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Posen, IL Weather Forecast
Posen, IL Weather Forecast Dated: 324 AM Fri Oct 09 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and a stable pattern will dominate.
Friday, October 9, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
75°F 24°C
Scattered Showers
Early-Evening
67°F 19°C
Scattered Showers
Pleasant near 75°F 24°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure.
Saturday, October 10, 2026
Mid-Morning
68°F 20°C
Overcast
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
72°F 23°C
Overcast
Comfortable with temperatures reaching 78°F 26°C, overcast throughout the day, with steady humidity and steady pressure. Winds turning from the S to the SE at 8 mph 12 km/h. Gusts up to 21 mph 33 km/h.
Sunday, October 11, 2026
Mid-Morning
64°F 18°C
Scattered Showers
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
68°F 20°C
Sunny
Enjoyable around 73°F 23°C, locally heavy downpours at times, with lower humidity and steady pressure.
Monday, October 12, 2026
Mid-Morning
68°F 20°C
Cloudy
Mid-Afternoon
85°F 30°C
Overcast
Early-Evening
76°F 24°C
Drizzle
Warm temperatures up to 85°F 30°C, drier conditions through late afternoon before showers move in, with steady humidity and barometric pressure falling. Winds blowing from the SW at 13 mph 20 km/h. Gusts up to 22 mph 34 km/h.
Tuesday, October 13, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
65°F 18°C
Cloudy
Early-Evening
59°F 16°C
Sunny
Refreshing around 65°F 18°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure rising. Winds moving from the NNE to the NE at 8 mph 12 km/h.
Wednesday, October 14, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
59°F 15°C
Cloudy
Mildly cool near 61°F 16°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Thursday, October 15, 2026
Mid-Morning
58°F 15°C
Drizzle
Mid-Afternoon
67°F 20°C
Light Rain
Early-Evening
70°F 22°C
Light Showers
Comfortable at 67°F 20°C, rounds of showers expected off and on all day, with steady humidity and barometric pressure falling. Winds swinging from the SE to the SSW at 14 mph 23 km/h. Gusts up to 36 mph 58 km/h.
Friday, October 16, 2026
Mid-Morning
54°F 12°C
Overcast
Mid-Afternoon
54°F 12°C
Overcast
Early-Evening
50°F 10°C
Overcast
Crisp with a high near 54°F 12°C, overcast throughout the day, with lower humidity and barometric pressure rising. Winds shifting from the WSW to the W at 16 mph 25 km/h. Gusts up to 33 mph 54 km/h.
Saturday, October 17, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
48°F 9°C
Scattered Showers
Early-Evening
48°F 9°C
Overcast
Brisk around 48°F 9°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds turning from the NW to the NNW at 7 mph 11 km/h.
Sunday, October 18, 2026
Mid-Morning
47°F 9°C
Sunny
Mid-Afternoon
56°F 13°C
Partly Cloudy
Early-Evening
53°F 12°C
Sunny
Cool and brisk at 56°F 13°C, sunny through the afternoon, turning overcast this evening, with steady humidity and steady pressure.
Monday, October 19, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
62°F 16°C
Partly Cloudy
Early-Evening
57°F 14°C
Sunny
Comfortable at 62°F 16°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Tuesday, October 20, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
59°F 15°C
Sunny
Cool with a high near 64°F 18°C, sunny throughout the day, with steady humidity and steady pressure.
Wednesday, October 21, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
61°F 16°C
Clear
Enjoyable around 68°F 20°C, sunny throughout the day, with steady humidity and steady pressure.
Thursday, October 22, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
66°F 19°C
Sunny
Early-Evening
60°F 15°C
Clear
Mildly cool near 66°F 19°C, sunny throughout the day, with steady humidity and steady pressure.
Posen, IL Weather Radar Map
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