Griffith Lake, IL 14 Day Weather
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Griffith Lake, IL Weather Forecast


Griffith Lake, IL Weather Forecast Dated: 1157 AM Tue Sep 22 2026
Expect a very warm period with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, September 22, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
72°F 22°C
Sunny
Warm and summery near 81°F 27°C, sunny throughout the day, with steady humidity and steady pressure. Winds out of the NE at 9 mph 14 km/h. Gusts up to 20 mph 33 km/h.
Wednesday, September 23, 2026
Mid-Morning
65°F 18°C
Cloudy
Mid-Afternoon
72°F 22°C
Cloudy
Early-Evening
70°F 21°C
Cloudy
Comfortable with temperatures reaching 72°F 22°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds blowing from the N at 11 mph 17 km/h.
Thursday, September 24, 2026
Mid-Morning
63°F 17°C
Partly Cloudy
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
73°F 23°C
Partly Cloudy
Enjoyable around 77°F 25°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds NE at 12 mph 19 km/h.
Friday, September 25, 2026
Mid-Morning
62°F 17°C
Overcast
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
69°F 21°C
Sunny
Mild temperatures up to 76°F 25°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure. Winds swinging from the E to the NE at 8 mph 13 km/h.
Saturday, September 26, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
71°F 22°C
Scattered Showers
Early-Evening
66°F 19°C
Light Showers
Mild with a high of 71°F 22°C, scattered downpours possible, with increasing humidity and steady pressure. Winds shifting from the SE to the E at 8 mph 13 km/h.
Sunday, September 27, 2026
Mid-Morning
60°F 16°C
Light Showers
Mid-Afternoon
71°F 21°C
Light Showers
Early-Evening
73°F 23°C
Overcast
Pleasant near 71°F 21°C, showers through the afternoon, tapering off by evening, with lower humidity and steady pressure. Winds turning from the SSW to the SE at 6 mph 10 km/h.
Monday, September 28, 2026
Mid-Morning
70°F 21°C
Cloudy
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
75°F 24°C
Partly Cloudy
Comfortable with temperatures reaching 77°F 25°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the SSE to the ESE at 7 mph 11 km/h.
Tuesday, September 29, 2026
Mid-Morning
72°F 22°C
Overcast
Mid-Afternoon
87°F 31°C
Overcast
Early-Evening
82°F 28°C
Overcast
Quite warm around 87°F 31°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds blowing from the SSW at 14 mph 23 km/h. Gusts up to 25 mph 40 km/h.
Wednesday, September 30, 2026
Mid-Morning
78°F 26°C
Overcast
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
81°F 27°C
Sunny
Hot temperatures near 91°F 33°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and steady pressure. Winds decreasing from SSW 17 mph 28 km/h to NNW 9 mph 15 km/h.
Thursday, October 1, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
78°F 26°C
Sunny
Early-Evening
70°F 21°C
Overcast
Mild with a high of 78°F 26°C, sunny in the morning, cloudy in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds out of the ENE at 8 mph 13 km/h.
Friday, October 2, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
72°F 23°C
Overcast
Pleasant near 79°F 26°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds turning from the ESE to the E at 7 mph 12 km/h.
Saturday, October 3, 2026
Mid-Morning
69°F 20°C
Overcast
Mid-Afternoon
71°F 21°C
Overcast
Early-Evening
70°F 21°C
Scattered Showers
Comfortable with temperatures reaching 71°F 21°C, locally heavy downpours at times, with increasing humidity and steady pressure. Winds switching from the S to the ESE at 10 mph 17 km/h. Gusts up to 21 mph 33 km/h.
Sunday, October 4, 2026
Mid-Morning
72°F 22°C
Scattered Showers
Mid-Afternoon
93°F 34°C
Scattered Showers
Early-Evening
85°F 29°C
Sunny
Sizzling hot with 93°F 34°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds out of the SSW at 15 mph 24 km/h. Gusts up to 20 mph 33 km/h.
Monday, October 5, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
86°F 30°C
Partly Cloudy
Early-Evening
76°F 24°C
Light Showers
Quite warm reaching 86°F 30°C, feeling like 89°F 31°C during peak afternoon, mainly dry until evening showers arrive, with increasing humidity and steady pressure. Winds tapering down from SW 15 mph 24 km/h to WNW 7 mph 12 km/h.
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