As of 00:29 CDT

Weather in Old Peru, IA

47°Current weather

Old Peru, Monday, 19 October, 00:29

Clear. Feels like 43°. High 67°, low 43°.

Pressure30.30 inHg
Wind10 mph S
Humidity79%
Visibility6.2 mi
Dew point41°

Monthly outlook for Old Peru, IA: average high 62.2°, average low 46.6°. That is 2.3° above the climate normal for October. Precipitation is expected on 8 days (about 1.8 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 22 October (70.8°), the coolest 1 November (38°).

62.2°/46.6°
Average high / low
+2.3°
Above normal
8 / 4
Wet days / normal
1.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October64.2°59.7°+2.5°
29 October – 7 November59.1°54.5°+2.5°
8 November – 17 Novemberat normal49.6°—

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, 2068° / 42°0Clear
68 °Clear

Old Peru, Tuesday, 20 October

Clear. High 68°, low 42°.

Pressure30.30 inHg
Wind6.5 mph S
Humidity52%
Visibility6.2 mi
Dew point47°
Wed, 2171° / 50°0Clear
71 °Clear

Old Peru, Wednesday, 21 October

Clear. High 71°, low 50°.

Pressure30.27 inHg
Wind5.3 mph SW
Humidity60%
Visibility6.2 mi
Dew point52°
Thu, 2271° / 50°0Clear
71 °Clear

Old Peru, Thursday, 22 October

Clear. High 71°, low 50°.

Pressure30.30 inHg
Wind5.1 mph SE
Humidity62%
Visibility6.2 mi
Dew point53°
Fri, 2369° / 54°0Mostly clear
69 °Mostly clear

Old Peru, Friday, 23 October

Mostly clear. High 69°, low 54°.

Pressure30.21 inHg
Wind12.9 mph S
Humidity53%
Visibility—
Dew point48°
Sat, 2470° / 52°0.04Light rain
70 °Light rain

Old Peru, Saturday, 24 October

Light rain. High 70°, low 52°.

Pressure30.21 inHg
Wind13.2 mph S
Humidity52%
Visibility—
Dew point48°
Sun, 2562° / 44°0.01Light rain
62 °Light rain

Old Peru, Sunday, 25 October

Light rain. High 62°, low 44°.

Pressure30.36 inHg
Wind11.2 mph NW
Humidity34%
Visibility—
Dew point30°
Mon, 2659° / 45°0.5Rain
59 °Rain

Old Peru, Monday, 26 October

Rain. High 59°, low 45°.

Pressure30.03 inHg
Wind14.8 mph S
Humidity85%
Visibility—
Dew point51°
Tue, 2752° / 42°0.62Rain
52 °Rain

Old Peru, Tuesday, 27 October

Rain. High 52°, low 42°.

Pressure30.21 inHg
Wind12.5 mph NE
Humidity86%
Visibility—
Dew point40°
Wed, 2853° / 47°0.08Light rain
53 °Light rain

Old Peru, Wednesday, 28 October

Light rain. High 53°, low 47°.

Pressure30.12 inHg
Wind5.6 mph E
Humidity97%
Visibility—
Dew point50°
Thu, 2964° / 54°0.01Light rain
64 °Light rain

Old Peru, Thursday, 29 October

Light rain. High 64°, low 54°.

Pressure29.85 inHg
Wind21.7 mph S
Humidity89%
Visibility—
Dew point56°
Fri, 3065° / 50°0.05Light rain
65 °Light rain

Old Peru, Friday, 30 October

Light rain. High 65°, low 50°.

Pressure29.77 inHg
Wind27 mph S
Humidity39%
Visibility—
Dew point35°
Sat, 3157° / 42°0.07Light rain
57 °Light rain

Old Peru, Saturday, 31 October

Light rain. High 57°, low 42°.

Pressure30.03 inHg
Wind13 mph N
Humidity30%
Visibility—
Dew point23°
Sun, 0155° / 38°0.26Rain
55 °Rain

Old Peru, Sunday, 1 November

Rain. High 55°, low 38°.

Pressure29.85 inHg
Wind17.2 mph NW
Humidity56%
Visibility—
Dew point36°
Mon, 0260° / 41°0Clear
60 °Clear

Old Peru, Monday, 2 November

Clear. High 60°, low 41°.

Pressure29.94 inHg
Wind12.6 mph S
Humidity49%
Visibility—
Dew point37°
Tue, 0354° / 50°0.1Light rain
54 °Light rain

Old Peru, Tuesday, 3 November

Light rain. High 54°, low 50°.

Pressure29.68 inHg
Wind19.7 mph S
Humidity92%
Visibility—
Dew point50°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0453° / 38°0.1Climate normal
53 °Climate normal

Old Peru, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.1 in
Chance of precipitation22%
Record high71° (1978)
Record low9° (1991)
Thu, 0553° / 38°0.05Climate normal
53 °Climate normal

Old Peru, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation22%
Record high73° (2015)
Record low20° (1967)
Fri, 0653° / 37°0.07Climate normal
53 °Climate normal

Old Peru, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation17%
Record high71° (1980)
Record low16° (1991)
Sat, 0753° / 37°0.02Climate normal
53 °Climate normal

Old Peru, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.02 in
Chance of precipitation8%
Record high72° (1966)
Record low-2° (1991)
Sun, 0853° / 37°0.03Climate normal
53 °Climate normal

Old Peru, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.03 in
Chance of precipitation20%
Record high75° (1999)
Record low-8° (1991)
Mon, 0953° / 37°0.1Climate normal
53 °Climate normal

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°0.09Climate normal
50 °Climate normal

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°0.08Climate normal
48 °Climate normal

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°0.06Climate normal
47 °Climate normal

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°0.07Climate normal
48 °Climate normal

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°0.03Climate normal
49 °Climate normal

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°0.05Climate normal
49 °Climate normal

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°0.04Climate normal
49 °Climate normal

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°0.11Climate normal
50 °Climate normal

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)

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.