As of 22:23 PDT

Weather in Duncan, OR

50°Current weather

Duncan, Friday, 9 October, 22:23

Overcast. Feels like 49°. High 67°, low 48°.

Pressure29.71 inHg
Wind8.5 mph W
Humidity87%
Visibility6.2 mi
Dew point47°

Monthly outlook for Duncan, OR: average high 57.5°, average low 39.9°. That is 0.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 16 October (68.6°), the coolest 11 October (28.3°).

57.5°/39.9°
Average high / low
+0.5°
Above normal
4 / 5
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October59.6°57.4°+1.2°
19 October – 28 October53.9°53.9°-0°
29 October – 7 Novemberat normal48.3°—

October records over 66 years

82°2 October 1975All-time high
3°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Meacham (7 mi).

Sat, 1054° / 31°0Overcast
54 °Overcast

Duncan, Saturday, 10 October

Overcast. High 54°, low 31°.

Pressure29.83 inHg
Wind5.3 mph W
Humidity61%
Visibility6.2 mi
Dew point30°
Sun, 1143° / 28°0.03Snow
43 °Snow

Duncan, Sunday, 11 October

Snow. High 43°, low 28°.

Pressure29.97 inHg
Wind6.2 mph NW
Humidity94%
Visibility4.1 mi
Dew point35°
Mon, 1249° / 35°0Partly cloudy
49 °Partly cloudy

Duncan, Monday, 12 October

Partly cloudy. High 49°, low 35°.

Pressure30.06 inHg
Wind4.3 mph NW
Humidity60%
Visibility6.2 mi
Dew point29°
Tue, 1356° / 36°0Clear
56 °Clear

Duncan, Tuesday, 13 October

Clear. High 56°, low 36°.

Pressure30.12 inHg
Wind4.7 mph NW
Humidity47%
Visibility6.2 mi
Dew point29°
Wed, 1462° / 43°0Clear
62 °Clear

Duncan, Wednesday, 14 October

Clear. High 62°, low 43°.

Pressure30.21 inHg
Wind5.7 mph NW
Humidity37%
Visibility—
Dew point31°
Thu, 1568° / 46°0Mostly clear
68 °Mostly clear

Duncan, Thursday, 15 October

Mostly clear. High 68°, low 46°.

Pressure30.27 inHg
Wind6.4 mph N
Humidity36%
Visibility—
Dew point36°
Fri, 1669° / 43°0Clear
69 °Clear

Duncan, Friday, 16 October

Clear. High 69°, low 43°.

Pressure30.33 inHg
Wind6.8 mph SE
Humidity25%
Visibility—
Dew point23°
Sat, 1769° / 48°0Overcast
69 °Overcast

Duncan, Saturday, 17 October

Overcast. High 69°, low 48°.

Pressure30.09 inHg
Wind7.6 mph SE
Humidity30%
Visibility—
Dew point31°
Sun, 1860° / 46°0.06Light rain
60 °Light rain

Duncan, Sunday, 18 October

Light rain. High 60°, low 46°.

Pressure30.00 inHg
Wind9.6 mph W
Humidity44%
Visibility—
Dew point35°
Mon, 1958° / 42°0.01Light rain
58 °Light rain

Duncan, Monday, 19 October

Light rain. High 58°, low 42°.

Pressure30.03 inHg
Wind8.1 mph W
Humidity50%
Visibility—
Dew point32°
Tue, 2051° / 39°0.11Light rain
51 °Light rain

Duncan, Tuesday, 20 October

Light rain. High 51°, low 39°.

Pressure30.06 inHg
Wind17.3 mph W
Humidity71%
Visibility—
Dew point38°
Wed, 2149° / 37°0.16Light rain
49 °Light rain

Duncan, Wednesday, 21 October

Light rain. High 49°, low 37°.

Pressure30.03 inHg
Wind9.8 mph SE
Humidity48%
Visibility—
Dew point29°
Thu, 2247° / 37°0.01Light snow
47 °Light snow

Duncan, Thursday, 22 October

Light snow. High 47°, low 37°.

Pressure30.21 inHg
Wind13.1 mph W
Humidity62%
Visibility—
Dew point32°
Fri, 2357° / 38°0Partly cloudy
57 °Partly cloudy

Duncan, Friday, 23 October

Partly cloudy. High 57°, low 38°.

Pressure30.45 inHg
Wind4.9 mph SE
Humidity48%
Visibility—
Dew point30°
Sat, 2461° / 40°0Overcast
61 °Overcast

Duncan, Saturday, 24 October

Overcast. High 61°, low 40°.

Pressure30.39 inHg
Wind5.7 mph SE
Humidity33%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2554° / 36°0.09Climate normal
54 °Climate normal

Duncan, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high54°
Average low36°
Average precipitation0.09 in
Chance of precipitation38%
Record high70° (1965)
Record low14° (2020)
Mon, 2652° / 35°0.13Climate normal
52 °Climate normal

Duncan, Monday, 26 October

Climate normal for this date — 60-year average.

Average high52°
Average low35°
Average precipitation0.13 in
Chance of precipitation50%
Record high69° (1986)
Record low17° (2020)
Tue, 2751° / 34°0.09Climate normal
51 °Climate normal

Duncan, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high51°
Average low34°
Average precipitation0.09 in
Chance of precipitation42%
Record high69° (1987)
Record low10° (1970)
Wed, 2850° / 34°0.11Climate normal
50 °Climate normal

Duncan, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°
Average low34°
Average precipitation0.11 in
Chance of precipitation48%
Record high69° (1987)
Record low9° (1971)
Thu, 2949° / 33°0.12Climate normal
49 °Climate normal

Duncan, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.12 in
Chance of precipitation45%
Record high67° (1962)
Record low6° (1971)
Fri, 3049° / 33°0.07Climate normal
49 °Climate normal

Duncan, Friday, 30 October

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation37%
Record high68° (2008)
Record low3° (1991)
Sat, 3148° / 34°0.13Climate normal
48 °Climate normal

Duncan, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.13 in
Chance of precipitation48%
Record high69° (1988)
Record low14° (2002)
Sun, 0148° / 33°0.16Climate normal
48 °Climate normal

Duncan, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.16 in
Chance of precipitation47%
Record high69° (1965)
Record low10° (1984)
Mon, 0248° / 32°0.09Climate normal
48 °Climate normal

Duncan, Monday, 2 November

Climate normal for this date — 60-year average.

Average high48°
Average low32°
Average precipitation0.09 in
Chance of precipitation40%
Record high64° (1981)
Record low6° (1991)
Tue, 0349° / 33°0.06Climate normal
49 °Climate normal

Duncan, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (2020)
Record low5° (1973)
Wed, 0449° / 34°0.15Climate normal
49 °Climate normal

Duncan, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.15 in
Chance of precipitation50%
Record high65° (1980)
Record low18° (1973)
Thu, 0548° / 33°0.12Climate normal
48 °Climate normal

Duncan, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.12 in
Chance of precipitation43%
Record high65° (2010)
Record low-3° (1971)
Fri, 0647° / 33°0.16Climate normal
47 °Climate normal

Duncan, Friday, 6 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.16 in
Chance of precipitation55%
Record high66° (2012)
Record low8° (1971)
Sat, 0746° / 32°0.17Climate normal
46 °Climate normal

Duncan, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.17 in
Chance of precipitation53%
Record high65° (1999)
Record low16° (1994)

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, OR 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, OR 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.