As of 00:12 CDT

Weather in Peru, WI

47°Current weather

Peru, Friday, 9 October, 00:12

Overcast. Feels like 45°. High 70°, low 39°.

Pressure30.09 inHg
Wind3.8 mph W
Humidity81%
Visibility6.2 mi
Dew point41°

Monthly outlook for Peru, WI: average high 60.3°, average low 43.4°. That is 2.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 10 October (78.9°), the coolest 18 October (32.2°).

60.3°/43.4°
Average high / low
+2.7°
Above normal
3 / 5
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October62.8°56.7°+3.4°
19 October – 28 October56.2°52.6°+2°
29 October – 7 Novemberat normal48.1°—

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).

Sat, 1079° / 49°0Clear
79 °Clear

Peru, Saturday, 10 October

Clear. High 79°, low 49°.

Pressure29.97 inHg
Wind10 mph S
Humidity57%
Visibility6.2 mi
Dew point57°
Sun, 1174° / 55°0Clear
74 °Clear

Peru, Sunday, 11 October

Clear. High 74°, low 55°.

Pressure29.91 inHg
Wind7.4 mph S
Humidity57%
Visibility6.2 mi
Dew point55°
Mon, 1278° / 59°0.38Rain
78 °Rain

Peru, Monday, 12 October

Rain. High 78°, low 59°.

Pressure29.71 inHg
Wind6 mph SW
Humidity64%
Visibility6.2 mi
Dew point60°
Tue, 1356° / 52°0.09Light rain
56 °Light rain

Peru, Tuesday, 13 October

Light rain. High 56°, low 52°.

Pressure29.94 inHg
Wind10.8 mph NE
Humidity75%
Visibility—
Dew point47°
Wed, 1458° / 49°0Overcast
58 °Overcast

Peru, Wednesday, 14 October

Overcast. High 58°, low 49°.

Pressure30.15 inHg
Wind9.5 mph E
Humidity57%
Visibility—
Dew point40°
Thu, 1560° / 47°0.31Rain
60 °Rain

Peru, Thursday, 15 October

Rain. High 60°, low 47°.

Pressure29.77 inHg
Wind16.1 mph SW
Humidity97%
Visibility—
Dew point51°
Fri, 1653° / 44°0Overcast
53 °Overcast

Peru, Friday, 16 October

Overcast. High 53°, low 44°.

Pressure30.06 inHg
Wind18.6 mph NW
Humidity62%
Visibility—
Dew point36°
Sat, 1748° / 36°0Clear
48 °Clear

Peru, Saturday, 17 October

Clear. High 48°, low 36°.

Pressure30.47 inHg
Wind16.1 mph NW
Humidity38%
Visibility—
Dew point21°
Sun, 1852° / 32°0Overcast
52 °Overcast

Peru, Sunday, 18 October

Overcast. High 52°, low 32°.

Pressure30.42 inHg
Wind13.6 mph SW
Humidity37%
Visibility—
Dew point22°
Mon, 1954° / 36°0Overcast
54 °Overcast

Peru, Monday, 19 October

Overcast. High 54°, low 36°.

Pressure30.53 inHg
Wind8.6 mph NE
Humidity42%
Visibility—
Dew point29°
Tue, 2052° / 41°0.02Light rain
52 °Light rain

Peru, Tuesday, 20 October

Light rain. High 52°, low 41°.

Pressure30.27 inHg
Wind11.1 mph S
Humidity71%
Visibility—
Dew point40°
Wed, 2163° / 41°0Partly cloudy
63 °Partly cloudy

Peru, Wednesday, 21 October

Partly cloudy. High 63°, low 41°.

Pressure30.06 inHg
Wind10.2 mph W
Humidity62%
Visibility—
Dew point45°
Thu, 2257° / 39°0Overcast
57 °Overcast

Peru, Thursday, 22 October

Overcast. High 57°, low 39°.

Pressure30.24 inHg
Wind8.4 mph NW
Humidity39%
Visibility—
Dew point30°
Fri, 2352° / 35°0Clear
52 °Clear

Peru, Friday, 23 October

Clear. High 52°, low 35°.

Pressure30.36 inHg
Wind7.4 mph S
Humidity48%
Visibility—
Dew point30°
Sat, 2459° / 41°0Overcast
59 °Overcast

Peru, Saturday, 24 October

Overcast. High 59°, low 41°.

Pressure29.97 inHg
Wind19.6 mph SW
Humidity46%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 0745° / 33°0.04Climate normal
45 °Climate normal

Peru, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.04 in
Chance of precipitation18%
Record high68° (2020)
Record low-3° (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.