As of 07:45 PDT

Weather in Duncan, OR

61°

Duncan, Friday, 9 October, 07:45

Partly cloudy. Feels like 59°. High 68°, low 41°.

Pressure29.77 inHg

Wind4.5 mph W

Humidity52%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Monthly outlook for Duncan, OR: average high 64.1°, average low 43°. That is 4.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 24 October (75.3°), the coolest 10 October (29.3°).

64.1°/43°

Average high / low

+4.2°

Above normal

1 / 5

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	61.9°	57.4°	+2.5°
19 October – 28 October	67.7°	53.9°	+7.7°
29 October – 7 November	at normal	48.3°	—

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° / 29°

54 °

Duncan, Saturday, 10 October

Overcast. High 54°, low 29°.

Pressure29.83 inHg

Wind5.3 mph W

Humidity60%

Visibility6.2 mi

Dew point30°

Sun, 1144° / 35°

0.01

44 °

Duncan, Sunday, 11 October

Light rain. High 44°, low 35°.

Pressure29.94 inHg

Wind7.9 mph NW

Humidity81%

Visibility6.2 mi

Dew point34°

Mon, 1248° / 34°

48 °

Duncan, Monday, 12 October

Overcast. High 48°, low 34°.

Pressure30.09 inHg

Wind4.1 mph NW

Humidity64%

Visibility6.2 mi

Dew point28°

Tue, 1356° / 38°

56 °

Duncan, Tuesday, 13 October

Clear. High 56°, low 38°.

Pressure30.15 inHg

Wind6.1 mph NW

Humidity50%

Visibility—

Dew point32°

Wed, 1461° / 46°

61 °

Duncan, Wednesday, 14 October

Partly cloudy. High 61°, low 46°.

Pressure30.24 inHg

Wind8 mph W

Humidity49%

Visibility—

Dew point37°

Thu, 1570° / 47°

70 °

Duncan, Thursday, 15 October

Mostly clear. High 70°, low 47°.

Pressure30.27 inHg

Wind4.9 mph NW

Humidity46%

Visibility—

Dew point41°

Fri, 1673° / 47°

73 °

Duncan, Friday, 16 October

Overcast. High 73°, low 47°.

Pressure30.30 inHg

Wind6.1 mph SE

Humidity29%

Visibility—

Dew point30°

Sat, 1774° / 51°

74 °

Duncan, Saturday, 17 October

Overcast. High 74°, low 51°.

Pressure30.12 inHg

Wind6.2 mph SE

Humidity27%

Visibility—

Dew point30°

Sun, 1871° / 51°

71 °

Duncan, Sunday, 18 October

Overcast. High 71°, low 51°.

Pressure29.97 inHg

Wind4.5 mph SE

Humidity25%

Visibility—

Dew point27°

Mon, 1959° / 42°

59 °

Duncan, Monday, 19 October

Overcast. High 59°, low 42°.

Pressure30.00 inHg

Wind13.1 mph W

Humidity51%

Visibility—

Dew point37°

Tue, 2062° / 40°

62 °

Duncan, Tuesday, 20 October

Mostly clear. High 62°, low 40°.

Pressure30.21 inHg

Wind6.5 mph SE

Humidity40%

Visibility—

Dew point31°

Wed, 2167° / 47°

67 °

Duncan, Wednesday, 21 October

Mostly clear. High 67°, low 47°.

Pressure30.18 inHg

Wind10.4 mph W

Humidity22%

Visibility—

Dew point24°

Thu, 2270° / 45°

70 °

Duncan, Thursday, 22 October

Mostly clear. High 70°, low 45°.

Pressure30.24 inHg

Wind5.5 mph SE

Humidity36%

Visibility—

Dew point34°

Fri, 2373° / 46°

73 °

Duncan, Friday, 23 October

Clear. High 73°, low 46°.

Pressure30.06 inHg

Wind6.9 mph SE

Humidity22%

Visibility—

Dew point22°

Sat, 2475° / 49°

75 °

Duncan, Saturday, 24 October

Clear. High 75°, low 49°.

Pressure30.00 inHg

Wind7.3 mph SE

Humidity20%

Visibility—

Dew point23°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 2554° / 36°

0.09

54 °

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°

0.13

52 °

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°

0.09

51 °

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°

0.11

50 °

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°

0.12

49 °

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°

0.07

49 °

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°

0.13

48 °

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°

0.16

48 °

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°

0.09

48 °

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°

0.06

49 °

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°

0.15

49 °

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°

0.12

48 °

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°

0.16

47 °

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°

0.17

46 °

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.