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Peru, IL Weather Forecast

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Peru, IL Weather Forecast

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Peru IL weather - Mostly Cloudy - 78°F
Mostly Cloudy
78°F
Updated 10:38 am
Feels Like 80°F
Humidity 69%
Wind ESE 7 mph
Barometer  30.1 in
Dew Point 68°F
Peru IL weather - Mostly Cloudy - 26°C
Mostly Cloudy
26°C
Updated 10:38 am
Feels Like 26°C
Humidity 69%
Wind ESE 11 km/h
Barometer  101.9 kPa
Dew Point 20°C
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Peru Weather Forecast

REST OF TODAY TONIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT
Peru, IL Weather - Rest Of Today Partly Cloudy Peru, IL Weather - Tonight Partly Cloudy Peru, IL Weather - Labor Day Mostly Sunny Peru, IL Weather - Monday Night Partly Cloudy Peru, IL Weather - Tuesday Partly Cloudy Peru, IL Weather - Tuesday Night Chance Of T-Storm Peru, IL Weather - Wednesday Chance Of T-Storm Peru, IL Weather - Wednesday Night Partly Cloudy Peru, IL Weather - Thursday Clearing Peru, IL Weather - Thursday Night Mostly Clear Peru, IL Weather - Friday Mostly Sunny Peru, IL Weather - Friday Night Partly Cloudy
Partly Cloudy Partly Cloudy Mostly Sunny Partly Cloudy Partly Cloudy Chance of T-Storm Chance of T-Storm Partly Cloudy Clearing Mostly Clear Mostly Sunny Partly Cloudy
Hi: 81°FHi: 27°C
 Lo: 60°FLo: 16°C Hi: 81°FHi: 27°C
 Lo: 61°FLo: 16°C Hi: 89°FHi: 32°C
 Lo: 71°FLo: 22°C Hi: 89°FHi: 32°C
 Lo: 61°FLo: 16°C Hi: 81°FHi: 27°C
 Lo: 59°FLo: 15°C Hi: 81°FHi: 27°C
 Lo: 61°FLo: 16°C
POP: 20% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 916 AM CDT Sun Sep 06 2026 Peru, IL Weather - WeatherWorld.com

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Issued: 626 AM CDT Sun Sep 6 2026

Key Messages

  • Moderate Swim Risk this morning at Illinois Lake Michigan beaches.
  • Seasonably warm conditions today and Monday, although cooler and more comfortable than recent days.

Discussion

... Issued at 220 AM CDT Sun Sep 6 2026

Conditions are nice and quiet out there this morning as we`re off to a mild start to our Sunday. Relatively cooler, but still seasonably warm, weather is in store for today following a stretch a hot, humid conditions. High temperatures are forecast in the lower 80s today a...