Rain

Duncan, Thursday, 22 October

Rain. High 74°, low 61°.

Pressure30.06 inHg
Wind9.1 mph S
Humidity86%
Visibility—
Dew point62°
Fri, 2370° / 60°0.05Light rain
70 °Light rain

Duncan, Friday, 23 October

Light rain. High 70°, low 60°.

Pressure30.00 inHg
Wind15.9 mph S
Humidity84%
Visibility—
Dew point60°
Sat, 2474° / 54°0Partly cloudy
74 °Partly cloudy

Duncan, Saturday, 24 October

Partly cloudy. High 74°, low 54°.

Pressure30.21 inHg
Wind6.3 mph N
Humidity38%
Visibility—
Dew point43°
Sun, 2564° / 47°0Overcast
64 °Overcast

Duncan, Sunday, 25 October

Overcast. High 64°, low 47°.

Pressure30.21 inHg
Wind8.6 mph E
Humidity40%
Visibility—
Dew point37°
Mon, 2663° / 44°0Overcast
63 °Overcast

Duncan, Monday, 26 October

Overcast. High 63°, low 44°.

Pressure30.12 inHg
Wind11 mph NW
Humidity31%
Visibility—
Dew point29°
Tue, 2759° / 41°0Overcast
59 °Overcast

Duncan, Tuesday, 27 October

Overcast. High 59°, low 41°.

Pressure30.24 inHg
Wind9.8 mph E
Humidity36%
Visibility—
Dew point29°
Wed, 2871° / 47°0.02Light rain
71 °Light rain

Duncan, Wednesday, 28 October

Light rain. High 71°, low 47°.

Pressure30.12 inHg
Wind8.1 mph S
Humidity42%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2961° / 46°0.13Climate normal
61 °Climate normal

Duncan, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high61°
Average low46°
Average precipitation0.13 in
Chance of precipitation28%
Record high79° (2016)
Record low30° (1976)
Fri, 3063° / 46°0.09Climate normal
63 °Climate normal

Duncan, Friday, 30 October

Climate normal for this date — 60-year average.

Average high63°
Average low46°
Average precipitation0.09 in
Chance of precipitation28%
Record high78° (2016)
Record low32° (2017)
Sat, 3164° / 48°0.12Climate normal
64 °Climate normal

Duncan, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high64°
Average low48°
Average precipitation0.12 in
Chance of precipitation30%
Record high77° (1974)
Record low29° (2023)
Sun, 0163° / 47°0.15Climate normal
63 °Climate normal

Duncan, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high63°
Average low47°
Average precipitation0.15 in
Chance of precipitation35%
Record high81° (2016)
Record low24° (1993)
Mon, 0261° / 45°0.09Climate normal
61 °Climate normal

Duncan, Monday, 2 November

Climate normal for this date — 60-year average.

Average high61°
Average low45°
Average precipitation0.09 in
Chance of precipitation33%
Record high80° (2016)
Record low26° (1993)
Tue, 0359° / 44°0.07Climate normal
59 °Climate normal

Duncan, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.07 in
Chance of precipitation30%
Record high77° (2003)
Record low22° (1966)
Wed, 0459° / 44°0.06Climate normal
59 °Climate normal

Duncan, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high59°
Average low44°
Average precipitation0.06 in
Chance of precipitation25%
Record high77° (2003)
Record low22° (1991)
Thu, 0558° / 44°0.08Climate normal
58 °Climate normal

Duncan, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high58°
Average low44°
Average precipitation0.08 in
Chance of precipitation32%
Record high77° (2024)
Record low21° (1991)
Fri, 0657° / 42°0.12Climate normal
57 °Climate normal

Duncan, Friday, 6 November

Climate normal for this date — 60-year average.

Average high57°
Average low42°
Average precipitation0.12 in
Chance of precipitation35%
Record high74° (1975)
Record low27° (1967)
Sat, 0757° / 43°0.14Climate normal
57 °Climate normal

Duncan, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high57°
Average low43°
Average precipitation0.14 in
Chance of precipitation30%
Record high72° (2023)
Record low27° (1971)
Sun, 0858° / 43°0.05Climate normal
58 °Climate normal

Duncan, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.05 in
Chance of precipitation15%
Record high78° (2023)
Record low22° (2019)
Mon, 0958° / 42°0.11Climate normal
58 °Climate normal

Duncan, Monday, 9 November

Climate normal for this date — 60-year average.

Average high58°
Average low42°
Average precipitation0.11 in
Chance of precipitation30%
Record high75° (2020)
Record low22° (1991)
Tue, 1056° / 42°0.15Climate normal
56 °Climate normal

Duncan, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.15 in
Chance of precipitation32%
Record high77° (2020)
Record low21° (2018)
Wed, 1155° / 40°0.11Climate normal
55 °Climate normal

Duncan, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation30%
Record high73° (2010)
Record low24° (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 Duncan, IN 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 Duncan, IN 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.