As of 02:57 CDT

Weather in Old Peru, IA

55°

Old Peru, Wednesday, 28 October, 02:57

Overcast. Feels like 54°. High 74°, low 55°.

Pressure30.06 inHg

Wind9.5 mph S

Humidity79%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

Monthly outlook for Old Peru, IA: average high 56.3°, average low 44.9°. That is 1.7° above the climate normal for October. Precipitation is expected on 9 days (about 4.8 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (73.7°), the coolest 12 November (25.7°).

56.3°/44.9°

Average high / low

+1.7°

Above normal

9 / 4

Wet days / normal

4.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
28 October – 6 November	62.1°	54.9°	+4°
7 November – 16 November	46.6°	49.9°	-1.8°
17 November – 26 November	at normal	46.4°	—

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).

Thu, 2966° / 52°

0.07

66 °

Old Peru, Thursday, 29 October

Rain. High 66°, low 52°.

Pressure30.18 inHg

Wind7.9 mph N

Humidity57%

Visibility6.2 mi

Dew point48°

Fri, 3070° / 49°

0.33

70 °

Old Peru, Friday, 30 October

Rain. High 70°, low 49°.

Pressure30.21 inHg

Wind8.7 mph SE

Humidity95%

Visibility3.4 mi

Dew point55°

Sat, 3170° / 57°

0.35

70 °

Old Peru, Saturday, 31 October

Rain. High 70°, low 57°.

Pressure30.18 inHg

Wind7.3 mph SW

Humidity78%

Visibility6.2 mi

Dew point58°

Sun, 0168° / 54°

68 °

Old Peru, Sunday, 1 November

Light rain. High 68°, low 54°.

Pressure30.15 inHg

Wind10.3 mph SE

Humidity70%

Visibility—

Dew point56°

Mon, 0261° / 54°

0.3

61 °

Old Peru, Monday, 2 November

Rain. High 61°, low 54°.

Pressure29.83 inHg

Wind15.2 mph E

Humidity93%

Visibility—

Dew point57°

Tue, 0357° / 50°

1.83

57 °

Old Peru, Tuesday, 3 November

Rain. High 57°, low 50°.

Pressure29.41 inHg

Wind22.5 mph N

Humidity97%

Visibility—

Dew point56°

Wed, 0455° / 43°

55 °

Old Peru, Wednesday, 4 November

Partly cloudy. High 55°, low 43°.

Pressure29.91 inHg

Wind6.6 mph W

Humidity63%

Visibility—

Dew point40°

Thu, 0551° / 41°

51 °

Old Peru, Thursday, 5 November

Partly cloudy. High 51°, low 41°.

Pressure29.94 inHg

Wind10.9 mph W

Humidity60%

Visibility—

Dew point37°

Fri, 0649° / 45°

0.11

49 °

Old Peru, Friday, 6 November

Light rain. High 49°, low 45°.

Pressure29.91 inHg

Wind13.2 mph NW

Humidity72%

Visibility—

Dew point40°

Sat, 0748° / 44°

0.01

48 °

Old Peru, Saturday, 7 November

Light rain. High 48°, low 44°.

Pressure30.15 inHg

Wind11.5 mph N

Humidity86%

Visibility—

Dew point41°

Sun, 0851° / 35°

51 °

Old Peru, Sunday, 8 November

Clear. High 51°, low 35°.

Pressure30.21 inHg

Wind10.9 mph S

Humidity64%

Visibility—

Dew point34°

Mon, 0959° / 47°

59 °

Old Peru, Monday, 9 November

Overcast. High 59°, low 47°.

Pressure29.80 inHg

Wind20 mph S

Humidity70%

Visibility—

Dew point46°

Tue, 1056° / 36°

0.83

56 °

Old Peru, Tuesday, 10 November

Rain. High 56°, low 36°.

Pressure29.83 inHg

Wind25.9 mph N

Humidity88%

Visibility—

Dew point39°

Wed, 1135° / 32°

0.74

35 °

Old Peru, Wednesday, 11 November

Snow. High 35°, low 32°.

Pressure30.03 inHg

Wind26.5 mph N

Humidity98%

Visibility—

Dew point33°

Thu, 1232° / 26°

32 °

Old Peru, Thursday, 12 November

Mostly clear. High 32°, low 26°.

Pressure30.36 inHg

Wind8.2 mph N

Humidity72%

Visibility—

Dew point23°

From day 17 onward the outlook is built from 60-year climate statistics

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)

Thu, 2644° / 29°

0.09

44 °

Old Peru, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high44°

Average low29°

Average precipitation0.09 in

Chance of precipitation27%

Record high70° (1990)

Record low7° (1996)

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.