As of 05:27 PDT

Weather in Duncan, OR

62°Current weather

Duncan, Friday, 9 October, 05:27

Partly cloudy. Feels like 61°. High 68°, low 40°.

Pressure29.80 inHg
Wind3.3 mph SE
Humidity59%
Visibility6.2 mi
Dew point45°

Monthly outlook for Duncan, OR: average high 58.4°, average low 40.8°. That is 1° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 5 days and 1.1 inches. The warmest day looks like 17 October (73.1°), the coolest 10 October (28.7°).

58.4°/40.8°
Average high / low
+1°
Above normal
2 / 5
Wet days / normal
0.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October59.9°57.4°+1.4°
19 October – 28 October56°53.9°+1.1°
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, 1055° / 29°0Overcast
55 °Overcast

Duncan, Saturday, 10 October

Overcast. High 55°, low 29°.

Pressure29.83 inHg
Wind4.5 mph W
Humidity57%
Visibility6.2 mi
Dew point28°
Sun, 1143° / 36°0.02Snow
43 °Snow

Duncan, Sunday, 11 October

Snow. High 43°, low 36°.

Pressure29.94 inHg
Wind6 mph NW
Humidity92%
Visibility4.2 mi
Dew point34°
Mon, 1247° / 34°0.01Light snow
47 °Light snow

Duncan, Monday, 12 October

Light snow. High 47°, low 34°.

Pressure30.06 inHg
Wind4.7 mph NW
Humidity68%
Visibility6.2 mi
Dew point29°
Tue, 1357° / 34°0Clear
57 °Clear

Duncan, Tuesday, 13 October

Clear. High 57°, low 34°.

Pressure30.12 inHg
Wind7 mph SW
Humidity47%
Visibility—
Dew point31°
Wed, 1461° / 47°0.01Light rain
61 °Light rain

Duncan, Wednesday, 14 October

Light rain. High 61°, low 47°.

Pressure30.24 inHg
Wind11.9 mph W
Humidity69%
Visibility—
Dew point45°
Thu, 1562° / 44°0Clear
62 °Clear

Duncan, Thursday, 15 October

Clear. High 62°, low 44°.

Pressure30.36 inHg
Wind7.2 mph NW
Humidity35%
Visibility—
Dew point30°
Fri, 1671° / 44°0Overcast
71 °Overcast

Duncan, Friday, 16 October

Overcast. High 71°, low 44°.

Pressure30.33 inHg
Wind6.4 mph SE
Humidity20%
Visibility—
Dew point19°
Sat, 1773° / 49°0Overcast
73 °Overcast

Duncan, Saturday, 17 October

Overcast. High 73°, low 49°.

Pressure30.18 inHg
Wind6.3 mph SE
Humidity20%
Visibility—
Dew point22°
Sun, 1863° / 51°0Overcast
63 °Overcast

Duncan, Sunday, 18 October

Overcast. High 63°, low 51°.

Pressure30.06 inHg
Wind6.6 mph NW
Humidity42%
Visibility—
Dew point37°
Mon, 1961° / 46°0.05Light rain
61 °Light rain

Duncan, Monday, 19 October

Light rain. High 61°, low 46°.

Pressure29.97 inHg
Wind9.2 mph W
Humidity46%
Visibility—
Dew point38°
Tue, 2045° / 40°0.82Snow
45 °Snow

Duncan, Tuesday, 20 October

Snow. High 45°, low 40°.

Pressure30.15 inHg
Wind8.5 mph W
Humidity99%
Visibility—
Dew point41°
Wed, 2149° / 38°0Partly cloudy
49 °Partly cloudy

Duncan, Wednesday, 21 October

Partly cloudy. High 49°, low 38°.

Pressure30.27 inHg
Wind5 mph N
Humidity75%
Visibility—
Dew point40°
Thu, 2258° / 36°0Clear
58 °Clear

Duncan, Thursday, 22 October

Clear. High 58°, low 36°.

Pressure30.12 inHg
Wind5.5 mph SE
Humidity59%
Visibility—
Dew point35°
Fri, 2361° / 41°0Clear
61 °Clear

Duncan, Friday, 23 October

Clear. High 61°, low 41°.

Pressure29.94 inHg
Wind5.5 mph SE
Humidity43%
Visibility—
Dew point32°
Sat, 2462° / 44°0Overcast
62 °Overcast

Duncan, Saturday, 24 October

Overcast. High 62°, low 44°.

Pressure29.94 inHg
Wind4.5 mph SE
Humidity51%
Visibility—
Dew point37°
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.