Brookhaven, IL 14 Day Weather - WeatherWorld.com
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Brookhaven, IL Weather Forecast


Brookhaven, IL Weather Forecast Dated: 754 PM Thu Sep 03 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate. Isolated storms at times.
Thursday, September 3, 2026
Mid-Morning
78°F 26°C
Scattered Showers
Mid-Afternoon
99°F 37°C
Scattered Showers
Early-Evening
88°F 31°C
Scattered Showers
Sizzling hot near 99°F 37°C with a heat index reaching 113°F 45°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. A stray shower or storm late in the day. Winds turning from the WSW to the SSE at 7 mph 11 km/h.
Friday, September 4, 2026
Mid-Morning
75°F 24°C
Overcast
Mid-Afternoon
87°F 31°C
Nearby Thunderstorms
Early-Evening
82°F 28°C
Nearby Thunderstorms
Quite warm reaching 87°F 31°C, feeling like 94°F 34°C during peak afternoon, locally heavy thunderstorms at times, with steady humidity and steady pressure. Winds switching from the ESE to the ENE at 7 mph 10 km/h.
Saturday, September 5, 2026
Mid-Morning
72°F 22°C
Scattered Showers
Mid-Afternoon
83°F 28°C
Partly Cloudy
Early-Evening
73°F 23°C
Sunny
Very warm near 83°F 28°C, though humidity makes it feel like 87°F 31°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the ENE to the NE at 10 mph 16 km/h.
Sunday, September 6, 2026
Mid-Morning
69°F 21°C
Sunny
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
69°F 21°C
Sunny
Mild temperatures up to 76°F 24°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the E to the NE at 8 mph 13 km/h.
Monday, September 7, 2026
Mid-Morning
64°F 18°C
Cloudy
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
71°F 21°C
Sunny
Mild with a high of 75°F 24°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds blowing from the E at 10 mph 16 km/h.
Tuesday, September 8, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
77°F 25°C
Partly Cloudy
Pleasant near 76°F 25°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds turning from the SSE to the S at 13 mph 21 km/h. Gusts up to 30 mph 48 km/h.
Wednesday, September 9, 2026
Mid-Morning
76°F 25°C
Partly Cloudy
Mid-Afternoon
83°F 29°C
Scattered Showers
Early-Evening
75°F 24°C
Partly Cloudy
Balmy with temperatures reaching 83°F 29°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the W to the NW at 8 mph 13 km/h.
Thursday, September 10, 2026
Mid-Morning
70°F 21°C
Cloudy
Mid-Afternoon
75°F 24°C
Light Showers
Early-Evening
74°F 23°C
Overcast
Enjoyable around 75°F 24°C, clouds building with afternoon showers likely, with steady humidity and steady pressure.
Friday, September 11, 2026
Mid-Morning
65°F 18°C
Scattered Showers
Mid-Afternoon
75°F 24°C
Partly Cloudy
Early-Evening
72°F 22°C
Sunny
Mild temperatures up to 75°F 24°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds blowing from the ESE at 12 mph 19 km/h. Gusts up to 22 mph 35 km/h.
Saturday, September 12, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
82°F 28°C
Sunny
Warm and summery around 84°F 29°C (feels like 88°F 31°C), sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the ESE to the SE at 8 mph 12 km/h.
Sunday, September 13, 2026
Mid-Morning
79°F 26°C
Partly Cloudy
Mid-Afternoon
88°F 31°C
Sunny
Early-Evening
81°F 28°C
Sunny
Quite warm reaching 88°F 31°C, feeling like 94°F 34°C during peak afternoon, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds out of the SW at 12 mph 19 km/h.
Monday, September 14, 2026
Mid-Morning
74°F 23°C
Scattered Showers
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
73°F 23°C
Scattered Showers
Comfortable with temperatures reaching 76°F 25°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds blowing from the SW at 10 mph 17 km/h.
Tuesday, September 15, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
65°F 19°C
Sunny
Early-Evening
60°F 15°C
Scattered Showers
Refreshing around 65°F 19°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the W to the WNW at 12 mph 19 km/h. Gusts up to 25 mph 40 km/h.
Wednesday, September 16, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
62°F 17°C
Partly Cloudy
Early-Evening
58°F 14°C
Overcast
Mildly cool near 62°F 17°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the NNW to the WSW at 6 mph 10 km/h.
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