Monthly outlook for Duncan, CO: average high 50.3°, average low 35.2°. That is 2° below the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 19 October (59.5°), the coolest 25 October (24°).
50.3°/35.2°
Average high / low
−2°
Below normal
4 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
53.2°
55.6°
-1.3°
25 October – 3 November
45.6°
49.4°
-2.1°
4 November – 13 November
at normal
45.6°
—
October records over 66 years
76.8°1 October 2010All-time high
-7.2°30 October 1993All-time low
Climate normals and records are computed from the nearest reference point — Crestone (9 mi).
Fri, 1656° / 29°0
56 °
Duncan, Friday, 16 October
Clear. High 56°, low 29°.
Pressure30.59 inHg
Wind0.9 mph E
Humidity50%
Visibility6.2 mi
Dew point11°
Sat, 1758° / 42°0
58 °
Duncan, Saturday, 17 October
Clear. High 58°, low 42°.
Pressure30.45 inHg
Wind3.3 mph SW
Humidity55%
Visibility6.2 mi
Dew point27°
Sun, 1857° / 45°0.02
57 °
Duncan, Sunday, 18 October
Light rain. High 57°, low 45°.
Pressure30.24 inHg
Wind3.1 mph SW
Humidity52%
Visibility6.2 mi
Dew point25°
Mon, 1959° / 45°0
59 °
Duncan, Monday, 19 October
Overcast. High 59°, low 45°.
Pressure30.24 inHg
Wind4.8 mph SW
Humidity64%
Visibility—
Dew point42°
Tue, 2057° / 47°0.07
57 °
Duncan, Tuesday, 20 October
Light rain. High 57°, low 47°.
Pressure30.12 inHg
Wind9.5 mph S
Humidity64%
Visibility—
Dew point42°
Wed, 2156° / 45°0.23
56 °
Duncan, Wednesday, 21 October
Light rain. High 56°, low 45°.
Pressure29.91 inHg
Wind14.7 mph S
Humidity62%
Visibility—
Dew point40°
Thu, 2248° / 35°0.19
48 °
Duncan, Thursday, 22 October
Snow. High 48°, low 35°.
Pressure29.74 inHg
Wind18 mph SW
Humidity45%
Visibility—
Dew point25°
Fri, 2347° / 30°0
47 °
Duncan, Friday, 23 October
Mostly clear. High 47°, low 30°.
Pressure30.03 inHg
Wind14.4 mph SW
Humidity48%
Visibility—
Dew point22°
Sat, 2445° / 29°0
45 °
Duncan, Saturday, 24 October
Clear. High 45°, low 29°.
Pressure30.15 inHg
Wind25.5 mph SW
Humidity27%
Visibility—
Dew point9°
Sun, 2537° / 24°0.12
37 °
Duncan, Sunday, 25 October
Light snow. High 37°, low 24°.
Pressure30.50 inHg
Wind6.6 mph W
Humidity33%
Visibility—
Dew point6°
Mon, 2644° / 27°0
44 °
Duncan, Monday, 26 October
Partly cloudy. High 44°, low 27°.
Pressure30.18 inHg
Wind8.1 mph E
Humidity29%
Visibility—
Dew point9°
Tue, 2743° / 27°0
43 °
Duncan, Tuesday, 27 October
Partly cloudy. High 43°, low 27°.
Pressure30.09 inHg
Wind7.2 mph E
Humidity46%
Visibility—
Dew point19°
Wed, 2850° / 32°0
50 °
Duncan, Wednesday, 28 October
Clear. High 50°, low 32°.
Pressure29.94 inHg
Wind7.2 mph W
Humidity41%
Visibility—
Dew point22°
Thu, 2952° / 36°0
52 °
Duncan, Thursday, 29 October
Clear. High 52°, low 36°.
Pressure30.06 inHg
Wind9.6 mph SW
Humidity44%
Visibility—
Dew point26°
Fri, 3048° / 36°0
48 °
Duncan, Friday, 30 October
Partly cloudy. High 48°, low 36°.
Pressure29.91 inHg
Wind8.3 mph SW
Humidity42%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3148° / 28°0.03
48 °
Duncan, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.03 in
Chance of precipitation17%
Record high64° (2016)
Record low-5° (2019)
Sun, 0147° / 28°0.05
47 °
Duncan, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high47°
Average low28°
Average precipitation0.05 in
Chance of precipitation23%
Record high61° (2008)
Record low9° (1991)
Mon, 0247° / 27°0.04
47 °
Duncan, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.04 in
Chance of precipitation27%
Record high61° (2008)
Record low4° (1972)
Tue, 0346° / 26°0.04
46 °
Duncan, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low26°
Average precipitation0.04 in
Chance of precipitation15%
Record high60° (1983)
Record low-9° (1991)
Wed, 0447° / 26°0.01
47 °
Duncan, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low26°
Average precipitation0.01 in
Chance of precipitation7%
Record high60° (1983)
Record low3° (1991)
Thu, 0547° / 26°0.01
47 °
Duncan, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low26°
Average precipitation0.01 in
Chance of precipitation7%
Record high59° (1983)
Record low6° (1974)
Fri, 0647° / 27°0.02
47 °
Duncan, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation10%
Record high60° (1999)
Record low-6° (1993)
Sat, 0747° / 27°0.02
47 °
Duncan, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation15%
Record high60° (2021)
Record low6° (1993)
Sun, 0847° / 26°0.04
47 °
Duncan, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low26°
Average precipitation0.04 in
Chance of precipitation23%
Record high60° (2005)
Record low6° (1990)
Mon, 0945° / 26°0.05
45 °
Duncan, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low26°
Average precipitation0.05 in
Chance of precipitation27%
Record high59° (2016)
Record low-2° (1986)
Tue, 1045° / 25°0.02
45 °
Duncan, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.02 in
Chance of precipitation10%
Record high59° (2005)
Record low3° (1986)
Wed, 1144° / 25°0.04
44 °
Duncan, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.04 in
Chance of precipitation18%
Record high60° (1973)
Record low2° (1998)
Thu, 1244° / 24°0.04
44 °
Duncan, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low24°
Average precipitation0.04 in
Chance of precipitation18%
Record high60° (1999)
Record low2° (2018)
Fri, 1344° / 24°0.02
44 °
Duncan, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low24°
Average precipitation0.02 in
Chance of precipitation12%
Record high60° (1999)
Record low0° (2000)
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, CO 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, CO 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.