As of 17:19 CDT

Weather in Duncan, OK

77°Current weather

Duncan, Wednesday, 14 October, 17:19

Partly cloudy. Feels like 77°. High 79°, low 67°.

Pressure29.91 inHg
Wind15 mph E
Humidity65%
Visibility2.8 mi
Dew point66°

Monthly outlook for Duncan, OK: average high 68.7°, average low 54.5°. That is 2° below the climate normal for October. Precipitation is expected on 5 days (about 3.2 inches), against a normal of 4 days and 1.7 inches. The warmest day looks like 21 October (82°), the coolest 18 October (43°).

68.7°/54.5°
Average high / low
−2°
Below normal
5 / 4
Wet days / normal
3.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
14 October – 23 October72.4°73.9°-0.8°
24 October – 2 November62.5°68.8°-3.5°
3 November – 12 Novemberat normal65.1°—

October records over 66 years

97.7°8 October 1979All-time high
25°31 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Sunray (9 mi).

Thu, 1576° / 62°1.76Heavy rain
76 °Heavy rain

Duncan, Thursday, 15 October

Heavy rain. High 76°, low 62°.

Pressure30.00 inHg
Wind9.2 mph SW
Humidity92%
Visibility2.5 mi
Dew point72°
Fri, 1661° / 51°0Partly cloudy
61 °Partly cloudy

Duncan, Friday, 16 October

Partly cloudy. High 61°, low 51°.

Pressure30.53 inHg
Wind24.9 mph N
Humidity45%
Visibility6.2 mi
Dew point34°
Sat, 1758° / 43°0Clear
58 °Clear

Duncan, Saturday, 17 October

Clear. High 58°, low 43°.

Pressure30.59 inHg
Wind7 mph N
Humidity56%
Visibility6.2 mi
Dew point38°
Sun, 1861° / 43°0Overcast
61 °Overcast

Duncan, Sunday, 18 October

Overcast. High 61°, low 43°.

Pressure30.42 inHg
Wind6.6 mph S
Humidity62%
Visibility6.2 mi
Dew point44°
Mon, 1967° / 49°0Partly cloudy
67 °Partly cloudy

Duncan, Monday, 19 October

Partly cloudy. High 67°, low 49°.

Pressure30.33 inHg
Wind8.7 mph S
Humidity50%
Visibility—
Dew point44°
Tue, 2077° / 52°0Clear
77 °Clear

Duncan, Tuesday, 20 October

Clear. High 77°, low 52°.

Pressure30.18 inHg
Wind11.1 mph SE
Humidity63%
Visibility—
Dew point56°
Wed, 2182° / 66°0Overcast
82 °Overcast

Duncan, Wednesday, 21 October

Overcast. High 82°, low 66°.

Pressure30.12 inHg
Wind13.6 mph S
Humidity61%
Visibility—
Dew point59°
Thu, 2282° / 67°0.02Light rain
82 °Light rain

Duncan, Thursday, 22 October

Light rain. High 82°, low 67°.

Pressure30.06 inHg
Wind15.6 mph S
Humidity46%
Visibility—
Dew point57°
Fri, 2381° / 68°0.1Light rain
81 °Light rain

Duncan, Friday, 23 October

Light rain. High 81°, low 68°.

Pressure29.94 inHg
Wind22.3 mph S
Humidity58%
Visibility—
Dew point62°
Sat, 2471° / 57°0.24Rain
71 °Rain

Duncan, Saturday, 24 October

Rain. High 71°, low 57°.

Pressure30.24 inHg
Wind19.8 mph N
Humidity54%
Visibility—
Dew point47°
Sun, 2560° / 52°0Overcast
60 °Overcast

Duncan, Sunday, 25 October

Overcast. High 60°, low 52°.

Pressure30.45 inHg
Wind17.6 mph NE
Humidity42%
Visibility—
Dew point33°
Mon, 2660° / 51°0Overcast
60 °Overcast

Duncan, Monday, 26 October

Overcast. High 60°, low 51°.

Pressure30.36 inHg
Wind12.7 mph E
Humidity36%
Visibility—
Dew point32°
Tue, 2755° / 48°0.28Light rain
55 °Light rain

Duncan, Tuesday, 27 October

Light rain. High 55°, low 48°.

Pressure30.24 inHg
Wind10.8 mph SE
Humidity90%
Visibility—
Dew point45°
Wed, 2859° / 48°0Overcast
59 °Overcast

Duncan, Wednesday, 28 October

Overcast. High 59°, low 48°.

Pressure30.03 inHg
Wind11.2 mph S
Humidity76%
Visibility—
Dew point48°
Thu, 2970° / 48°0Clear
70 °Clear

Duncan, Thursday, 29 October

Clear. High 70°, low 48°.

Pressure30.09 inHg
Wind8.3 mph S
Humidity63%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3069° / 53°0.21Climate normal
69 °Climate normal

Duncan, Friday, 30 October

Climate normal for this date — 60-year average.

Average high69°
Average low53°
Average precipitation0.21 in
Chance of precipitation28%
Record high88° (2003)
Record low31° (1993)
Sat, 3168° / 51°0.14Climate normal
68 °Climate normal

Duncan, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high68°
Average low51°
Average precipitation0.14 in
Chance of precipitation32%
Record high85° (1992)
Record low25° (2019)
Sun, 0167° / 50°0.1Climate normal
67 °Climate normal

Duncan, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high67°
Average low50°
Average precipitation0.1 in
Chance of precipitation18%
Record high83° (2016)
Record low28° (1991)
Mon, 0266° / 49°0.09Climate normal
66 °Climate normal

Duncan, Monday, 2 November

Climate normal for this date — 60-year average.

Average high66°
Average low49°
Average precipitation0.09 in
Chance of precipitation20%
Record high84° (2012)
Record low26° (1991)
Tue, 0365° / 49°0.11Climate normal
65 °Climate normal

Duncan, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high65°
Average low49°
Average precipitation0.11 in
Chance of precipitation22%
Record high82° (1978)
Record low22° (1991)
Wed, 0466° / 48°0.1Climate normal
66 °Climate normal

Duncan, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high66°
Average low48°
Average precipitation0.1 in
Chance of precipitation18%
Record high83° (2017)
Record low26° (1991)
Thu, 0566° / 49°0.05Climate normal
66 °Climate normal

Duncan, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high66°
Average low49°
Average precipitation0.05 in
Chance of precipitation15%
Record high82° (2017)
Record low32° (1992)
Fri, 0666° / 49°0.09Climate normal
66 °Climate normal

Duncan, Friday, 6 November

Climate normal for this date — 60-year average.

Average high66°
Average low49°
Average precipitation0.09 in
Chance of precipitation18%
Record high79° (2023)
Record low33° (1993)
Sat, 0766° / 49°0.06Climate normal
66 °Climate normal

Duncan, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high66°
Average low49°
Average precipitation0.06 in
Chance of precipitation15%
Record high82° (2005)
Record low33° (1993)
Sun, 0866° / 50°0.09Climate normal
66 °Climate normal

Duncan, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high66°
Average low50°
Average precipitation0.09 in
Chance of precipitation18%
Record high83° (2005)
Record low26° (1991)
Mon, 0966° / 50°0.03Climate normal
66 °Climate normal

Duncan, Monday, 9 November

Climate normal for this date — 60-year average.

Average high66°
Average low50°
Average precipitation0.03 in
Chance of precipitation15%
Record high84° (1988)
Record low31° (2000)
Tue, 1065° / 47°0.05Climate normal
65 °Climate normal

Duncan, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high65°
Average low47°
Average precipitation0.05 in
Chance of precipitation18%
Record high81° (1995)
Record low27° (2018)
Wed, 1164° / 46°0.07Climate normal
64 °Climate normal

Duncan, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high64°
Average low46°
Average precipitation0.07 in
Chance of precipitation13%
Record high78° (1999)
Record low27° (2019)
Thu, 1262° / 45°0.07Climate normal
62 °Climate normal

Duncan, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high62°
Average low45°
Average precipitation0.07 in
Chance of precipitation20%
Record high82° (2005)
Record low17° (2019)

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, OK 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, OK 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.