Lerna, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Lerna, IL in one place.
Partly sunny, with a high near 78. Southeast wind around 5 mph.
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: Jul 23, 2026 10:00 PM CDT.
The active forecast window currently covers Jul 24 to Jul 30, 2026 for Lerna, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 30, 2026
- Latest sync
- Jul 23, 2026 10:00 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Lerna
Monday looks like the warmest upcoming period in Lerna at 94 degrees F.
Friday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Monday at about 7 to 13 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 10:00 PM CDT
- Coverage
- 7 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
A chance of rain showers after 11pm. Mostly cloudy, with a low around 62. Southeast wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 82. South wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
Partly cloudy, with a low around 68. South southwest wind 1 to 5 mph.
Mostly sunny, with a high near 90. West wind around 5 mph.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 72. Southwest wind 2 to 7 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 94.
Mostly clear, with a low around 73.
Sunny, with a high near 91.
Partly cloudy, with a low around 68.
Mostly sunny, with a high near 87.
Mostly clear, with a low around 67.
Sunny, with a high near 87.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Partly Sunny
|
78°F |
5 mph
SE
|
|
Friday Night
Jul 24
|
Chance Rain Showers
|
62°F |
3 mph
SE
|
|
Saturday
Jul 25
|
Chance Showers And Thunderstorms
|
82°F |
3 to 7 mph
S
|
|
Saturday Night
Jul 25
|
Partly Cloudy
|
68°F |
1 to 5 mph
SSW
|
|
Sunday
Jul 26
|
Mostly Sunny
|
90°F |
5 mph
W
|
|
Sunday Night
Jul 26
|
Slight Chance Showers And Thunderstorms
|
72°F |
2 to 7 mph
SW
|
|
Monday
Jul 27
|
Mostly Sunny
|
94°F |
7 to 13 mph
SW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
73°F |
7 to 10 mph
WSW
|
|
Tuesday
Jul 28
|
Sunny
|
91°F |
9 mph
NNW
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
68°F |
5 to 8 mph
NE
|
|
Wednesday
Jul 29
|
Mostly Sunny
|
87°F |
7 mph
NE
|
|
Wednesday Night
Jul 29
|
Mostly Clear
|
67°F |
6 mph
ENE
|
|
Thursday
Jul 30
|
Sunny
|
87°F |
7 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lerna.