Lerna, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Lerna, IL in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 82. South southeast wind 7 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Lerna, 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 7, 2026 1:50 AM CDT.
The active forecast window currently covers Jun 8 to Jun 13, 2026 for Lerna, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 8 to Jun 13, 2026
- Latest sync
- Jun 7, 2026 1:50 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lerna
Wednesday looks like the warmest upcoming period in Lerna at 91 degrees F.
Monday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Thursday at about 9 to 14 mph SSW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 7, 2026 1:50 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms. Mostly cloudy, with a low around 68. South wind 7 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. South southwest wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. South southwest wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7am. Sunny, with a high near 91. Chance of precipitation is 30%.
Mostly clear, with a low around 73.
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91.
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
A chance of rain showers before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 8
|
Showers And Thunderstorms
|
82°F |
7 to 12 mph
SSE
|
|
Monday Night
Jun 8
|
Showers And Thunderstorms
|
68°F |
7 to 10 mph
S
|
|
Tuesday
Jun 9
|
Chance Showers And Thunderstorms
|
86°F |
8 mph
SSW
|
|
Tuesday Night
Jun 9
|
Chance Showers And Thunderstorms
|
72°F |
8 mph
SSW
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms then Sunny
|
91°F |
8 to 13 mph
SSW
|
|
Wednesday Night
Jun 10
|
Mostly Clear
|
73°F |
12 mph
SSW
|
|
Thursday
Jun 11
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
91°F |
9 to 14 mph
SSW
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
71°F |
7 to 12 mph
SW
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms
|
90°F |
8 mph
SW
|
|
Friday Night
Jun 12
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
68°F |
7 mph
SW
|
|
Saturday
Jun 13
|
Chance Showers And Thunderstorms
|
87°F |
7 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lerna.