Lake Killarney, IL Weather Forecast

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Lake Killarney, IL Weather Forecast

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Lake Killarney IL weather  - Clear - 53°F
Clear
53°F
Updated 5:05 am
Feels Like 47°F
Humidity 82%
Wind SSW 3 mph
Barometer  30.13 in
Dew Point 48°F
Lake Killarney IL weather  - Clear - 12°C
Clear
12°C
Updated 5:05 am
Feels Like 9°C
Humidity 82%
Wind SSW 5 km/h
Barometer  102 kPa
Dew Point 9°C

Lake Killarney Weather Forecast

REST OF TONIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY
Lake Killarney, IL Weather - Rest Of Tonight Isolated Showers Lake Killarney, IL Weather - Sunday Mostly Sunny Lake Killarney, IL Weather - Sunday Night Clear Lake Killarney, IL Weather - Monday Sunny Lake Killarney, IL Weather - Monday Night Clear Lake Killarney, IL Weather - Tuesday Sunny Lake Killarney, IL Weather - Tuesday Night Mostly Clear Lake Killarney, IL Weather - Wednesday Partly Cloudy Lake Killarney, IL Weather - Wednesday Night Partly Cloudy Lake Killarney, IL Weather - Thursday Partly Cloudy Lake Killarney, IL Weather - Thursday Night Partly Cloudy Lake Killarney, IL Weather - Friday Partly Cloudy
Isolated Showers Mostly Sunny Clear Sunny Clear Sunny Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy
Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
Lo: 41°FLo: 5°C Hi: 65°FHi: 18°C
Lo: 41°FLo: 5°C Hi: 69°FHi: 21°C
Lo: 51°FLo: 11°C Hi: 71°FHi: 22°C
Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 121 AM CDT Sun Oct 04 2026 Lake Killarney, IL Weather - WeatherWorld.com

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Lake Killarney Forecast Discussion

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Issued: 152 AM CDT Sun Oct 4 2026

Key Messages

  • Dry weather with seasonable temperatures are expected through much of the upcoming week.

Discussion

... Issued at 152 AM CDT Sun Oct 4 2026

A potent mid-level wave crossing the northern Great Lakes early this morning continues to encounter dry mid-level air across the CWA. However, the strong forcing interacting with little available moisture below modestly steep lapse rates has yielded an axis of isolated showers strong enough to result in precip reaching the surface north of I-88/290 ...