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Weather in Lacon, IL · National Weather Service + NOAA

Lacon is drier than most of Illinois

Lacon has chilly winters and warm summers. A typical July afternoon reaches 86°, a January night drops to 16°, and about 25 inches of snow falls in a normal winter. In November, a normal day reaches 50° and a normal night drops to 31°.

Right now
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Sunrise 6:29 am · sunset 4:52 pm

Getting the latest forecast from the National Weather Service…

What stands out about Lacon’s weather

Read from 30 years of NOAA records. Each one opens the full story on the Climate page.

Climate →
A normal year

Where today sits in Lacon’s year

Typical highs and lows month by month, from 30 years of NOAA records.

Full climate →
Winter
36° / 19°
8 days with an inch or more of snow
Spring
62° / 40°
Last frost around Apr 20
Summer
84° / 62°
29 days reach 90° in a normal year
Fall now
65° / 43°
First frost around Oct 17

Weather talk

Road reports, first frosts and storm memories from neighbors in Lacon.

Town Square →
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Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Lacon itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Lacon, IL (1 mi). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.