Lacon, IL 14 Day Weather - 61540 WeatherWorld.com
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Lacon, IL Weather Forecast


Lacon, IL Weather Forecast Dated: 1221 PM Sat Sep 05 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Saturday, September 5, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
78°F 26°C
Sunny
Sizzling hot near 96°F 36°C with a heat index reaching 111°F 44°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds turning from the N to the ENE at 11 mph 17 km/h. Gusts up to 20 mph 32 km/h.
Sunday, September 6, 2026
Mid-Morning
71°F 21°C
Sunny
Mid-Afternoon
79°F 26°C
Cloudy
Early-Evening
71°F 22°C
Partly Cloudy
Comfortable with temperatures reaching 79°F 26°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the E to the ENE at 10 mph 15 km/h.
Monday, September 7, 2026
Mid-Morning
66°F 19°C
Sunny
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
72°F 22°C
Sunny
Enjoyable around 79°F 26°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds E at 9 mph 14 km/h.
Tuesday, September 8, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
89°F 31°C
Partly Cloudy
Early-Evening
87°F 31°C
Sunny
Warm temperatures up to 89°F 31°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds out of the S at 11 mph 18 km/h. Gusts up to 26 mph 42 km/h.
Wednesday, September 9, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
84°F 29°C
Overcast
Early-Evening
75°F 24°C
Cloudy
Very warm with a high of 84°F 29°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the WNW to the NNW at 6 mph 9 km/h.
Thursday, September 10, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
76°F 24°C
Partly Cloudy
Early-Evening
70°F 22°C
Sunny
Pleasant near 76°F 24°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.
Friday, September 11, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
76°F 24°C
Overcast
Early-Evening
72°F 22°C
Overcast
Comfortable with temperatures reaching 76°F 24°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds SE at 12 mph 19 km/h. Gusts up to 25 mph 39 km/h.
Saturday, September 12, 2026
Mid-Morning
70°F 21°C
Light Showers
Mid-Afternoon
84°F 29°C
Scattered Showers
Early-Evening
83°F 28°C
Sunny
Quite warm reaching 84°F 29°C, feeling like 89°F 31°C during peak afternoon, scattered downpours possible, with lower humidity and steady pressure. Winds out of the SSW at 15 mph 25 km/h. Gusts up to 22 mph 35 km/h.
Sunday, September 13, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
89°F 31°C
Sunny
Very hot with a high of 95°F 35°C, feeling closer to 102°F 39°C in the humidity, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds moving from the SSW to the S at 9 mph 15 km/h.
Monday, September 14, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
89°F 31°C
Sunny
Sizzling hot near 96°F 36°C with a heat index reaching 99°F 37°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds swinging from the SSW to the NE at 3 mph 5 km/h.
Tuesday, September 15, 2026
Mid-Morning
84°F 29°C
Overcast
Mid-Afternoon
98°F 37°C
Sunny
Early-Evening
87°F 31°C
Sunny
Hot and sweltering around 98°F 37°C (heat index 101°F 39°C), partly cloudy in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Wednesday, September 16, 2026
Mid-Morning
81°F 27°C
Cloudy
Mid-Afternoon
95°F 35°C
Nearby Thunderstorms
Early-Evening
85°F 30°C
Sunny
Very hot with a high of 95°F 35°C, feeling closer to 99°F 37°C in the humidity, heavy thunderstorms conditions at times, with steady humidity and steady pressure.
Thursday, September 17, 2026
Mid-Morning
73°F 23°C
Scattered Showers
Mid-Afternoon
90°F 32°C
Partly Cloudy
Early-Evening
85°F 29°C
Nearby Thunderstorms
Sizzling hot near 90°F 32°C with a heat index reaching 94°F 34°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds shifting from the ESE to the ENE at 6 mph 10 km/h.
Friday, September 18, 2026
Mid-Morning
69°F 21°C
Partly Cloudy
Mid-Afternoon
79°F 26°C
Partly Cloudy
Early-Evening
72°F 22°C
Overcast
Mild temperatures up to 79°F 26°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds turning from the NE to the ENE at 12 mph 19 km/h.
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