As of 20:36 CDT

Weather in Peru, IL

64°

Peru, Tuesday, 6 October, 20:36

Clear. Feels like 63°. High 75°, low 48°.

Pressure29.88 inHg

Wind10.5 mph S

Humidity60%

Visibility6.2 mi

Dew point50°

See detailed hourly forecast

Wed, 0779° / 55°

79 °

Peru, Wednesday, 7 October

Clear. High 79°, low 55°.

Pressure29.88 inHg

Wind6.2 mph W

Humidity72%

Visibility6.2 mi

Dew point63°

Thu, 0872° / 51°

72 °

Peru, Thursday, 8 October

Clear. High 72°, low 51°.

Pressure30.12 inHg

Wind5.7 mph N

Humidity46%

Visibility6.2 mi

Dew point45°

Fri, 0976° / 49°

0.06

76 °

Peru, Friday, 9 October

Rain. High 76°, low 49°.

Pressure30.12 inHg

Wind8.5 mph SE

Humidity60%

Visibility6.2 mi

Dew point53°

Sat, 1081° / 60°

81 °

Peru, Saturday, 10 October

Clear. High 81°, low 60°.

Pressure30.03 inHg

Wind7.7 mph S

Humidity53%

Visibility6.2 mi

Dew point58°

Sun, 1169° / 59°

0.3

69 °

Peru, Sunday, 11 October

Rain. High 69°, low 59°.

Pressure29.83 inHg

Wind9.4 mph NE

Humidity89%

Visibility—

Dew point60°

Mon, 1280° / 53°

80 °

Peru, Monday, 12 October

Overcast. High 80°, low 53°.

Pressure29.85 inHg

Wind11.3 mph SW

Humidity51%

Visibility—

Dew point56°

Tue, 1367° / 56°

0.11

67 °

Peru, Tuesday, 13 October

Light rain. High 67°, low 56°.

Pressure30.00 inHg

Wind13.5 mph NE

Humidity86%

Visibility—

Dew point55°

Wed, 1471° / 55°

0.04

71 °

Peru, Wednesday, 14 October

Light rain. High 71°, low 55°.

Pressure29.94 inHg

Wind13.7 mph SE

Humidity72%

Visibility—

Dew point54°

Thu, 1574° / 52°

1.5

74 °

Peru, Thursday, 15 October

Heavy rain. High 74°, low 52°.

Pressure29.65 inHg

Wind25.5 mph SW

Humidity81%

Visibility—

Dew point67°

Fri, 1657° / 44°

57 °

Peru, Friday, 16 October

Clear. High 57°, low 44°.

Pressure30.15 inHg

Wind20.3 mph W

Humidity37%

Visibility—

Dew point28°

Sat, 1747° / 40°

47 °

Peru, Saturday, 17 October

Mostly clear. High 47°, low 40°.

Pressure30.18 inHg

Wind17.5 mph NW

Humidity54%

Visibility—

Dew point30°

Sun, 1856° / 37°

56 °

Peru, Sunday, 18 October

Clear. High 56°, low 37°.

Pressure30.15 inHg

Wind13.6 mph SW

Humidity48%

Visibility—

Dew point32°

Mon, 1962° / 44°

62 °

Peru, Monday, 19 October

Partly cloudy. High 62°, low 44°.

Pressure30.06 inHg

Wind10 mph SW

Humidity49%

Visibility—

Dew point39°

Tue, 2061° / 44°

61 °

Peru, Tuesday, 20 October

Overcast. High 61°, low 44°.

Pressure30.27 inHg

Wind9.8 mph E

Humidity58%

Visibility—

Dew point43°

Wed, 2167° / 46°

67 °

Peru, Wednesday, 21 October

Overcast. High 67°, low 46°.

Pressure30.21 inHg

Wind7.7 mph SE

Humidity56%

Visibility—

Dew point44°

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, IL 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, IL 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.