Monthly outlook for Duncan, CO: average high 60.5°, average low 42.8°. That is 1.9° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 9 October (71.3°), the coolest 17 October (38.4°).
60.5°/42.8°
Average high / low
+1.9°
Above normal
3 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
61.8°
58.3°
+1.9°
19 October – 28 October
58.2°
53.7°
+2.5°
29 October – 7 November
at normal
47.4°
—
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).
Sat, 1070° / 43°0.15
70 °
Duncan, Saturday, 10 October
Light rain. High 70°, low 43°.
Pressure29.97 inHg
Wind4.1 mph SW
Humidity52%
Visibility6.2 mi
Dew point38°
Sun, 1166° / 49°0.18
66 °
Duncan, Sunday, 11 October
Light rain. High 66°, low 49°.
Pressure29.94 inHg
Wind7.3 mph SW
Humidity68%
Visibility6.2 mi
Dew point45°
Mon, 1265° / 47°0.03
65 °
Duncan, Monday, 12 October
Light rain. High 65°, low 47°.
Pressure30.00 inHg
Wind9.2 mph SW
Humidity55%
Visibility6.2 mi
Dew point39°
Tue, 1361° / 47°0.02
61 °
Duncan, Tuesday, 13 October
Light rain. High 61°, low 47°.
Pressure30.00 inHg
Wind9.5 mph SW
Humidity51%
Visibility6.2 mi
Dew point33°
Wed, 1459° / 43°0.03
59 °
Duncan, Wednesday, 14 October
Light rain. High 59°, low 43°.
Pressure29.94 inHg
Wind15.3 mph SW
Humidity47%
Visibility—
Dew point37°
Thu, 1555° / 41°0
55 °
Duncan, Thursday, 15 October
Clear. High 55°, low 41°.
Pressure30.12 inHg
Wind7.5 mph E
Humidity48%
Visibility—
Dew point30°
Fri, 1657° / 38°0
57 °
Duncan, Friday, 16 October
Clear. High 57°, low 38°.
Pressure30.39 inHg
Wind9.5 mph E
Humidity42%
Visibility—
Dew point27°
Sat, 1756° / 38°0
56 °
Duncan, Saturday, 17 October
Clear. High 56°, low 38°.
Pressure30.39 inHg
Wind7.8 mph SW
Humidity49%
Visibility—
Dew point31°
Sun, 1858° / 40°0
58 °
Duncan, Sunday, 18 October
Clear. High 58°, low 40°.
Pressure30.21 inHg
Wind5.4 mph SW
Humidity36%
Visibility—
Dew point26°
Mon, 1960° / 41°0
60 °
Duncan, Monday, 19 October
Clear. High 60°, low 41°.
Pressure30.18 inHg
Wind6.3 mph E
Humidity38%
Visibility—
Dew point29°
Tue, 2059° / 43°0
59 °
Duncan, Tuesday, 20 October
Clear. High 59°, low 43°.
Pressure30.18 inHg
Wind5.8 mph SW
Humidity36%
Visibility—
Dew point27°
Wed, 2160° / 42°0
60 °
Duncan, Wednesday, 21 October
Clear. High 60°, low 42°.
Pressure30.18 inHg
Wind6.8 mph E
Humidity36%
Visibility—
Dew point28°
Thu, 2258° / 44°0
58 °
Duncan, Thursday, 22 October
Clear. High 58°, low 44°.
Pressure30.09 inHg
Wind7 mph SW
Humidity47%
Visibility—
Dew point34°
Fri, 2357° / 43°0.07
57 °
Duncan, Friday, 23 October
Light rain. High 57°, low 43°.
Pressure29.88 inHg
Wind8.3 mph SW
Humidity46%
Visibility—
Dew point32°
Sat, 2456° / 40°0.02
56 °
Duncan, Saturday, 24 October
Light rain. High 56°, low 40°.
Pressure29.94 inHg
Wind8.1 mph SW
Humidity50%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2554° / 32°0.05
54 °
Duncan, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high54°
Average low32°
Average precipitation0.05 in
Chance of precipitation17%
Record high69° (2014)
Record low10° (2019)
Mon, 2651° / 31°0.08
51 °
Duncan, Monday, 26 October
Climate normal for this date — 60-year average.
Average high51°
Average low31°
Average precipitation0.08 in
Chance of precipitation23%
Record high66° (2014)
Record low8° (1997)
Tue, 2751° / 30°0.04
51 °
Duncan, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high51°
Average low30°
Average precipitation0.04 in
Chance of precipitation17%
Record high66° (2016)
Record low7° (2020)
Wed, 2852° / 30°0.04
52 °
Duncan, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low30°
Average precipitation0.04 in
Chance of precipitation17%
Record high65° (2016)
Record low5° (1970)
Thu, 2950° / 29°0.06
50 °
Duncan, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low29°
Average precipitation0.06 in
Chance of precipitation23%
Record high66° (2016)
Record low10° (1993)
Fri, 3048° / 28°0.05
48 °
Duncan, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low28°
Average precipitation0.05 in
Chance of precipitation22%
Record high64° (2016)
Record low-7° (1993)
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)
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.