Flat Lake, SC 14 Day Weather
Quick Weather Clicks
Settings
Sun & Moon


Flat Lake, SC Weather Forecast


Flat Lake, SC Weather Forecast Dated: 1103 PM Sat Sep 19 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and no major pressure swings will dominate.
Saturday, September 19, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
90°F 32°C
Light Showers
Early-Evening
80°F 27°C
Scattered Showers
Sizzling hot near 90°F 32°C with a heat index reaching 96°F 35°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the NE to the E at 9 mph 13 km/h.
Sunday, September 20, 2026
Mid-Morning
75°F 24°C
Sunny
Mid-Afternoon
87°F 31°C
Overcast
Early-Evening
80°F 27°C
Overcast
Quite warm reaching 87°F 31°C, feeling like 91°F 33°C during peak afternoon, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds switching from the ENE to the SSE at 8 mph 13 km/h.
Monday, September 21, 2026
Mid-Morning
78°F 25°C
Cloudy
Mid-Afternoon
90°F 32°C
Cloudy
Early-Evening
81°F 27°C
Overcast
Very hot with a high of 90°F 32°C, feeling closer to 95°F 35°C in the humidity, cloudy through the afternoon, turning overcast this evening, with steady humidity and steady pressure. Winds increasing from the SSW at 1 mph 2 km/h to SSE at 9 mph 14 km/h.
Tuesday, September 22, 2026
Mid-Morning
76°F 25°C
Overcast
Mid-Afternoon
89°F 32°C
Overcast
Early-Evening
79°F 26°C
Sunny
Warm temperatures up to 89°F 32°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
72°F 22°C
Scattered Showers
Mid-Afternoon
72°F 22°C
Scattered Showers
Early-Evening
70°F 22°C
Overcast
Mild with a high of 72°F 22°C, scattered downpours possible, with lower humidity and steady pressure. Winds out of the NNE at 13 mph 21 km/h. Gusts up to 20 mph 32 km/h.
Thursday, September 24, 2026
Mid-Morning
65°F 18°C
Scattered Showers
Mid-Afternoon
70°F 21°C
Scattered Showers
Early-Evening
66°F 19°C
Overcast
Pleasant near 70°F 21°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds shifting from the NNE to the NE at 12 mph 19 km/h.
Friday, September 25, 2026
Mid-Morning
62°F 16°C
Sunny
Mid-Afternoon
75°F 24°C
Sunny
Early-Evening
69°F 21°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny throughout the day, with lower humidity and steady pressure. Winds NNE at 11 mph 17 km/h.
Saturday, September 26, 2026
Mid-Morning
62°F 16°C
Sunny
Mid-Afternoon
78°F 26°C
Partly Cloudy
Early-Evening
71°F 22°C
Sunny
Enjoyable around 78°F 26°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the WSW to the NE at 13 mph 22 km/h. Gusts up to 23 mph 37 km/h.
Sunday, September 27, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
72°F 22°C
Cloudy
Early-Evening
72°F 22°C
Cloudy
Mild temperatures up to 72°F 22°C, overcast in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds moving from the SW to the NNE at 13 mph 20 km/h. Gusts up to 22 mph 35 km/h.
Monday, September 28, 2026
Mid-Morning
67°F 20°C
Overcast
Mid-Afternoon
76°F 25°C
Overcast
Early-Evening
69°F 21°C
Sunny
Mild with a high of 76°F 25°C, overcast through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds swinging from the NNE to the SW at 7 mph 11 km/h.
Tuesday, September 29, 2026
Mid-Morning
62°F 17°C
Sunny
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
71°F 22°C
Partly Cloudy
Warm and summery near 80°F 27°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure.
Wednesday, September 30, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
81°F 27°C
Partly Cloudy
Early-Evening
71°F 22°C
Overcast
Balmy with temperatures reaching 81°F 27°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
74°F 24°C
Overcast
Early-Evening
72°F 23°C
Overcast
Enjoyable around 74°F 24°C, overcast throughout the day, with lower humidity and steady pressure. Winds shifting from the NE to the N at 9 mph 15 km/h.
Friday, October 2, 2026
Mid-Morning
66°F 19°C
Light Showers
Mid-Afternoon
72°F 22°C
Light Showers
Early-Evening
69°F 21°C
Light Showers
Mild temperatures up to 72°F 22°C, persistent showers off and on through the day, with steady humidity and steady pressure.
Flat Lake, SC Weather Radar Map
Use the map search tool if you want to place a location marker on the radar map...
Weather World