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Blackstone, IL Weather Forecast
Blackstone, IL Weather Forecast Dated: 645 PM Wed Sep 09 2026
Expect a mild stretch with a mix of sun and clouds and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Wednesday, September 9, 2026
Mid-Morning
70°F 21°C
Heavy Rain
Mid-Afternoon
78°F 26°C
Heavy Rain
Early-Evening
75°F 24°C
Scattered Showers
Pleasant near 78°F 26°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the W to the WSW at 6 mph 10 km/h.
Thursday, September 10, 2026
Mid-Morning
67°F 20°C
Light Showers
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
71°F 22°C
Scattered Showers
Comfortable with temperatures reaching 73°F 23°C, scattered downpours possible, with steady humidity and steady pressure.
Friday, September 11, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
74°F 23°C
Sunny
Enjoyable around 78°F 26°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds blowing from the SSE at 6 mph 10 km/h.
Saturday, September 12, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
84°F 29°C
Partly Cloudy
Early-Evening
79°F 26°C
Overcast
Warm and summery around 84°F 29°C (feels like 87°F 30°C), sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Sunday, September 13, 2026
Mid-Morning
71°F 21°C
Overcast
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
78°F 26°C
Overcast
Very warm with a high of 81°F 27°C, overcast throughout the day, with steady humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
74°F 23°C
Heavy Rain Showers
Mid-Afternoon
88°F 31°C
Cloudy
Early-Evening
82°F 28°C
Nearby Thunderstorms
Very warm near 88°F 31°C, though humidity makes it feel like 94°F 34°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds moving from the S to the WSW at 11 mph 17 km/h. Gusts up to 23 mph 37 km/h.
Tuesday, September 15, 2026
Mid-Morning
64°F 18°C
Light Showers
Mid-Afternoon
68°F 20°C
Overcast
Early-Evening
66°F 19°C
Overcast
Comfortable with temperatures reaching 68°F 20°C, early showers breaking for a drier afternoon, with steady humidity and steady pressure. Winds swinging from the NNW to the ESE at 7 mph 11 km/h.
Wednesday, September 16, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
70°F 21°C
Overcast
Early-Evening
66°F 19°C
Light Showers
Enjoyable around 70°F 21°C, mainly dry until evening showers arrive, with steady humidity and steady pressure. Winds shifting from the ENE to the NE at 8 mph 12 km/h.
Thursday, September 17, 2026
Mid-Morning
60°F 16°C
Scattered Showers
Mid-Afternoon
65°F 18°C
Light Showers
Early-Evening
66°F 19°C
Overcast
Refreshing around 65°F 18°C, locally heavy downpours at times, with steady humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
66°F 19°C
Light Fog
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
74°F 23°C
Sunny
Mild with a high of 77°F 25°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
74°F 23°C
Overcast
Mid-Afternoon
86°F 30°C
Cloudy
Early-Evening
81°F 27°C
Sunny
Quite warm reaching 86°F 30°C, feeling like 90°F 32°C during peak afternoon, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds decreasing from SSW 13 mph 21 km/h to WNW 5 mph 8 km/h.
Sunday, September 20, 2026
Mid-Morning
72°F 22°C
Partly Cloudy
Mid-Afternoon
81°F 27°C
Scattered Showers
Early-Evening
75°F 24°C
Partly Cloudy
Very warm near 81°F 27°C, though humidity makes it feel like 84°F 29°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds switching from the NE to the ENE at 8 mph 13 km/h.
Monday, September 21, 2026
Mid-Morning
67°F 20°C
Light Showers
Mid-Afternoon
73°F 23°C
Overcast
Early-Evening
69°F 21°C
Scattered Showers
Enjoyable around 73°F 23°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds moving from the ESE to the E at 9 mph 15 km/h.
Tuesday, September 22, 2026
Mid-Morning
66°F 19°C
Fog
Mid-Afternoon
72°F 22°C
Scattered Showers
Early-Evening
71°F 21°C
Scattered Showers
Mild temperatures up to 72°F 22°C, scattered downpours possible, with steady humidity and steady pressure.
Blackstone, IL Weather Radar Map
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