Foster Lake, MO 14 Day Weather
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Foster Lake, MO Weather Forecast


Foster Lake, MO Weather Forecast Dated: 333 AM Fri Sep 18 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Friday, September 18, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
95°F 35°C
Partly Cloudy
Early-Evening
89°F 32°C
Overcast
Very hot with temperatures reaching 95°F 35°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
80°F 27°C
Overcast
Mid-Afternoon
93°F 34°C
Overcast
Early-Evening
89°F 31°C
Overcast
Hot and sweltering around 93°F 34°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds turning from the SW to the SE at 5 mph 8 km/h.
Sunday, September 20, 2026
Mid-Morning
77°F 25°C
Overcast
Mid-Afternoon
93°F 34°C
Overcast
Early-Evening
85°F 30°C
Cloudy
Sizzling hot with 93°F 34°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the W to the ENE at 5 mph 8 km/h.
Monday, September 21, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
77°F 25°C
Scattered Showers
Early-Evening
71°F 22°C
Sunny
Mild temperatures up to 77°F 25°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds moving from the ENE to the NW at 8 mph 14 km/h.
Tuesday, September 22, 2026
Mid-Morning
60°F 16°C
Partly Cloudy
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
65°F 18°C
Partly Cloudy
Mild with a high of 73°F 23°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the N to the NNE at 8 mph 13 km/h.
Wednesday, September 23, 2026
Mid-Morning
59°F 15°C
Fog
Mid-Afternoon
74°F 24°C
Sunny
Early-Evening
70°F 22°C
Overcast
Pleasant near 74°F 24°C, cloudy through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure.
Thursday, September 24, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
62°F 17°C
Overcast
Early-Evening
65°F 18°C
Overcast
Comfortable at 62°F 17°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.
Friday, September 25, 2026
Mid-Morning
64°F 18°C
Light Fog
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
72°F 23°C
Overcast
Enjoyable around 77°F 25°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds shifting from the NE to the E at 5 mph 7 km/h.
Saturday, September 26, 2026
Mid-Morning
61°F 16°C
Cloudy
Mid-Afternoon
67°F 20°C
Cloudy
Early-Evening
67°F 19°C
Sunny
Refreshing around 67°F 20°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds turning from the E to the ESE at 8 mph 13 km/h. Gusts up to 20 mph 32 km/h.
Sunday, September 27, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
87°F 30°C
Partly Cloudy
Early-Evening
80°F 27°C
Sunny
Very warm with a high of 87°F 30°C, cloudy in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and barometric pressure falling. Winds switching from the SSE to the SE at 9 mph 15 km/h. Gusts up to 22 mph 35 km/h.
Monday, September 28, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
90°F 32°C
Overcast
Early-Evening
83°F 28°C
Sunny
Very hot with temperatures reaching 90°F 32°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds moving from the S to the SE at 10 mph 17 km/h. Gusts up to 23 mph 37 km/h.
Tuesday, September 29, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
88°F 31°C
Sunny
Early-Evening
79°F 26°C
Sunny
Balmy with temperatures reaching 88°F 31°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the SSE to the SE at 7 mph 11 km/h.
Wednesday, September 30, 2026
Mid-Morning
76°F 24°C
Sunny
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
76°F 25°C
Overcast
Quite warm around 89°F 32°C, partly cloudy in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds picking up from SW at 3 mph 5 km/h to N at 11 mph 17 km/h. Gusts up to 22 mph 35 km/h.
Thursday, October 1, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
66°F 19°C
Cloudy
Early-Evening
59°F 15°C
Overcast
Mildly cool near 66°F 19°C, overcast throughout the day, with lower humidity and steady pressure. Winds turning from the N to the ESE at 10 mph 17 km/h. Gusts up to 21 mph 34 km/h.
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