Lostant, IL Weather Forecast

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Lostant, IL Weather Forecast

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Lostant IL weather  - Clear - 80°F
Clear
80°F
Updated 10:18 pm
Feels Like 86°F
Humidity 83%
Wind NNW 3 mph
Barometer  29.94 in
Dew Point 75°F
Lostant IL weather  - Clear - 27°C
Clear
27°C
Updated 10:18 pm
Feels Like 30°C
Humidity 83%
Wind NNW 5 km/h
Barometer  101.4 kPa
Dew Point 24°C

Lostant Weather Forecast

TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT LABOR DAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY
Lostant, IL Weather - Tonight Chance Of T-Storm Lostant, IL Weather - Saturday Patchy Fog Lostant, IL Weather - Saturday Night Mostly Clear Lostant, IL Weather - Sunday Mostly Sunny Lostant, IL Weather - Sunday Night Mostly Clear Lostant, IL Weather - Labor Day Partly Cloudy Lostant, IL Weather - Monday Night Partly Cloudy Lostant, IL Weather - Tuesday Partly Cloudy Lostant, IL Weather - Tuesday Night Partly Cloudy Lostant, IL Weather - Wednesday Partly Cloudy Lostant, IL Weather - Wednesday Night Chance Of Showers Lostant, IL Weather - Thursday Partly Cloudy
Chance of T-Storm Patchy Fog Mostly Clear Mostly Sunny Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Chance of Showers Partly Cloudy
Lo: 75°FLo: 24°C Hi: 90°FHi: 32°C
Lo: 65°FLo: 18°C Hi: 81°FHi: 27°C
Lo: 61°FLo: 16°C Hi: 81°FHi: 27°C
Lo: 65°FLo: 18°C Hi: 90°FHi: 32°C
Lo: 71°FLo: 22°C Hi: 91°FHi: 33°C
Lo: 69°FLo: 21°C Hi: 81°FHi: 27°C
POP: 20% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 856 PM CDT Fri Sep 04 2026 Lostant, IL Weather - WeatherWorld.com

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Issued: 835 PM CDT Fri Sep 4 2026

Key Messages

  • Chance of scattered showers and thunderstorms tonight.
  • Gradually turning cooler and less humid this weekend, though remaining seasonably warm.
  • Moderate to high swim risk expected late Saturday into early Sunday during the final weekend of beach season.

Discussion

... Issued at 314 PM CDT Fri Sep 4 2026

Breezy east-northeasterly winds this morning in the wake of the outflow boundary have significantly impacted the ability to heat up through early afternoon. This has particularly been tru...