As of 15:51 EDT

Weather in Peru, MA

57°

Peru, Friday, 9 October, 15:51

Mostly clear. Feels like 55°. High 58°, low 39°.

Pressure30.09 inHg

Wind7 mph W

Humidity49%

Visibility6.2 mi

Dew point38°

See detailed hourly forecast

Monthly outlook for Peru, MA: average high 54.4°, average low 37.6°. That is 1° below the climate normal for October. Precipitation is expected on 6 days (about 5.3 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 13 October (63.3°), the coolest 19 October (26.3°).

54.4°/37.6°

Average high / low

−1°

Below normal

6 / 5

Wet days / normal

5.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	55.8°	57.3°	-0.8°
19 October – 28 October	52.1°	53.9°	-1°
29 October – 7 November	at normal	50.5°	—

October records over 66 years

81.7°6 October 2007All-time high

15.6°31 October 2011All-time low

Climate normals and records are computed from the nearest reference point — Chester (11 mi).

Sat, 1058° / 36°

58 °

Peru, Saturday, 10 October

Overcast. High 58°, low 36°.

Pressure30.47 inHg

Wind5.2 mph NW

Humidity48%

Visibility6.2 mi

Dew point35°

Sun, 1154° / 39°

0.24

54 °

Peru, Sunday, 11 October

Rain. High 54°, low 39°.

Pressure30.33 inHg

Wind8.3 mph SE

Humidity68%

Visibility6.2 mi

Dew point44°

Mon, 1263° / 49°

0.03

63 °

Peru, Monday, 12 October

Light rain. High 63°, low 49°.

Pressure29.74 inHg

Wind8.5 mph N

Humidity72%

Visibility6.2 mi

Dew point53°

Tue, 1363° / 50°

0.58

63 °

Peru, Tuesday, 13 October

Rain. High 63°, low 50°.

Pressure29.74 inHg

Wind4.9 mph SW

Humidity88%

Visibility6.2 mi

Dew point59°

Wed, 1455° / 39°

55 °

Peru, Wednesday, 14 October

Partly cloudy. High 55°, low 39°.

Pressure29.94 inHg

Wind10.7 mph NW

Humidity74%

Visibility—

Dew point42°

Thu, 1551° / 32°

51 °

Peru, Thursday, 15 October

Clear. High 51°, low 32°.

Pressure30.27 inHg

Wind5.7 mph NW

Humidity50%

Visibility—

Dew point26°

Fri, 1658° / 37°

0.52

58 °

Peru, Friday, 16 October

Rain. High 58°, low 37°.

Pressure30.03 inHg

Wind16.2 mph S

Humidity97%

Visibility—

Dew point43°

Sat, 1758° / 36°

0.29

58 °

Peru, Saturday, 17 October

Rain. High 58°, low 36°.

Pressure29.80 inHg

Wind14.5 mph W

Humidity68%

Visibility—

Dew point36°

Sun, 1840° / 28°

40 °

Peru, Sunday, 18 October

Partly cloudy. High 40°, low 28°.

Pressure30.21 inHg

Wind14.4 mph NW

Humidity57%

Visibility—

Dew point20°

Mon, 1945° / 26°

45 °

Peru, Monday, 19 October

Partly cloudy. High 45°, low 26°.

Pressure30.50 inHg

Wind4.5 mph W

Humidity38%

Visibility—

Dew point16°

Tue, 2050° / 30°

50 °

Peru, Tuesday, 20 October

Clear. High 50°, low 30°.

Pressure30.53 inHg

Wind4.8 mph W

Humidity46%

Visibility—

Dew point24°

Wed, 2154° / 34°

54 °

Peru, Wednesday, 21 October

Clear. High 54°, low 34°.

Pressure30.56 inHg

Wind4.3 mph S

Humidity55%

Visibility—

Dew point33°

Thu, 2254° / 37°

54 °

Peru, Thursday, 22 October

Overcast. High 54°, low 37°.

Pressure30.42 inHg

Wind7.1 mph SW

Humidity66%

Visibility—

Dew point37°

Fri, 2354° / 39°

0.2

54 °

Peru, Friday, 23 October

Light rain. High 54°, low 39°.

Pressure30.24 inHg

Wind8.9 mph SE

Humidity99%

Visibility—

Dew point44°

Sat, 2455° / 52°

3.41

55 °

Peru, Saturday, 24 October

Heavy rain. High 55°, low 52°.

Pressure29.88 inHg

Wind19.1 mph E

Humidity98%

Visibility—

Dew point54°

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

Sun, 2553° / 40°

0.16

53 °

Peru, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high53°

Average low40°

Average precipitation0.16 in

Chance of precipitation37%

Record high75° (1963)

Record low27° (1981)

Mon, 2653° / 39°

0.13

53 °

Peru, Monday, 26 October

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.13 in

Chance of precipitation35%

Record high75° (1963)

Record low26° (2018)

Tue, 2752° / 38°

0.15

52 °

Peru, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.15 in

Chance of precipitation23%

Record high76° (1963)

Record low24° (1976)

Wed, 2852° / 37°

0.21

52 °

Peru, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.21 in

Chance of precipitation30%

Record high72° (2023)

Record low24° (1976)

Thu, 2950° / 36°

0.17

50 °

Peru, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.17 in

Chance of precipitation28%

Record high67° (1989)

Record low25° (1965)

Fri, 3050° / 36°

0.18

50 °

Peru, Friday, 30 October

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.18 in

Chance of precipitation25%

Record high70° (2024)

Record low24° (2020)

Sat, 3151° / 36°

0.09

51 °

Peru, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.09 in

Chance of precipitation23%

Record high72° (2024)

Record low16° (2011)

Sun, 0152° / 37°

0.14

52 °

Peru, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.14 in

Chance of precipitation27%

Record high70° (1974)

Record low24° (2011)

Mon, 0252° / 37°

0.13

52 °

Peru, Monday, 2 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.13 in

Chance of precipitation32%

Record high72° (1982)

Record low22° (2011)

Tue, 0352° / 37°

0.16

52 °

Peru, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.16 in

Chance of precipitation38%

Record high67° (2003)

Record low24° (1980)

Wed, 0450° / 36°

0.06

50 °

Peru, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.06 in

Chance of precipitation27%

Record high69° (1994)

Record low25° (2013)

Thu, 0550° / 36°

0.16

50 °

Peru, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°

Average low36°

Average precipitation0.16 in

Chance of precipitation35%

Record high70° (1994)

Record low25° (1965)

Fri, 0649° / 36°

0.13

49 °

Peru, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°

Average low36°

Average precipitation0.13 in

Chance of precipitation42%

Record high70° (2024)

Record low24° (2012)

Sat, 0748° / 34°

0.08

48 °

Peru, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°

Average low34°

Average precipitation0.08 in

Chance of precipitation27%

Record high66° (2020)

Record low24° (1962)

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, MA 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, MA 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.