Monthly outlook for Old Peru, IA: average high 59.8°, average low 48°. That is 2.9° above the climate normal for October. Precipitation is expected on 7 days (about 4.7 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (73.6°), the coolest 6 November (34.9°).
59.8°/48°
Average high / low
+2.9°
Above normal
7 / 4
Wet days / normal
4.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
63.1°
55.9°
+4°
5 November – 14 November
54.2°
50.6°
+1.9°
15 November – 24 November
at normal
47.5°
—
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).
Tue, 2767° / 55°0.07
67 °
Old Peru, Tuesday, 27 October
Light rain. High 67°, low 55°.
Pressure30.12 inHg
Wind5.3 mph S
Humidity77%
Visibility6.2 mi
Dew point55°
Wed, 2874° / 52°0.26
74 °
Old Peru, Wednesday, 28 October
Rain. High 74°, low 52°.
Pressure30.03 inHg
Wind12.8 mph S
Humidity67%
Visibility6.2 mi
Dew point58°
Thu, 2967° / 56°0.04
67 °
Old Peru, Thursday, 29 October
Light rain. High 67°, low 56°.
Pressure30.15 inHg
Wind6.7 mph N
Humidity81%
Visibility6.2 mi
Dew point57°
Fri, 3073° / 53°0.17
73 °
Old Peru, Friday, 30 October
Rain. High 73°, low 53°.
Pressure30.12 inHg
Wind7.5 mph SE
Humidity82%
Visibility6.2 mi
Dew point59°
Sat, 3164° / 58°0.24
64 °
Old Peru, Saturday, 31 October
Light rain. High 64°, low 58°.
Pressure30.09 inHg
Wind6.6 mph E
Humidity81%
Visibility—
Dew point57°
Sun, 0165° / 55°0.16
65 °
Old Peru, Sunday, 1 November
Rain. High 65°, low 55°.
Pressure30.00 inHg
Wind7.9 mph NE
Humidity71%
Visibility—
Dew point54°
Mon, 0256° / 53°1.87
56 °
Old Peru, Monday, 2 November
Heavy rain. High 56°, low 53°.
Pressure29.74 inHg
Wind19.7 mph E
Humidity95%
Visibility—
Dew point53°
Tue, 0354° / 44°1.83
54 °
Old Peru, Tuesday, 3 November
Rain. High 54°, low 44°.
Pressure29.47 inHg
Wind27.6 mph NE
Humidity97%
Visibility—
Dew point49°
Wed, 0444° / 40°0.02
44 °
Old Peru, Wednesday, 4 November
Light rain. High 44°, low 40°.
Pressure30.12 inHg
Wind20.5 mph NE
Humidity74%
Visibility—
Dew point35°
Thu, 0550° / 36°0
50 °
Old Peru, Thursday, 5 November
Mostly clear. High 50°, low 36°.
Pressure30.21 inHg
Wind11.2 mph N
Humidity53%
Visibility—
Dew point30°
Fri, 0652° / 35°0
52 °
Old Peru, Friday, 6 November
Overcast. High 52°, low 35°.
Pressure30.15 inHg
Wind9.7 mph S
Humidity57%
Visibility—
Dew point33°
Sat, 0755° / 43°0
55 °
Old Peru, Saturday, 7 November
Overcast. High 55°, low 43°.
Pressure29.85 inHg
Wind20.9 mph S
Humidity69%
Visibility—
Dew point42°
Sun, 0861° / 50°0
61 °
Old Peru, Sunday, 8 November
Overcast. High 61°, low 50°.
Pressure29.77 inHg
Wind19.1 mph S
Humidity67%
Visibility—
Dew point48°
Mon, 0956° / 48°0.01
56 °
Old Peru, Monday, 9 November
Light rain. High 56°, low 48°.
Pressure29.80 inHg
Wind11.1 mph NW
Humidity61%
Visibility—
Dew point42°
Tue, 1051° / 43°0
51 °
Old Peru, Tuesday, 10 November
Overcast. High 51°, low 43°.
Pressure29.80 inHg
Wind15.8 mph NW
Humidity73%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 2345° / 31°0.07
45 °
Old Peru, Monday, 23 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (1966)
Record low9° (1970)
Tue, 2445° / 29°0.06
45 °
Old Peru, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.06 in
Chance of precipitation18%
Record high66° (2017)
Record low6° (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 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.