10-day forecast for Lerna, IL: 39° to 78°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
78°
Best day: Sunday, October 25
64° · 0.04 in
Worst day: Friday, October 16
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1761° / 41°0
Morning42°feels 38°
Afternoon61°feels 59°
Evening53°feels 51°
Overnight45°feels 40°
61 °
Lerna, Saturday, 17 October
Clear. High 61°, low 41°.
Pressure30.56 inHg
Wind4.1 mph NE
Humidity53%
Visibility6.2 mi
Dew point37°
Sun, 1862° / 39°0
Morning42°feels 38°
Afternoon62°feels 59°
Evening52°feels 50°
Overnight42°feels 39°
62 °
Lerna, Sunday, 18 October
Clear. High 62°, low 39°.
Pressure30.50 inHg
Wind8.5 mph S
Humidity37%
Visibility6.2 mi
Dew point33°
Mon, 1967° / 42°0
Morning45°feels 42°
Afternoon67°feels 65°
Evening55°feels 53°
Overnight46°feels 44°
67 °
Lerna, Monday, 19 October
Clear. High 67°, low 42°.
Pressure30.42 inHg
Wind3.9 mph S
Humidity40%
Visibility6.2 mi
Dew point39°
Tue, 2070° / 45°0
Morning50°feels 50°
Afternoon69°feels 67°
Evening61°feels 59°
Overnight49°feels 49°
70 °
Lerna, Tuesday, 20 October
Overcast. High 70°, low 45°.
Pressure30.36 inHg
Wind2 mph SE
Humidity43%
Visibility6.2 mi
Dew point43°
Wed, 2172° / 52°0
Morning58°feels 56°
Afternoon70°feels 68°
Evening61°feels 59°
Overnight58°feels 56°
72 °
Lerna, Wednesday, 21 October
Mostly clear. High 72°, low 52°.
Pressure30.27 inHg
Wind3.7 mph SE
Humidity32%
Visibility—
Dew point38°
Thu, 2274° / 51°0
Morning57°feels 55°
Afternoon71°feels 69°
Evening63°feels 60°
Overnight58°feels 55°
74 °
Lerna, Thursday, 22 October
Mostly clear. High 74°, low 51°.
Pressure30.21 inHg
Wind5.5 mph SE
Humidity30%
Visibility—
Dew point36°
Fri, 2375° / 54°0
Morning60°feels 57°
Afternoon72°feels 70°
Evening64°feels 62°
Overnight60°feels 58°
75 °
Lerna, Friday, 23 October
Overcast. High 75°, low 54°.
Pressure30.18 inHg
Wind6.3 mph SE
Humidity26%
Visibility—
Dew point34°
Sat, 2477° / 57°0
Morning62°feels 60°
Afternoon74°feels 73°
Evening65°feels 64°
Overnight61°feels 59°
77 °
Lerna, Saturday, 24 October
Overcast. High 77°, low 57°.
Pressure30.27 inHg
Wind7.7 mph SE
Humidity27%
Visibility—
Dew point37°
Sun, 2578° / 55°0
Morning61°feels 60°
Afternoon74°feels 73°
Evening68°feels 66°
Overnight63°feels 62°
78 °
Lerna, Sunday, 25 October
Overcast. High 78°, low 55°.
Pressure30.18 inHg
Wind9.5 mph S
Humidity38%
Visibility—
Dew point45°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Lerna, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.