Deer Lake, IL Weather Forecast

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Deer Lake, IL Weather Forecast

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Deer Lake IL weather  - Clear - 65°F
Clear
65°F
Updated 6:51 pm
Feels Like 59°F
Humidity 62%
Wind SSE 7 mph
Barometer  30.33 in
Dew Point 52°F
Deer Lake IL weather  - Clear - 18°C
Clear
18°C
Updated 6:51 pm
Feels Like 15°C
Humidity 62%
Wind SSE 11 km/h
Barometer  102.7 kPa
Dew Point 11°C

Deer Lake Weather Forecast

TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY
Deer Lake, IL Weather - Tonight Patchy Fog Deer Lake, IL Weather - Monday Mostly Cloudy Deer Lake, IL Weather - Monday Night Mostly Cloudy Deer Lake, IL Weather - Tuesday Mostly Cloudy Deer Lake, IL Weather - Tuesday Night Mostly Cloudy Deer Lake, IL Weather - Wednesday Clearing Deer Lake, IL Weather - Wednesday Night Chance Of Showers Deer Lake, IL Weather - Thursday Chance Of T-Storm Deer Lake, IL Weather - Thursday Night Mostly Cloudy Deer Lake, IL Weather - Friday Chance Of Showers Deer Lake, IL Weather - Friday Night Chance Of Showers Deer Lake, IL Weather - Saturday Chance Of Showers
Patchy Fog Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Clearing Chance of Showers Chance of T-Storm Mostly Cloudy Chance of Showers Chance of Showers Chance of Showers
Lo: 51°FLo: 11°C Hi: 61°FHi: 16°C
Lo: 49°FLo: 9°C Hi: 65°FHi: 18°C
Lo: 55°FLo: 13°C Hi: 69°FHi: 21°C
Lo: 59°FLo: 15°C Hi: 75°FHi: 24°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C Hi: 70°FHi: 21°C
POP: 20% POP: 20% POP: 30% POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 551 PM CDT Sun Oct 25 2026 Deer Lake, IL Weather - WeatherWorld.com

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Deer Lake Forecast Discussion

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Issued: 1229 PM CDT Sun Oct 25 2026

Key Messages

  • A cold front will move across the area tonight leading to low clouds and cooler temperatures tomorrow, especially north of Interstate 80.
  • The relative cool down will be short-lived as high temperatures rebound to the low to mid 70s by the middle of the week.
  • A pattern change toward more opportunities for regular rainfall is set to occur toward the end of the week and into the first week of November.

Discussion

... Issued at 1229 PM CDT Sun Oct 25 2026

The upper-level pattern remains ben...