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Olson Park, IL 14 Day Weather
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Olson Park, IL Weather Forecast
Olson Park, IL Weather Forecast Dated: 257 AM Wed Sep 16 2026
Expect a mild stretch with more clouds than sun and frequent chances of rain over the coming period. generally humid conditions and no major pressure swings will dominate.
Wednesday, September 16, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
69°F 20°C
Scattered Showers
Early-Evening
64°F 18°C
Overcast
Pleasant near 69°F 20°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the NE to the E at 7 mph 11 km/h.
Thursday, September 17, 2026
Mid-Morning
64°F 18°C
Partly Cloudy
Mid-Afternoon
76°F 25°C
Partly Cloudy
Early-Evening
73°F 23°C
Light Showers
Comfortable with temperatures reaching 76°F 25°C, mainly dry until evening showers arrive, with steady humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
61°F 16°C
Light Showers
Mid-Afternoon
71°F 22°C
Light Showers
Early-Evening
64°F 17°C
Overcast
Enjoyable around 71°F 22°C, showers through the afternoon, tapering off by evening, with steady humidity and barometric pressure falling. Winds switching from the E to the ENE at 14 mph 23 km/h. Gusts up to 24 mph 38 km/h.
Saturday, September 19, 2026
Mid-Morning
71°F 22°C
Overcast
Mid-Afternoon
69°F 21°C
Light Showers
Early-Evening
68°F 20°C
Light Showers
Mild temperatures up to 69°F 21°C, drier morning followed by showers lasting through evening, with steady humidity and steady pressure. Winds moving from the SW to the NE at 7 mph 11 km/h.
Sunday, September 20, 2026
Mid-Morning
67°F 19°C
Light Showers
Mid-Afternoon
73°F 23°C
Scattered Showers
Early-Evening
67°F 20°C
Light Showers
Mild with a high of 73°F 23°C, scattered downpours possible, with steady humidity and steady pressure. Winds swinging from the E to the NNE at 9 mph 14 km/h.
Monday, September 21, 2026
Mid-Morning
65°F 18°C
Light Showers
Mid-Afternoon
73°F 23°C
Light Showers
Early-Evening
70°F 21°C
Scattered Showers
Pleasant near 73°F 23°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds shifting from the E to the W at 8 mph 12 km/h.
Tuesday, September 22, 2026
Mid-Morning
63°F 17°C
Light Fog
Mid-Afternoon
66°F 19°C
Scattered Showers
Early-Evening
63°F 18°C
Scattered Showers
Comfortable at 66°F 19°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the W to the WNW at 7 mph 11 km/h.
Wednesday, September 23, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
70°F 21°C
Cloudy
Enjoyable around 72°F 22°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and barometric pressure falling. Winds picking up from SW at 4 mph 6 km/h to SSW at 12 mph 19 km/h. Gusts up to 21 mph 34 km/h.
Thursday, September 24, 2026
Mid-Morning
51°F 10°C
Light Showers
Mid-Afternoon
55°F 13°C
Scattered Showers
Early-Evening
54°F 13°C
Overcast
Brisk around 55°F 13°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the W to the NW at 19 mph 31 km/h. Gusts up to 33 mph 53 km/h.
Friday, September 25, 2026
Mid-Morning
53°F 12°C
Light Fog
Mid-Afternoon
64°F 18°C
Sunny
Early-Evening
59°F 15°C
Sunny
Mildly cool near 64°F 18°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the NNW to the SE at 3 mph 6 km/h.
Saturday, September 26, 2026
Mid-Morning
57°F 14°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
64°F 18°C
Sunny
Pleasant near 68°F 20°C, sunny through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds shifting from the S to the SSE at 8 mph 12 km/h.
Sunday, September 27, 2026
Mid-Morning
62°F 16°C
Sunny
Mid-Afternoon
72°F 22°C
Overcast
Early-Evening
67°F 20°C
Overcast
Comfortable with temperatures reaching 72°F 22°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds blowing from the S at 13 mph 20 km/h. Gusts up to 22 mph 35 km/h.
Monday, September 28, 2026
Mid-Morning
67°F 19°C
Overcast
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
76°F 24°C
Sunny
Quite warm around 80°F 27°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the SSW to the SSE at 9 mph 15 km/h.
Tuesday, September 29, 2026
Mid-Morning
71°F 22°C
Scattered Showers
Mid-Afternoon
65°F 18°C
Light Showers
Early-Evening
63°F 18°C
Overcast
Mildly cool near 65°F 18°C, scattered downpours possible, with steady humidity and steady pressure. Winds moving from the SSW to the WNW at 8 mph 14 km/h. Gusts up to 21 mph 34 km/h.
Olson Park, IL Weather Radar Map
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