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Spring Valley, IL Weather Forecast
Spring Valley, IL Weather Forecast Dated: 246 PM Tue Sep 08 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.
Tuesday, September 8, 2026
Mid-Morning
69°F 21°C
Overcast
Mid-Afternoon
89°F 32°C
Overcast
Early-Evening
81°F 27°C
Partly Cloudy
Warm and summery near 89°F 32°C, overcast through the afternoon, turning sunny this evening, with lower humidity and barometric pressure falling. Winds turning from the S to the SSE at 10 mph 16 km/h. Gusts up to 24 mph 38 km/h.
Wednesday, September 9, 2026
Mid-Morning
69°F 21°C
Scattered Showers
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
77°F 25°C
Overcast
Comfortable with temperatures reaching 79°F 26°C, scattered downpours possible, with steady humidity and steady pressure.
Thursday, September 10, 2026
Mid-Morning
65°F 18°C
Overcast
Mid-Afternoon
76°F 25°C
Sunny
Early-Evening
70°F 21°C
Sunny
Enjoyable around 76°F 25°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.
Friday, September 11, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
85°F 29°C
Cloudy
Early-Evening
78°F 25°C
Sunny
Warm and summery around 85°F 29°C (feels like 88°F 31°C), sunny in the morning, overcast in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds switching from the SSE to the SE at 7 mph 11 km/h.
Saturday, September 12, 2026
Mid-Morning
70°F 21°C
Overcast
Mid-Afternoon
75°F 24°C
Light Showers
Early-Evening
70°F 22°C
Light Showers
Mild with a high of 75°F 24°C, clouds and showers taking over for the afternoon and evening, with increasing humidity and steady pressure. Winds moving from the NW to the S at 2 mph 3 km/h.
Sunday, September 13, 2026
Mid-Morning
71°F 21°C
Fog
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
76°F 25°C
Overcast
Pleasant near 77°F 25°C, overcast throughout the day, with lower humidity and steady pressure.
Monday, September 14, 2026
Mid-Morning
70°F 21°C
Scattered Showers
Mid-Afternoon
82°F 28°C
Light Showers
Early-Evening
83°F 29°C
Sunny
Warm and summery around 82°F 28°C (feels like 88°F 31°C), periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds out of the SSW at 12 mph 19 km/h.
Tuesday, September 15, 2026
Mid-Morning
67°F 19°C
Scattered Showers
Mid-Afternoon
71°F 22°C
Scattered Showers
Early-Evening
67°F 19°C
Overcast
Enjoyable around 71°F 22°C, scattered downpours possible, with steady humidity and barometric pressure rising. Winds shifting from the WNW to the NNW at 7 mph 11 km/h.
Wednesday, September 16, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
70°F 21°C
Sunny
Mild temperatures up to 73°F 23°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds turning from the E to the SE at 8 mph 13 km/h.
Thursday, September 17, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
68°F 20°C
Partly Cloudy
Early-Evening
64°F 18°C
Partly Cloudy
Mild with a high of 68°F 20°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds switching from the S to the SSE at 8 mph 12 km/h.
Friday, September 18, 2026
Mid-Morning
63°F 17°C
Scattered Showers
Mid-Afternoon
62°F 17°C
Overcast
Early-Evening
60°F 16°C
Light Showers
Comfortable at 62°F 17°C, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds moving from the S to the W at 7 mph 10 km/h.
Saturday, September 19, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
56°F 14°C
Overcast
Early-Evening
53°F 12°C
Overcast
Crisp with a high near 56°F 14°C, overcast throughout the day, with steady humidity and barometric pressure rising. Winds decreasing from SE 16 mph 26 km/h to NE 8 mph 12 km/h.
Sunday, September 20, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
60°F 16°C
Overcast
Early-Evening
56°F 13°C
Partly Cloudy
Refreshing around 60°F 16°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds shifting from the E to the ENE at 4 mph 7 km/h.
Monday, September 21, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
67°F 20°C
Sunny
Early-Evening
62°F 17°C
Sunny
Mildly cool near 67°F 20°C, sunny throughout the day, with steady humidity and steady pressure.
Spring Valley, IL Weather Radar Map
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