Monthly outlook for Chapin, IA: average high 61.2°, average low 45.2°. That is 1.6° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 12 October (85.2°), the coolest 17 October (27°).
61.2°/45.2°
Average high / low
+1.6°
Above normal
2 / 4
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
62.2°
59.4°
+1.6°
21 October – 30 October
59.5°
55.6°
+2.2°
31 October – 9 November
at normal
50.2°
—
October records over 66 years
86.7°1 October 2023All-time high
18.3°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Dougherty (11 mi).
Mon, 1285° / 64°0
85 °
Chapin, Monday, 12 October
Partly cloudy. High 85°, low 64°.
Pressure29.68 inHg
Wind12.1 mph S
Humidity57%
Visibility6.2 mi
Dew point63°
Tue, 1367° / 56°0
67 °
Chapin, Tuesday, 13 October
Partly cloudy. High 67°, low 56°.
Pressure29.91 inHg
Wind8 mph N
Humidity65%
Visibility6.2 mi
Dew point52°
Wed, 1463° / 50°0
63 °
Chapin, Wednesday, 14 October
Overcast. High 63°, low 50°.
Pressure30.18 inHg
Wind9 mph NE
Humidity59%
Visibility6.2 mi
Dew point46°
Thu, 1555° / 53°0.84
55 °
Chapin, Thursday, 15 October
Heavy rain. High 55°, low 53°.
Pressure30.18 inHg
Wind9.9 mph E
Humidity91%
Visibility—
Dew point52°
Fri, 1656° / 40°0
56 °
Chapin, Friday, 16 October
Clear. High 56°, low 40°.
Pressure30.59 inHg
Wind16.7 mph N
Humidity50%
Visibility—
Dew point35°
Sat, 1741° / 27°0
41 °
Chapin, Saturday, 17 October
Clear. High 41°, low 27°.
Pressure30.59 inHg
Wind17.9 mph N
Humidity36%
Visibility—
Dew point12°
Sun, 1848° / 28°0
48 °
Chapin, Sunday, 18 October
Overcast. High 48°, low 28°.
Pressure30.39 inHg
Wind17.3 mph S
Humidity34%
Visibility—
Dew point16°
Mon, 1961° / 38°0
61 °
Chapin, Monday, 19 October
Clear. High 61°, low 38°.
Pressure30.09 inHg
Wind14.7 mph S
Humidity43%
Visibility—
Dew point32°
Tue, 2064° / 43°0
64 °
Chapin, Tuesday, 20 October
Clear. High 64°, low 43°.
Pressure30.00 inHg
Wind15.5 mph S
Humidity42%
Visibility—
Dew point36°
Wed, 2168° / 49°0
68 °
Chapin, Wednesday, 21 October
Clear. High 68°, low 49°.
Pressure30.03 inHg
Wind13.4 mph S
Humidity52%
Visibility—
Dew point45°
Thu, 2262° / 47°0
62 °
Chapin, Thursday, 22 October
Mostly clear. High 62°, low 47°.
Pressure30.39 inHg
Wind10.2 mph N
Humidity40%
Visibility—
Dew point33°
Fri, 2371° / 48°0.21
71 °
Chapin, Friday, 23 October
Light rain. High 71°, low 48°.
Pressure30.00 inHg
Wind24.6 mph S
Humidity71%
Visibility—
Dew point52°
Sat, 2453° / 43°0
53 °
Chapin, Saturday, 24 October
Overcast. High 53°, low 43°.
Pressure30.24 inHg
Wind21.5 mph NW
Humidity64%
Visibility—
Dew point35°
Sun, 2553° / 37°0
53 °
Chapin, Sunday, 25 October
Partly cloudy. High 53°, low 37°.
Pressure30.39 inHg
Wind11.9 mph W
Humidity48%
Visibility—
Dew point29°
Mon, 2652° / 40°0
52 °
Chapin, Monday, 26 October
Mostly clear. High 52°, low 40°.
Pressure30.21 inHg
Wind13 mph N
Humidity53%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2755° / 39°0.07
55 °
Chapin, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (1966)
Record low18° (2020)
Wed, 2853° / 38°0.07
53 °
Chapin, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation23%
Record high75° (2016)
Record low20° (1967)
Thu, 2955° / 38°0.08
55 °
Chapin, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.08 in
Chance of precipitation27%
Record high80° (2024)
Record low22° (1988)
Fri, 3055° / 39°0.08
55 °
Chapin, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.08 in
Chance of precipitation32%
Record high74° (2024)
Record low20° (1988)
Sat, 3153° / 38°0.1
53 °
Chapin, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high73° (1968)
Record low21° (1993)
Sun, 0152° / 37°0.12
52 °
Chapin, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.12 in
Chance of precipitation27%
Record high72° (2000)
Record low22° (2002)
Mon, 0251° / 36°0.05
51 °
Chapin, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.05 in
Chance of precipitation25%
Record high72° (2022)
Record low15° (1991)
Tue, 0351° / 36°0.06
51 °
Chapin, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (2008)
Record low12° (1991)
Wed, 0450° / 35°0.07
50 °
Chapin, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation22%
Record high71° (2008)
Record low7° (1991)
Thu, 0550° / 34°0.07
50 °
Chapin, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.07 in
Chance of precipitation22%
Record high70° (2015)
Record low18° (1991)
Fri, 0650° / 35°0.07
50 °
Chapin, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.07 in
Chance of precipitation23%
Record high70° (2020)
Record low7° (1991)
Sat, 0750° / 33°0.02
50 °
Chapin, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation8%
Record high72° (2001)
Record low-8° (1991)
Sun, 0849° / 33°0.03
49 °
Chapin, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.03 in
Chance of precipitation18%
Record high76° (1999)
Record low0° (1991)
Mon, 0948° / 33°0.13
48 °
Chapin, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.13 in
Chance of precipitation25%
Record high71° (1999)
Record low16° (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 Chapin, 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 Chapin, 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.