Grant Lake, MO 14 Day Weather
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Grant Lake, MO Weather Forecast


Grant Lake, MO Weather Forecast Dated: 454 AM Fri Sep 18 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. Isolated storms at times.
Friday, September 18, 2026
Mid-Morning
77°F 25°C
Scattered Showers
Mid-Afternoon
92°F 33°C
Sunny
Early-Evening
88°F 31°C
Sunny
Sizzling hot near 92°F 33°C with a heat index reaching 97°F 36°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. A stray shower or storm late in the day. Winds turning from the SSE to the S at 15 mph 23 km/h. Gusts up to 30 mph 47 km/h.
Saturday, September 19, 2026
Mid-Morning
78°F 26°C
Scattered Showers
Mid-Afternoon
93°F 34°C
Sunny
Early-Evening
84°F 29°C
Nearby Thunderstorms
Hot and sweltering around 93°F 34°C (heat index 96°F 35°C), scattered downpours possible, with steady humidity and steady pressure. Winds switching from the S to the WSW at 9 mph 14 km/h.
Sunday, September 20, 2026
Mid-Morning
69°F 20°C
Overcast
Mid-Afternoon
72°F 22°C
Scattered Showers
Early-Evening
66°F 19°C
Light Showers
Enjoyable around 72°F 22°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the NNW to the N at 10 mph 16 km/h.
Monday, September 21, 2026
Mid-Morning
59°F 15°C
Scattered Showers
Mid-Afternoon
62°F 17°C
Scattered Showers
Early-Evening
61°F 16°C
Scattered Showers
Cool with a high near 62°F 17°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds swinging from the NNW to the N at 10 mph 16 km/h.
Tuesday, September 22, 2026
Mid-Morning
57°F 14°C
Overcast
Mid-Afternoon
60°F 16°C
Overcast
Early-Evening
59°F 15°C
Overcast
Refreshing around 60°F 16°C, overcast throughout the day, with steady humidity and steady pressure. Winds shifting from the NNE to the ENE at 7 mph 12 km/h.
Wednesday, September 23, 2026
Mid-Morning
57°F 14°C
Light Fog
Mid-Afternoon
67°F 20°C
Overcast
Early-Evening
66°F 19°C
Overcast
Mildly cool near 67°F 20°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Thursday, September 24, 2026
Mid-Morning
57°F 14°C
Light Showers
Mid-Afternoon
62°F 17°C
Light Showers
Early-Evening
64°F 18°C
Overcast
Comfortable at 62°F 17°C, intermittent showers through midday, easing by evening, with lower humidity and steady pressure.
Friday, September 25, 2026
Mid-Morning
63°F 17°C
Light Fog
Mid-Afternoon
71°F 22°C
Scattered Showers
Early-Evening
71°F 22°C
Scattered Showers
Enjoyable around 71°F 22°C, scattered downpours possible, with lower humidity and barometric pressure falling.
Saturday, September 26, 2026
Mid-Morning
59°F 15°C
Light Showers
Mid-Afternoon
66°F 19°C
Overcast
Early-Evening
67°F 20°C
Overcast
Refreshing around 66°F 19°C, morning showers, giving way to clearing skies, with lower humidity and barometric pressure falling. Winds SE at 13 mph 20 km/h. Gusts up to 28 mph 44 km/h.
Sunday, September 27, 2026
Mid-Morning
64°F 18°C
Scattered Showers
Mid-Afternoon
77°F 25°C
Scattered Showers
Early-Evening
79°F 26°C
Cloudy
Mild with a high of 77°F 25°C, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure falling. Winds out of the S at 16 mph 26 km/h. Gusts up to 32 mph 52 km/h.
Monday, September 28, 2026
Mid-Morning
71°F 21°C
Light Showers
Mid-Afternoon
83°F 29°C
Overcast
Early-Evening
80°F 27°C
Overcast
Warm and summery near 83°F 29°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds moving from the S to the SSE at 11 mph 18 km/h. Gusts up to 24 mph 38 km/h.
Tuesday, September 29, 2026
Mid-Morning
73°F 23°C
Scattered Showers
Mid-Afternoon
85°F 29°C
Sunny
Early-Evening
79°F 26°C
Overcast
Balmy with temperatures reaching 85°F 29°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds swinging from the SSE to the SW at 9 mph 15 km/h.
Wednesday, September 30, 2026
Mid-Morning
60°F 16°C
Light Showers
Mid-Afternoon
58°F 14°C
Light Showers
Early-Evening
60°F 15°C
Overcast
Refreshing around 58°F 14°C, intermittent showers through midday, easing by evening, with lower humidity and steady pressure. Winds shifting from the ESE to the WSW at 11 mph 17 km/h. Gusts up to 25 mph 40 km/h.
Thursday, October 1, 2026
Mid-Morning
51°F 10°C
Overcast
Mid-Afternoon
57°F 14°C
Sunny
Early-Evening
55°F 13°C
Sunny
Cool and brisk at 57°F 14°C, overcast in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the N to the ESE at 8 mph 12 km/h.
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