Eureka, IL 14 Day Weather - 61530 WeatherWorld.com
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Eureka, IL Weather Forecast


Eureka, IL Weather Forecast Dated: 255 PM Thu Sep 03 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.
Thursday, September 3, 2026
Mid-Morning
82°F 28°C
Sunny
Mid-Afternoon
96°F 36°C
Sunny
Early-Evening
89°F 32°C
Nearby Thunderstorms
Sizzling hot near 96°F 36°C with a heat index reaching 108°F 42°C, periods of heavy thunderstorms, with lower humidity and steady pressure. Winds turning from the SW to the SSE at 10 mph 15 km/h. Gusts up to 21 mph 33 km/h.
Friday, September 4, 2026
Mid-Morning
81°F 27°C
Scattered Showers
Mid-Afternoon
93°F 34°C
Nearby Thunderstorms
Early-Evening
89°F 32°C
Overcast
Hot and sweltering around 93°F 34°C (heat index 99°F 37°C), scattered downpours possible, with steady humidity and steady pressure. Winds switching from the SW to the SSE at 6 mph 10 km/h.
Saturday, September 5, 2026
Mid-Morning
79°F 26°C
Scattered Showers
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
81°F 27°C
Sunny
Very hot with a high of 91°F 33°C, feeling closer to 95°F 35°C in the humidity, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the NNW to the ENE at 12 mph 20 km/h. Gusts up to 21 mph 33 km/h.
Sunday, September 6, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
73°F 23°C
Sunny
Warm temperatures up to 80°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds out of the E at 12 mph 19 km/h. Gusts up to 20 mph 31 km/h.
Monday, September 7, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
71°F 22°C
Sunny
Mild with a high of 77°F 25°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds shifting from the E to the ESE at 8 mph 13 km/h.
Tuesday, September 8, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
84°F 29°C
Partly Cloudy
Early-Evening
84°F 29°C
Overcast
Warm and summery near 84°F 29°C, partly cloudy in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds SSE at 9 mph 14 km/h. Gusts up to 27 mph 44 km/h.
Wednesday, September 9, 2026
Mid-Morning
85°F 29°C
Cloudy
Mid-Afternoon
94°F 35°C
Cloudy
Early-Evening
87°F 31°C
Overcast
Hot and sweltering around 94°F 35°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds switching from the WSW to the ESE at 9 mph 15 km/h.
Thursday, September 10, 2026
Mid-Morning
75°F 24°C
Scattered Showers
Mid-Afternoon
80°F 27°C
Overcast
Early-Evening
72°F 22°C
Overcast
Quite warm around 80°F 27°C, scattered downpours possible, with steady humidity and steady pressure. Winds moving from the NNE to the ESE at 9 mph 13 km/h.
Friday, September 11, 2026
Mid-Morning
66°F 19°C
Cloudy
Mid-Afternoon
69°F 20°C
Overcast
Early-Evening
70°F 21°C
Overcast
Mild temperatures up to 69°F 20°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.
Saturday, September 12, 2026
Mid-Morning
70°F 21°C
Overcast
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
81°F 27°C
Partly Cloudy
Very warm with a high of 84°F 29°C, overcast in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds SSE at 15 mph 23 km/h. Gusts up to 27 mph 43 km/h.
Sunday, September 13, 2026
Mid-Morning
77°F 25°C
Scattered Showers
Mid-Afternoon
84°F 29°C
Scattered Showers
Early-Evening
77°F 26°C
Scattered Showers
Quite warm reaching 84°F 29°C, feeling like 89°F 32°C during peak afternoon, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds shifting from the SW to the W at 9 mph 14 km/h. Gusts up to 20 mph 32 km/h.
Monday, September 14, 2026
Mid-Morning
76°F 25°C
Overcast
Mid-Afternoon
90°F 32°C
Partly Cloudy
Early-Evening
74°F 23°C
Sunny
Very hot with a high of 90°F 32°C, feeling closer to 93°F 34°C in the humidity, cloudy in the morning, partly cloudy in the afternoon, and overcast this evening, with increasing humidity and steady pressure. Winds turning from the SW to the WNW at 15 mph 24 km/h. Gusts up to 26 mph 41 km/h.
Tuesday, September 15, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
65°F 19°C
Sunny
Enjoyable around 72°F 22°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the W to the NW at 8 mph 13 km/h.
Wednesday, September 16, 2026
Mid-Morning
58°F 15°C
Sunny
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
65°F 19°C
Partly Cloudy
Mild temperatures up to 69°F 20°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the NNW to the NNE at 7 mph 11 km/h.
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