Monthly outlook for Duncombe, IA: average high 65.4°, average low 49.5°. That is 3° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 12 October (84.1°), the coolest 17 October (35.2°).
65.4°/49.5°
Average high / low
+3°
Above normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
68.5°
61°
+4.2°
19 October – 28 October
60.2°
57.4°
+1.6°
29 October – 7 November
at normal
52.3°
—
October records over 66 years
87.8°1 October 2023All-time high
16.5°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Vincent (9 mi).
Sat, 1082° / 62°0
82 °
Duncombe, Saturday, 10 October
Clear. High 82°, low 62°.
Pressure29.88 inHg
Wind13.8 mph S
Humidity52%
Visibility6.2 mi
Dew point59°
Sun, 1181° / 59°0
81 °
Duncombe, Sunday, 11 October
Clear. High 81°, low 59°.
Pressure29.85 inHg
Wind10.6 mph S
Humidity56%
Visibility6.2 mi
Dew point58°
Mon, 1284° / 66°0
84 °
Duncombe, Monday, 12 October
Mostly clear. High 84°, low 66°.
Pressure29.71 inHg
Wind7.4 mph S
Humidity56%
Visibility6.2 mi
Dew point62°
Tue, 1364° / 56°0
64 °
Duncombe, Tuesday, 13 October
Overcast. High 64°, low 56°.
Pressure29.97 inHg
Wind11.7 mph N
Humidity65%
Visibility—
Dew point51°
Wed, 1465° / 51°0.01
65 °
Duncombe, Wednesday, 14 October
Light rain. High 65°, low 51°.
Pressure30.00 inHg
Wind15.3 mph E
Humidity53%
Visibility—
Dew point46°
Thu, 1572° / 56°0.2
72 °
Duncombe, Thursday, 15 October
Light rain. High 72°, low 56°.
Pressure29.62 inHg
Wind22.1 mph SW
Humidity47%
Visibility—
Dew point49°
Fri, 1653° / 44°0
53 °
Duncombe, Friday, 16 October
Overcast. High 53°, low 44°.
Pressure30.27 inHg
Wind19 mph NW
Humidity57%
Visibility—
Dew point36°
Sat, 1749° / 35°0
49 °
Duncombe, Saturday, 17 October
Clear. High 49°, low 35°.
Pressure30.59 inHg
Wind12.4 mph NW
Humidity40%
Visibility—
Dew point22°
Sun, 1855° / 35°0
55 °
Duncombe, Sunday, 18 October
Overcast. High 55°, low 35°.
Pressure30.45 inHg
Wind12.2 mph SW
Humidity40%
Visibility—
Dew point26°
Mon, 1954° / 43°0
54 °
Duncombe, Monday, 19 October
Overcast. High 54°, low 43°.
Pressure30.47 inHg
Wind6 mph SE
Humidity48%
Visibility—
Dew point32°
Tue, 2055° / 46°0.05
55 °
Duncombe, Tuesday, 20 October
Light rain. High 55°, low 46°.
Pressure30.21 inHg
Wind13.9 mph SW
Humidity63%
Visibility—
Dew point39°
Wed, 2167° / 46°0
67 °
Duncombe, Wednesday, 21 October
Clear. High 67°, low 46°.
Pressure30.12 inHg
Wind12 mph S
Humidity45%
Visibility—
Dew point40°
Thu, 2261° / 46°0
61 °
Duncombe, Thursday, 22 October
Overcast. High 61°, low 46°.
Pressure30.27 inHg
Wind9.5 mph N
Humidity32%
Visibility—
Dew point29°
Fri, 2360° / 42°0
60 °
Duncombe, Friday, 23 October
Clear. High 60°, low 42°.
Pressure30.33 inHg
Wind11.4 mph S
Humidity39%
Visibility—
Dew point31°
Sat, 2464° / 48°0
64 °
Duncombe, Saturday, 24 October
Clear. High 64°, low 48°.
Pressure30.03 inHg
Wind16.8 mph SW
Humidity52%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2556° / 40°0.05
56 °
Duncombe, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.05 in
Chance of precipitation20%
Record high77° (1989)
Record low26° (1976)
Mon, 2656° / 40°0.05
56 °
Duncombe, Monday, 26 October
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.05 in
Chance of precipitation23%
Record high75° (1989)
Record low21° (2020)
Tue, 2756° / 40°0.08
56 °
Duncombe, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.08 in
Chance of precipitation28%
Record high74° (1999)
Record low17° (2020)
Wed, 2854° / 39°0.06
54 °
Duncombe, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.06 in
Chance of precipitation22%
Record high77° (2016)
Record low20° (1967)
Thu, 2955° / 38°0.08
55 °
Duncombe, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.08 in
Chance of precipitation23%
Record high80° (2024)
Record low22° (1980)
Fri, 3055° / 40°0.09
55 °
Duncombe, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (2024)
Record low22° (1991)
Sat, 3153° / 38°0.09
53 °
Duncombe, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation25%
Record high75° (1968)
Record low19° (1993)
Sun, 0153° / 37°0.13
53 °
Duncombe, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.13 in
Chance of precipitation30%
Record high74° (2022)
Record low21° (2002)
Mon, 0251° / 37°0.05
51 °
Duncombe, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.05 in
Chance of precipitation27%
Record high74° (2022)
Record low13° (1991)
Tue, 0352° / 36°0.07
52 °
Duncombe, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (1978)
Record low9° (1991)
Wed, 0451° / 35°0.06
51 °
Duncombe, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (2008)
Record low-1° (1991)
Thu, 0551° / 35°0.05
51 °
Duncombe, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.05 in
Chance of precipitation22%
Record high70° (2015)
Record low19° (1967)
Fri, 0651° / 35°0.06
51 °
Duncombe, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.06 in
Chance of precipitation18%
Record high72° (1980)
Record low7° (1991)
Sat, 0751° / 34°0.02
51 °
Duncombe, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.02 in
Chance of precipitation8%
Record high72° (2001)
Record low-8° (1991)
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 Duncombe, IA 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 Duncombe, IA 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.