Monthly outlook for Duncan, OR: average high 61°, average low 43°. That is 2.7° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.2 inches. The warmest day looks like 17 October (72.7°), the coolest 11 October (28.2°).
61°/43°
Average high / low
+2.7°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
58.9°
57.2°
+1°
20 October – 29 October
64.5°
53.1°
+6.3°
30 October – 8 November
at normal
47.9°
—
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).
Sun, 1150° / 28°0
50 °
Duncan, Sunday, 11 October
Overcast. High 50°, low 28°.
Pressure29.91 inHg
Wind5.8 mph NW
Humidity75%
Visibility6.2 mi
Dew point33°
Mon, 1245° / 34°0.02
45 °
Duncan, Monday, 12 October
Light rain. High 45°, low 34°.
Pressure30.09 inHg
Wind4.1 mph NW
Humidity75%
Visibility4.4 mi
Dew point31°
Tue, 1354° / 34°0
54 °
Duncan, Tuesday, 13 October
Clear. High 54°, low 34°.
Pressure30.12 inHg
Wind5.2 mph NW
Humidity49%
Visibility6.2 mi
Dew point31°
Wed, 1461° / 41°0
61 °
Duncan, Wednesday, 14 October
Mostly clear. High 61°, low 41°.
Pressure30.21 inHg
Wind6 mph NW
Humidity42%
Visibility—
Dew point32°
Thu, 1566° / 46°0
66 °
Duncan, Thursday, 15 October
Clear. High 66°, low 46°.
Pressure30.33 inHg
Wind6.3 mph NW
Humidity33%
Visibility—
Dew point33°
Fri, 1672° / 46°0
72 °
Duncan, Friday, 16 October
Clear. High 72°, low 46°.
Pressure30.33 inHg
Wind6.4 mph SE
Humidity37%
Visibility—
Dew point36°
Sat, 1773° / 52°0
73 °
Duncan, Saturday, 17 October
Overcast. High 73°, low 52°.
Pressure30.06 inHg
Wind7.6 mph SE
Humidity27%
Visibility—
Dew point30°
Sun, 1862° / 49°0
62 °
Duncan, Sunday, 18 October
Overcast. High 62°, low 49°.
Pressure30.06 inHg
Wind8.3 mph NW
Humidity54%
Visibility—
Dew point43°
Mon, 1954° / 43°0.07
54 °
Duncan, Monday, 19 October
Light rain. High 54°, low 43°.
Pressure30.03 inHg
Wind13.4 mph W
Humidity61%
Visibility—
Dew point40°
Tue, 2060° / 40°0
60 °
Duncan, Tuesday, 20 October
Partly cloudy. High 60°, low 40°.
Pressure30.24 inHg
Wind7.4 mph SE
Humidity51%
Visibility—
Dew point34°
Wed, 2158° / 44°0.02
58 °
Duncan, Wednesday, 21 October
Light rain. High 58°, low 44°.
Pressure30.21 inHg
Wind6.6 mph W
Humidity55%
Visibility—
Dew point37°
Thu, 2265° / 42°0
65 °
Duncan, Thursday, 22 October
Overcast. High 65°, low 42°.
Pressure29.97 inHg
Wind6.9 mph SE
Humidity29%
Visibility—
Dew point24°
Fri, 2365° / 51°0
65 °
Duncan, Friday, 23 October
Overcast. High 65°, low 51°.
Pressure29.91 inHg
Wind11.5 mph SW
Humidity38%
Visibility—
Dew point31°
Sat, 2468° / 52°0
68 °
Duncan, Saturday, 24 October
Overcast. High 68°, low 52°.
Pressure30.12 inHg
Wind6.8 mph NW
Humidity37%
Visibility—
Dew point38°
Sun, 2571° / 51°0
71 °
Duncan, Sunday, 25 October
Overcast. High 71°, low 51°.
Pressure30.27 inHg
Wind5.1 mph SE
Humidity45%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 0846° / 32°0.12
46 °
Duncan, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.12 in
Chance of precipitation43%
Record high66° (2016)
Record low9° (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.