As of 05:22 CDT

Weather in Duncan, OK

66°Current weather

Duncan, Monday, 12 October, 05:22

Clear. Feels like 66°. High 90°, low 66°.

Pressure29.94 inHg
Wind9.2 mph S
Humidity82%
Visibility6.2 mi
Dew point60°

Monthly outlook for Duncan, OK: average high 77.9°, average low 61°. That is 2.5° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 13 October (92.6°), the coolest 18 October (45.9°).

77.9°/61°
Average high / low
+2.5°
Above normal
3 / 4
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October79.1°74.7°+2.4°
22 October – 31 October75.9°70.1°+3.2°
1 November – 10 Novemberat normal65.8°—

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).

Tue, 1393° / 70°0Mostly clear
93 °Mostly clear

Duncan, Tuesday, 13 October

Mostly clear. High 93°, low 70°.

Pressure29.91 inHg
Wind13.2 mph S
Humidity56%
Visibility6.2 mi
Dew point71°
Wed, 1486° / 72°1.13Heavy rain
86 °Heavy rain

Duncan, Wednesday, 14 October

Heavy rain. High 86°, low 72°.

Pressure29.97 inHg
Wind7.2 mph SW
Humidity67%
Visibility6.2 mi
Dew point72°
Thu, 1585° / 72°0.02Light rain
85 °Light rain

Duncan, Thursday, 15 October

Light rain. High 85°, low 72°.

Pressure30.03 inHg
Wind7.7 mph S
Humidity62%
Visibility6.2 mi
Dew point67°
Fri, 1670° / 57°0.03Light rain
70 °Light rain

Duncan, Friday, 16 October

Light rain. High 70°, low 57°.

Pressure30.42 inHg
Wind24.6 mph N
Humidity51%
Visibility—
Dew point44°
Sat, 1765° / 51°0Overcast
65 °Overcast

Duncan, Saturday, 17 October

Overcast. High 65°, low 51°.

Pressure30.36 inHg
Wind13.8 mph NE
Humidity56%
Visibility—
Dew point45°
Sun, 1869° / 46°0Clear
69 °Clear

Duncan, Sunday, 18 October

Clear. High 69°, low 46°.

Pressure30.21 inHg
Wind12.4 mph S
Humidity40%
Visibility—
Dew point38°
Mon, 1972° / 56°0.04Light rain
72 °Light rain

Duncan, Monday, 19 October

Light rain. High 72°, low 56°.

Pressure30.15 inHg
Wind19.8 mph S
Humidity52%
Visibility—
Dew point50°
Tue, 2080° / 56°0.05Light rain
80 °Light rain

Duncan, Tuesday, 20 October

Light rain. High 80°, low 56°.

Pressure30.09 inHg
Wind10.6 mph S
Humidity54%
Visibility—
Dew point56°
Wed, 2181° / 66°0Clear
81 °Clear

Duncan, Wednesday, 21 October

Clear. High 81°, low 66°.

Pressure30.06 inHg
Wind15.1 mph SE
Humidity58%
Visibility—
Dew point62°
Thu, 2274° / 65°0Overcast
74 °Overcast

Duncan, Thursday, 22 October

Overcast. High 74°, low 65°.

Pressure30.15 inHg
Wind13.8 mph SE
Humidity82%
Visibility—
Dew point65°
Fri, 2384° / 67°0Overcast
84 °Overcast

Duncan, Friday, 23 October

Overcast. High 84°, low 67°.

Pressure30.21 inHg
Wind10.5 mph SE
Humidity51%
Visibility—
Dew point60°
Sat, 2483° / 69°0Overcast
83 °Overcast

Duncan, Saturday, 24 October

Overcast. High 83°, low 69°.

Pressure30.09 inHg
Wind17.6 mph S
Humidity50%
Visibility—
Dew point59°
Sun, 2576° / 62°0.05Light rain
76 °Light rain

Duncan, Sunday, 25 October

Light rain. High 76°, low 62°.

Pressure30.09 inHg
Wind15.7 mph N
Humidity33%
Visibility—
Dew point42°
Mon, 2669° / 53°0Clear
69 °Clear

Duncan, Monday, 26 October

Clear. High 69°, low 53°.

Pressure30.18 inHg
Wind13.7 mph N
Humidity29%
Visibility—
Dew point32°
Tue, 2770° / 47°0Clear
70 °Clear

Duncan, Tuesday, 27 October

Clear. High 70°, low 47°.

Pressure30.12 inHg
Wind8.9 mph N
Humidity38%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2868° / 52°0.13Climate normal
68 °Climate normal

Duncan, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high68°
Average low52°
Average precipitation0.13 in
Chance of precipitation25%
Record high89° (2024)
Record low35° (2017)
Thu, 2969° / 52°0.11Climate normal
69 °Climate normal

Duncan, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high69°
Average low52°
Average precipitation0.11 in
Chance of precipitation20%
Record high84° (2003)
Record low36° (1980)
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)

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.