Monthly outlook for Clayton, IA: average high 51.6°, average low 42.2°. That is 1.9° above the climate normal for October. Precipitation is expected on 7 days (about 2.5 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 1 November (65.8°), the coolest 11 November (30.1°).
51.6°/42.2°
Average high / low
+1.9°
Above normal
7 / 4
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
55.6°
50.3°
+3°
9 November – 18 November
44.9°
44.7°
+0.1°
19 November – 28 November
at normal
39.9°
—
October records over 66 years
86.4°3 October 2025All-time high
20.7°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Bloomington (11 mi).
Sat, 3160° / 49°0.72
60 °
Clayton, Saturday, 31 October
Heavy rain. High 60°, low 49°.
Pressure30.30 inHg
Wind5 mph SE
Humidity91%
Visibility5.3 mi
Dew point52°
Sun, 0166° / 48°0
66 °
Clayton, Sunday, 1 November
Partly cloudy. High 66°, low 48°.
Pressure30.27 inHg
Wind7 mph SE
Humidity71%
Visibility6.2 mi
Dew point51°
Mon, 0259° / 54°0.28
59 °
Clayton, Monday, 2 November
Rain. High 59°, low 54°.
Pressure30.00 inHg
Wind10.6 mph SE
Humidity81%
Visibility6.2 mi
Dew point53°
Tue, 0365° / 57°0.43
65 °
Clayton, Tuesday, 3 November
Rain. High 65°, low 57°.
Pressure29.74 inHg
Wind13.2 mph S
Humidity89%
Visibility6.2 mi
Dew point61°
Wed, 0456° / 50°0.05
56 °
Clayton, Wednesday, 4 November
Light rain. High 56°, low 50°.
Pressure29.71 inHg
Wind13.5 mph N
Humidity79%
Visibility—
Dew point49°
Thu, 0554° / 45°0
54 °
Clayton, Thursday, 5 November
Overcast. High 54°, low 45°.
Pressure29.83 inHg
Wind11.8 mph N
Humidity72%
Visibility—
Dew point44°
Fri, 0649° / 46°0
49 °
Clayton, Friday, 6 November
Overcast. High 49°, low 46°.
Pressure30.00 inHg
Wind8.3 mph NE
Humidity71%
Visibility—
Dew point39°
Sat, 0749° / 37°0
49 °
Clayton, Saturday, 7 November
Partly cloudy. High 49°, low 37°.
Pressure30.18 inHg
Wind7.9 mph NE
Humidity60%
Visibility—
Dew point35°
Sun, 0844° / 32°0
44 °
Clayton, Sunday, 8 November
Overcast. High 44°, low 32°.
Pressure30.39 inHg
Wind11.1 mph NE
Humidity64%
Visibility—
Dew point30°
Mon, 0942° / 37°0.2
42 °
Clayton, Monday, 9 November
Light rain. High 42°, low 37°.
Pressure30.21 inHg
Wind9.7 mph NE
Humidity84%
Visibility—
Dew point36°
Tue, 1045° / 37°0.03
45 °
Clayton, Tuesday, 10 November
Light rain. High 45°, low 37°.
Pressure30.06 inHg
Wind12.2 mph NE
Humidity70%
Visibility—
Dew point34°
Wed, 1146° / 30°0
46 °
Clayton, Wednesday, 11 November
Clear. High 46°, low 30°.
Pressure30.06 inHg
Wind5.3 mph N
Humidity52%
Visibility—
Dew point27°
Thu, 1248° / 32°0
48 °
Clayton, Thursday, 12 November
Clear. High 48°, low 32°.
Pressure29.85 inHg
Wind9.6 mph S
Humidity56%
Visibility—
Dew point30°
Fri, 1342° / 37°0.38
42 °
Clayton, Friday, 13 November
Rain. High 42°, low 37°.
Pressure29.65 inHg
Wind14.8 mph E
Humidity92%
Visibility—
Dew point38°
Sat, 1446° / 44°0.42
46 °
Clayton, Saturday, 14 November
Rain. High 46°, low 44°.
Pressure29.62 inHg
Wind13.4 mph N
Humidity94%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1544° / 32°0.06
44 °
Clayton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high66° (2001)
Record low17° (2014)
Mon, 1645° / 31°0.06
45 °
Clayton, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.06 in
Chance of precipitation25%
Record high61° (1988)
Record low16° (2014)
Tue, 1745° / 32°0.09
45 °
Clayton, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.09 in
Chance of precipitation22%
Record high69° (2016)
Record low11° (2005)
Wed, 1844° / 31°0.07
44 °
Clayton, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.07 in
Chance of precipitation30%
Record high66° (1999)
Record low8° (2014)
Thu, 1944° / 31°0.07
44 °
Clayton, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.07 in
Chance of precipitation25%
Record high62° (2020)
Record low10° (1986)
Fri, 2042° / 30°0.09
42 °
Clayton, Friday, 20 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.09 in
Chance of precipitation32%
Record high62° (2003)
Record low12° (2022)
Sat, 2141° / 28°0.07
41 °
Clayton, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.07 in
Chance of precipitation23%
Record high66° (1990)
Record low5° (1964)
Sun, 2241° / 28°0.03
41 °
Clayton, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (2012)
Record low1° (2015)
Mon, 2341° / 29°0.11
41 °
Clayton, Monday, 23 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.11 in
Chance of precipitation30%
Record high60° (1966)
Record low8° (1970)
Tue, 2440° / 27°0.06
40 °
Clayton, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.06 in
Chance of precipitation25%
Record high60° (2017)
Record low4° (1985)
Wed, 2539° / 28°0.06
39 °
Clayton, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.06 in
Chance of precipitation23%
Record high55° (1998)
Record low4° (1977)
Thu, 2639° / 26°0.08
39 °
Clayton, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.08 in
Chance of precipitation37%
Record high62° (1990)
Record low-7° (1977)
Fri, 2737° / 26°0.11
37 °
Clayton, Friday, 27 November
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.11 in
Chance of precipitation38%
Record high63° (1990)
Record low-2° (1996)
Sat, 2836° / 24°0.08
36 °
Clayton, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.08 in
Chance of precipitation22%
Record high62° (1998)
Record low3° (1977)
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 Clayton, 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 Clayton, 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.