Monthly outlook for Old Peru, IA: average high 65°, average low 52.4°. That is 5.3° above the climate normal for October. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 24 October (75.8°), the coolest 4 November (39.8°).
65°/52.4°
Average high / low
+5.3°
Above normal
6 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
67.8°
56.9°
+6°
3 November – 12 November
60.5°
51.7°
+4.9°
13 November – 22 November
at normal
48.2°
—
October records over 66 years
92.1°5 October 1963All-time high
10°29 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Thayer (15 mi).
Sun, 2575° / 53°0
75 °
Old Peru, Sunday, 25 October
Overcast. High 75°, low 53°.
Pressure30.33 inHg
Wind2.6 mph SW
Humidity59%
Visibility6.2 mi
Dew point55°
Mon, 2673° / 56°0
73 °
Old Peru, Monday, 26 October
Light rain. High 73°, low 56°.
Pressure30.27 inHg
Wind5.4 mph SE
Humidity62%
Visibility6.2 mi
Dew point54°
Tue, 2769° / 58°0.07
69 °
Old Peru, Tuesday, 27 October
Rain. High 69°, low 58°.
Pressure30.12 inHg
Wind10.7 mph S
Humidity60%
Visibility6.2 mi
Dew point51°
Wed, 2873° / 58°0.03
73 °
Old Peru, Wednesday, 28 October
Light rain. High 73°, low 58°.
Pressure30.06 inHg
Wind13.9 mph S
Humidity57%
Visibility—
Dew point53°
Thu, 2967° / 58°0.17
67 °
Old Peru, Thursday, 29 October
Light rain. High 67°, low 58°.
Pressure30.15 inHg
Wind12.8 mph SW
Humidity81%
Visibility—
Dew point58°
Fri, 3066° / 56°0.33
66 °
Old Peru, Friday, 30 October
Rain. High 66°, low 56°.
Pressure30.15 inHg
Wind10.9 mph E
Humidity87%
Visibility—
Dew point59°
Sat, 3161° / 56°0.46
61 °
Old Peru, Saturday, 31 October
Rain. High 61°, low 56°.
Pressure30.06 inHg
Wind20.2 mph S
Humidity76%
Visibility—
Dew point53°
Sun, 0162° / 51°0.29
62 °
Old Peru, Sunday, 1 November
Light rain. High 62°, low 51°.
Pressure29.68 inHg
Wind19.7 mph W
Humidity94%
Visibility—
Dew point60°
Mon, 0256° / 45°0.61
56 °
Old Peru, Monday, 2 November
Heavy rain. High 56°, low 45°.
Pressure30.09 inHg
Wind29.3 mph N
Humidity54%
Visibility—
Dew point38°
Tue, 0356° / 41°0
56 °
Old Peru, Tuesday, 3 November
Clear. High 56°, low 41°.
Pressure30.15 inHg
Wind9.3 mph NW
Humidity47%
Visibility—
Dew point33°
Wed, 0452° / 40°0
52 °
Old Peru, Wednesday, 4 November
Overcast. High 52°, low 40°.
Pressure30.15 inHg
Wind11.1 mph SE
Humidity58%
Visibility—
Dew point34°
Thu, 0562° / 47°0
62 °
Old Peru, Thursday, 5 November
Overcast. High 62°, low 47°.
Pressure29.94 inHg
Wind20.5 mph SW
Humidity64%
Visibility—
Dew point46°
Fri, 0664° / 58°0.01
64 °
Old Peru, Friday, 6 November
Light rain. High 64°, low 58°.
Pressure29.91 inHg
Wind18.7 mph SW
Humidity63%
Visibility—
Dew point51°
Sat, 0768° / 57°0.03
68 °
Old Peru, Saturday, 7 November
Light rain. High 68°, low 57°.
Pressure29.80 inHg
Wind19.5 mph S
Humidity76%
Visibility—
Dew point60°
Sun, 0860° / 47°0
60 °
Old Peru, Sunday, 8 November
Clear. High 60°, low 47°.
Pressure30.21 inHg
Wind14.4 mph NW
Humidity34%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0953° / 37°0.1
53 °
Old Peru, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.1 in
Chance of precipitation32%
Record high72° (1999)
Record low14° (1991)
Tue, 1050° / 34°0.09
50 °
Old Peru, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.09 in
Chance of precipitation22%
Record high74° (2012)
Record low12° (2018)
Wed, 1148° / 32°0.08
48 °
Old Peru, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.08 in
Chance of precipitation22%
Record high73° (1964)
Record low10° (1986)
Thu, 1247° / 32°0.06
47 °
Old Peru, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high68° (1999)
Record low3° (2019)
Fri, 1348° / 32°0.07
48 °
Old Peru, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation20%
Record high75° (1999)
Record low5° (1986)
Sat, 1449° / 34°0.03
49 °
Old Peru, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.03 in
Chance of precipitation23%
Record high72° (2025)
Record low13° (2014)
Sun, 1549° / 34°0.05
49 °
Old Peru, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.05 in
Chance of precipitation18%
Record high70° (2001)
Record low0° (1972)
Mon, 1649° / 33°0.04
49 °
Old Peru, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.04 in
Chance of precipitation12%
Record high70° (2001)
Record low15° (1997)
Tue, 1750° / 34°0.11
50 °
Old Peru, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.11 in
Chance of precipitation25%
Record high72° (2016)
Record low7° (2005)
Wed, 1849° / 34°0.05
49 °
Old Peru, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.05 in
Chance of precipitation25%
Record high71° (1999)
Record low8° (1961)
Thu, 1949° / 33°0.07
49 °
Old Peru, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.07 in
Chance of precipitation23%
Record high68° (2007)
Record low16° (1961)
Fri, 2047° / 32°0.07
47 °
Old Peru, Friday, 20 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.07 in
Chance of precipitation23%
Record high65° (1990)
Record low13° (1985)
Sat, 2146° / 29°0.03
46 °
Old Peru, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.03 in
Chance of precipitation15%
Record high71° (1990)
Record low8° (1964)
Sun, 2246° / 30°0.04
46 °
Old Peru, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (1966)
Record low9° (2015)
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 Old Peru, 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 Old Peru, 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.