As of 12:46 EDT

Weather in Duncan, IN

76°Current weather

Duncan, Monday, 12 October, 12:46

Overcast. Feels like 76°. High 76°, low 55°.

Pressure30.03 inHg
Wind4 mph S
Humidity70%
Visibility6.2 mi
Dew point65°

Monthly outlook for Duncan, IN: average high 73.6°, average low 54.6°. That is 4.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 14 October (84.3°), the coolest 18 October (40.2°).

73.6°/54.6°
Average high / low
+4.7°
Above normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October74.4°66.2°+4.6°
22 October – 31 October72.1°62.8°+5.2°
1 November – 10 Novemberat normal58.5°—

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).

Tue, 1380° / 64°0Clear
80 °Clear

Duncan, Tuesday, 13 October

Clear. High 80°, low 64°.

Pressure29.97 inHg
Wind11 mph SW
Humidity55%
Visibility6.2 mi
Dew point59°
Wed, 1484° / 68°0.01Light rain
84 °Light rain

Duncan, Wednesday, 14 October

Light rain. High 84°, low 68°.

Pressure30.06 inHg
Wind8.3 mph SW
Humidity70%
Visibility6.2 mi
Dew point70°
Thu, 1580° / 69°0.14Rain
80 °Rain

Duncan, Thursday, 15 October

Rain. High 80°, low 69°.

Pressure30.06 inHg
Wind9.3 mph SW
Humidity86%
Visibility5.7 mi
Dew point71°
Fri, 1671° / 53°0.14Light rain
71 °Light rain

Duncan, Friday, 16 October

Light rain. High 71°, low 53°.

Pressure30.15 inHg
Wind17.4 mph NW
Humidity61%
Visibility6.2 mi
Dew point48°
Sat, 1760° / 43°0Clear
60 °Clear

Duncan, Saturday, 17 October

Clear. High 60°, low 43°.

Pressure30.47 inHg
Wind12.4 mph NE
Humidity44%
Visibility—
Dew point35°
Sun, 1868° / 40°0Clear
68 °Clear

Duncan, Sunday, 18 October

Clear. High 68°, low 40°.

Pressure30.39 inHg
Wind9.2 mph SW
Humidity30%
Visibility—
Dew point30°
Mon, 1971° / 47°0Partly cloudy
71 °Partly cloudy

Duncan, Monday, 19 October

Partly cloudy. High 71°, low 47°.

Pressure30.30 inHg
Wind11.5 mph S
Humidity46%
Visibility—
Dew point45°
Tue, 2076° / 59°0.01Light rain
76 °Light rain

Duncan, Tuesday, 20 October

Light rain. High 76°, low 59°.

Pressure30.21 inHg
Wind5.8 mph SW
Humidity51%
Visibility—
Dew point54°
Wed, 2179° / 59°0Clear
79 °Clear

Duncan, Wednesday, 21 October

Clear. High 79°, low 59°.

Pressure30.27 inHg
Wind7.8 mph E
Humidity47%
Visibility—
Dew point53°
Thu, 2279° / 57°0Clear
79 °Clear

Duncan, Thursday, 22 October

Clear. High 79°, low 57°.

Pressure30.33 inHg
Wind7.4 mph E
Humidity40%
Visibility—
Dew point48°
Fri, 2376° / 61°0Overcast
76 °Overcast

Duncan, Friday, 23 October

Overcast. High 76°, low 61°.

Pressure30.33 inHg
Wind12.4 mph SW
Humidity41%
Visibility—
Dew point49°
Sat, 2478° / 57°0Overcast
78 °Overcast

Duncan, Saturday, 24 October

Overcast. High 78°, low 57°.

Pressure30.18 inHg
Wind11.8 mph SW
Humidity40%
Visibility—
Dew point48°
Sun, 2570° / 57°0.01Light rain
70 °Light rain

Duncan, Sunday, 25 October

Light rain. High 70°, low 57°.

Pressure29.97 inHg
Wind15.6 mph W
Humidity48%
Visibility—
Dew point49°
Mon, 2661° / 46°0Overcast
61 °Overcast

Duncan, Monday, 26 October

Overcast. High 61°, low 46°.

Pressure30.12 inHg
Wind12.3 mph NW
Humidity42%
Visibility—
Dew point34°
Tue, 2769° / 41°0Partly cloudy
69 °Partly cloudy

Duncan, Tuesday, 27 October

Partly cloudy. High 69°, low 41°.

Pressure29.80 inHg
Wind15 mph W
Humidity31%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2861° / 46°0.09Climate normal
61 °Climate normal

Duncan, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high61°
Average low46°
Average precipitation0.09 in
Chance of precipitation35%
Record high76° (1999)
Record low28° (1976)
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)

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.