Monthly outlook for Old Peru, IA: average high 60.3°, average low 48.1°. That is 3.5° 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 28 October (75.1°), the coolest 6 November (36.8°).
60.3°/48.1°
Average high / low
+3.5°
Above normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
63.4°
55.3°
+4.5°
6 November – 15 November
55°
50.3°
+2.7°
16 November – 25 November
at normal
47°
—
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).
Wed, 2875° / 55°0.01
75 °
Old Peru, Wednesday, 28 October
Light rain. High 75°, low 55°.
Pressure30.03 inHg
Wind13 mph S
Humidity63%
Visibility6.2 mi
Dew point57°
Thu, 2967° / 53°0
67 °
Old Peru, Thursday, 29 October
Clear. High 67°, low 53°.
Pressure30.18 inHg
Wind5.6 mph N
Humidity65%
Visibility6.2 mi
Dew point51°
Fri, 3070° / 50°0.21
70 °
Old Peru, Friday, 30 October
Light rain. High 70°, low 50°.
Pressure30.18 inHg
Wind6.6 mph E
Humidity90%
Visibility4.5 mi
Dew point56°
Sat, 3168° / 58°0
68 °
Old Peru, Saturday, 31 October
Overcast. High 68°, low 58°.
Pressure30.18 inHg
Wind7.3 mph SW
Humidity67%
Visibility—
Dew point55°
Sun, 0167° / 57°0.01
67 °
Old Peru, Sunday, 1 November
Light rain. High 67°, low 57°.
Pressure30.12 inHg
Wind9.7 mph E
Humidity71%
Visibility—
Dew point55°
Mon, 0257° / 48°0
57 °
Old Peru, Monday, 2 November
Overcast. High 57°, low 48°.
Pressure30.00 inHg
Wind14.7 mph NE
Humidity73%
Visibility—
Dew point48°
Tue, 0353° / 49°0.01
53 °
Old Peru, Tuesday, 3 November
Light rain. High 53°, low 49°.
Pressure30.24 inHg
Wind15.2 mph NE
Humidity79%
Visibility—
Dew point45°
Wed, 0452° / 43°0
52 °
Old Peru, Wednesday, 4 November
Overcast. High 52°, low 43°.
Pressure30.09 inHg
Wind14.2 mph NE
Humidity71%
Visibility—
Dew point41°
Thu, 0557° / 39°0
57 °
Old Peru, Thursday, 5 November
Clear. High 57°, low 39°.
Pressure30.00 inHg
Wind10.8 mph N
Humidity51%
Visibility—
Dew point35°
Fri, 0649° / 37°0
49 °
Old Peru, Friday, 6 November
Mostly clear. High 49°, low 37°.
Pressure30.27 inHg
Wind9.6 mph NE
Humidity50%
Visibility—
Dew point28°
Sat, 0749° / 37°0
49 °
Old Peru, Saturday, 7 November
Overcast. High 49°, low 37°.
Pressure30.09 inHg
Wind14.3 mph S
Humidity54%
Visibility—
Dew point31°
Sun, 0857° / 45°0
57 °
Old Peru, Sunday, 8 November
Light rain. High 57°, low 45°.
Pressure29.97 inHg
Wind10.5 mph S
Humidity73%
Visibility—
Dew point44°
Mon, 0960° / 50°0.05
60 °
Old Peru, Monday, 9 November
Light rain. High 60°, low 50°.
Pressure29.97 inHg
Wind11.1 mph SW
Humidity78%
Visibility—
Dew point49°
Tue, 1059° / 49°0
59 °
Old Peru, Tuesday, 10 November
Overcast. High 59°, low 49°.
Pressure29.88 inHg
Wind8.9 mph SW
Humidity84%
Visibility—
Dew point51°
Wed, 1156° / 42°0
56 °
Old Peru, Wednesday, 11 November
Overcast. High 56°, low 42°.
Pressure29.94 inHg
Wind13.1 mph NW
Humidity57%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 2544° / 29°0.06
44 °
Old Peru, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.06 in
Chance of precipitation17%
Record high61° (1960)
Record low-5° (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.