Lostant, IL Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lostant, IL in one place.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 88. Heat index values as high as 96. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Lostant, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 8, 2026 3:09 PM CDT.
The active forecast window currently covers Jun 9 to Jun 14, 2026 for Lostant, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 3:09 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Lostant
Wednesday looks like the warmest upcoming period in Lostant at 90 degrees F.
Sunday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Wednesday at about 10 to 20 mph SSW.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 3:09 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 73. Heat index values as high as 95. South southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am. Sunny, with a high near 90. South southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 72. Chance of precipitation is 70%.
Showers and thunderstorms likely. Partly sunny, with a high near 87.
Showers and thunderstorms likely before 7pm, then showers and thunderstorms likely. Partly cloudy, with a low around 65.
A slight chance of rain showers before 7am. Sunny, with a high near 87.
A chance of showers and thunderstorms after 7pm. Mostly clear, with a low around 64.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Showers and thunderstorms likely. Partly cloudy, with a low around 64.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 81.
A chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Slight Chance Rain Showers then Mostly Sunny
|
88°F |
5 to 10 mph
WSW
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms
|
73°F |
5 to 10 mph
SSW
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms then Sunny
|
90°F |
10 to 20 mph
SSW
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms Likely
|
72°F |
15 to 20 mph
SW
|
|
Thursday
Jun 11
|
Showers And Thunderstorms Likely
|
87°F |
10 to 15 mph
SW
|
|
Thursday Night
Jun 11
|
Showers And Thunderstorms Likely
|
65°F |
5 to 15 mph
WSW
|
|
Friday
Jun 12
|
Slight Chance Rain Showers then Sunny
|
87°F |
5 to 10 mph
W
|
|
Friday Night
Jun 12
|
Chance Showers And Thunderstorms
|
64°F |
5 to 10 mph
SW
|
|
Saturday
Jun 13
|
Chance Rain Showers
|
86°F |
5 to 10 mph
SW
|
|
Saturday Night
Jun 13
|
Showers And Thunderstorms Likely
|
64°F |
5 to 10 mph
W
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
81°F |
5 to 10 mph
NNW
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
59°F |
5 to 10 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lostant.