As of 15:03 CDT

Weather in Peru, WI

66°Current weather

Peru, Thursday, 8 October, 15:03

Overcast. Feels like 64°. High 66°, low 44°.

Pressure30.03 inHg
Wind11.4 mph W
Humidity38%
Visibility6.2 mi
Dew point40°

Monthly outlook for Peru, WI: average high 61.8°, average low 44.2°. That is 3.3° above the climate normal for October. Precipitation is expected on 6 days (about 3.7 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 10 October (78.4°), the coolest 17 October (35.8°).

61.8°/44.2°
Average high / low
+3.3°
Above normal
6 / 5
Wet days / normal
3.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October66.4°57.2°+5.1°
18 October – 27 October54.1°53°+0.6°
28 October – 6 Novemberat normal48.6°—

October records over 66 years

84°1 October 2023All-time high
20.5°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Amherst Junction (8 mi).

Fri, 0969° / 39°0Partly cloudy
69 °Partly cloudy

Peru, Friday, 9 October

Partly cloudy. High 69°, low 39°.

Pressure30.15 inHg
Wind6.2 mph SE
Humidity46%
Visibility6.2 mi
Dew point41°
Sat, 1078° / 49°0Clear
78 °Clear

Peru, Saturday, 10 October

Clear. High 78°, low 49°.

Pressure29.97 inHg
Wind8.9 mph S
Humidity61%
Visibility6.2 mi
Dew point60°
Sun, 1175° / 56°0Clear
75 °Clear

Peru, Sunday, 11 October

Clear. High 75°, low 56°.

Pressure29.94 inHg
Wind8.2 mph S
Humidity55%
Visibility6.2 mi
Dew point55°
Mon, 1276° / 55°0.13Rain
76 °Rain

Peru, Monday, 12 October

Rain. High 76°, low 55°.

Pressure29.74 inHg
Wind6.8 mph W
Humidity71%
Visibility6.2 mi
Dew point61°
Tue, 1355° / 49°0.04Light rain
55 °Light rain

Peru, Tuesday, 13 October

Light rain. High 55°, low 49°.

Pressure30.03 inHg
Wind8.4 mph NE
Humidity72%
Visibility—
Dew point44°
Wed, 1459° / 43°1.14Heavy rain
59 °Heavy rain

Peru, Wednesday, 14 October

Heavy rain. High 59°, low 43°.

Pressure30.03 inHg
Wind14.7 mph SE
Humidity54%
Visibility—
Dew point40°
Thu, 1576° / 49°2.1Heavy rain
76 °Heavy rain

Peru, Thursday, 15 October

Heavy rain. High 76°, low 49°.

Pressure29.71 inHg
Wind18.8 mph SW
Humidity92%
Visibility—
Dew point64°
Fri, 1660° / 44°0Overcast
60 °Overcast

Peru, Friday, 16 October

Overcast. High 60°, low 44°.

Pressure30.21 inHg
Wind22.2 mph W
Humidity63%
Visibility—
Dew point37°
Sat, 1750° / 36°0Clear
50 °Clear

Peru, Saturday, 17 October

Clear. High 50°, low 36°.

Pressure30.68 inHg
Wind10.8 mph N
Humidity47%
Visibility—
Dew point28°
Sun, 1852° / 37°0Overcast
52 °Overcast

Peru, Sunday, 18 October

Overcast. High 52°, low 37°.

Pressure30.47 inHg
Wind9 mph S
Humidity55%
Visibility—
Dew point33°
Mon, 1948° / 42°0.11Light rain
48 °Light rain

Peru, Monday, 19 October

Light rain. High 48°, low 42°.

Pressure30.18 inHg
Wind8.9 mph S
Humidity82%
Visibility—
Dew point40°
Tue, 2063° / 45°0.01Light rain
63 °Light rain

Peru, Tuesday, 20 October

Light rain. High 63°, low 45°.

Pressure30.00 inHg
Wind12.7 mph SW
Humidity64%
Visibility—
Dew point47°
Wed, 2160° / 44°0Clear
60 °Clear

Peru, Wednesday, 21 October

Clear. High 60°, low 44°.

Pressure29.97 inHg
Wind14.2 mph W
Humidity54%
Visibility—
Dew point40°
Thu, 2253° / 41°0.17Rain
53 °Rain

Peru, Thursday, 22 October

Rain. High 53°, low 41°.

Pressure29.71 inHg
Wind20.7 mph W
Humidity58%
Visibility—
Dew point38°
Fri, 2348° / 36°0Light rain
48 °Light rain

Peru, Friday, 23 October

Light rain. High 48°, low 36°.

Pressure30.09 inHg
Wind18.3 mph NW
Humidity47%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2452° / 40°0.18Climate normal
52 °Climate normal

Peru, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.18 in
Chance of precipitation32%
Record high73° (1963)
Record low24° (1981)
Sun, 2552° / 39°0.07Climate normal
52 °Climate normal

Peru, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.07 in
Chance of precipitation27%
Record high73° (1989)
Record low25° (2020)
Mon, 2651° / 39°0.07Climate normal
51 °Climate normal

Peru, Monday, 26 October

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.07 in
Chance of precipitation17%
Record high73° (1989)
Record low22° (1962)
Tue, 2752° / 38°0.07Climate normal
52 °Climate normal

Peru, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation18%
Record high69° (1989)
Record low22° (2020)
Wed, 2850° / 37°0.08Climate normal
50 °Climate normal

Peru, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.08 in
Chance of precipitation23%
Record high66° (1974)
Record low26° (1969)
Thu, 2950° / 37°0.06Climate normal
50 °Climate normal

Peru, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.06 in
Chance of precipitation25%
Record high78° (2024)
Record low23° (1988)
Fri, 3052° / 38°0.09Climate normal
52 °Climate normal

Peru, Friday, 30 October

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation28%
Record high76° (2024)
Record low20° (1988)
Sat, 3150° / 37°0.1Climate normal
50 °Climate normal

Peru, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation38%
Record high64° (1971)
Record low24° (1996)
Sun, 0149° / 36°0.16Climate normal
49 °Climate normal

Peru, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.16 in
Chance of precipitation33%
Record high68° (1990)
Record low21° (2023)
Mon, 0248° / 36°0.09Climate normal
48 °Climate normal

Peru, Monday, 2 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation25%
Record high67° (1990)
Record low16° (1991)
Tue, 0347° / 35°0.06Climate normal
47 °Climate normal

Peru, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high68° (1964)
Record low14° (1991)
Wed, 0447° / 35°0.09Climate normal
47 °Climate normal

Peru, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation23%
Record high69° (2008)
Record low13° (1991)
Thu, 0547° / 35°0.1Climate normal
47 °Climate normal

Peru, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation32%
Record high66° (1975)
Record low17° (1991)
Fri, 0646° / 33°0.07Climate normal
46 °Climate normal

Peru, Friday, 6 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.07 in
Chance of precipitation28%
Record high67° (2020)
Record low9° (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 Peru, WI 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 Peru, WI 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.