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Flat Rock IL Weather - Clear - 78°F
Clear
78°F
Updated 12:09 am
Feels Like 82°F
Humidity 78%
Wind SSW 5 mph
Barometer  29.99 in
Dew Point 71°F
Flat Rock IL Weather - Clear - 26°C
Clear
26°C
Updated 12:09 am
Feels Like 28°C
Humidity 78%
Wind SSW 8 km/h
Barometer  101.5 kPa
Dew Point 22°C
Flat Rock, IL Weather and Current Conditionsflat rock il weather forecast

Flat Rock, IL Weather Forecast

Flat Rock Illinois WeatherFlat Rock, Illinois Weather Weather Forecast
Here is the API 14 day weather forecast for Flat Rock, Illinois. Note: The 7-day weather forecast for Flat Rock, IL is the most reliable and accurate weather forecast. This template should only be used as a probable scenario. Forecasting weather beyond the next 7 days is a challenge.
Flat Rock, IL Weather Forecast Dated: 1209 AM Thu Sep 03 2026 (Flat Rock Time)
Expect a hot stretch with plenty of sunshine and occasional showers over the coming period. comfortable humidity and no major pressure swings will dominate.

Thursday, September 3, 2026

Mid-Morning
Flat Rock Weather - 2026-09-03 - Morning - Sunny
84°F 29°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-03 - Afternoon - Cloudy
101°F 38°C
Cloudy
Early-Evening
Flat Rock Weather - 2026-09-03 - Evening - Sunny
90°F 33°C
Sunny
Scorching hot near 101°F 38°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure.

Friday, September 4, 2026

Mid-Morning
Flat Rock Weather - 2026-09-04 - Morning - Partly Cloudy
88°F 31°C
Partly Cloudy
Mid-Afternoon
Flat Rock Weather - 2026-09-04 - Afternoon - Sunny
102°F 39°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-04 - Evening - Partly Cloudy
93°F 34°C
Partly Cloudy
Sweltering temperatures near 102°F 39°C with a heat index of 105°F 40°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds turning from the WSW to the ESE at 9 mph 14 km/h.

Saturday, September 5, 2026

Mid-Morning
Flat Rock Weather - 2026-09-05 - Morning - Sunny
90°F 32°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-05 - Afternoon - Sunny
102°F 39°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-05 - Evening - Sunny
91°F 33°C
Sunny
Dangerously hot with a high of 102°F 39°C (heat index near 106°F 41°C), sunny through the afternoon, turning partly cloudy this evening, with increasing humidity and steady pressure. Winds switching from the WNW to the SSE at 7 mph 11 km/h.

Sunday, September 6, 2026

Mid-Morning
Flat Rock Weather - 2026-09-06 - Morning - Sunny
80°F 26°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-06 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-06 - Evening - Partly Cloudy
79°F 26°C
Partly Cloudy
Hot temperatures near 90°F 32°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds NE at 15 mph 23 km/h. Gusts up to 22 mph 35 km/h.

Monday, September 7, 2026

Mid-Morning
Flat Rock Weather - 2026-09-07 - Morning - Sunny
73°F 23°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-07 - Afternoon - Overcast
92°F 33°C
Overcast
Early-Evening
Flat Rock Weather - 2026-09-07 - Evening - Sunny
81°F 27°C
Sunny
Very hot with a high of 92°F 33°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds out of the ENE at 8 mph 12 km/h.

Tuesday, September 8, 2026

Mid-Morning
Flat Rock Weather - 2026-09-08 - Morning - Partly Cloudy
82°F 28°C
Partly Cloudy
Mid-Afternoon
Flat Rock Weather - 2026-09-08 - Afternoon - Overcast
101°F 38°C
Overcast
Early-Evening
Flat Rock Weather - 2026-09-08 - Evening - Partly Cloudy
94°F 34°C
Partly Cloudy
Sweltering heat reaching 101°F 38°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds shifting from the SSW to the S at 14 mph 21 km/h. Gusts up to 24 mph 39 km/h.

Wednesday, September 9, 2026

Mid-Morning
Flat Rock Weather - 2026-09-09 - Morning - Partly Cloudy
89°F 31°C
Partly Cloudy
Mid-Afternoon
Flat Rock Weather - 2026-09-09 - Afternoon - Sunny
105°F 40°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-09 - Evening - Sunny
90°F 33°C
Sunny
Dangerously hot temperatures around 105°F 40°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds WSW at 15 mph 24 km/h.

Thursday, September 10, 2026

Mid-Morning
Flat Rock Weather - 2026-09-10 - Morning - Sunny
87°F 31°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-10 - Afternoon - Partly Cloudy
99°F 37°C
Partly Cloudy
Early-Evening
Flat Rock Weather - 2026-09-10 - Evening - Sunny
88°F 31°C
Sunny
Hot and sweltering around 99°F 37°C (heat index 103°F 39°C), sunny through the afternoon, turning partly cloudy this evening, with increasing humidity and steady pressure. Winds switching from the WNW to the NE at 9 mph 14 km/h.

Friday, September 11, 2026

Mid-Morning
Flat Rock Weather - 2026-09-11 - Morning - Sunny
86°F 30°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-11 - Afternoon - Sunny
103°F 40°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-11 - Evening - Cloudy
97°F 37°C
Cloudy
Scorching hot near 103°F 40°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and barometric pressure falling. Winds moving from the SSW to the S at 12 mph 19 km/h. Gusts up to 23 mph 37 km/h.

Saturday, September 12, 2026

Mid-Morning
Flat Rock Weather - 2026-09-12 - Morning - Sunny
89°F 32°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-12 - Afternoon - Sunny
103°F 40°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-12 - Evening - Sunny
97°F 37°C
Sunny
Sweltering heat reaching 103°F 40°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds swinging from the SW to the SSW at 13 mph 21 km/h. Gusts up to 24 mph 38 km/h.

Sunday, September 13, 2026

Mid-Morning
Flat Rock Weather - 2026-09-13 - Morning - Sunny
91°F 33°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-13 - Afternoon - Sunny
105°F 41°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-13 - Evening - Partly Cloudy
96°F 36°C
Partly Cloudy
Dangerously hot temperatures around 105°F 41°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds out of the WSW at 15 mph 24 km/h.

Monday, September 14, 2026

Mid-Morning
Flat Rock Weather - 2026-09-14 - Morning - Light Showers
76°F 24°C
Light Showers
Mid-Afternoon
Flat Rock Weather - 2026-09-14 - Afternoon - Sunny
95°F 35°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-14 - Evening - Sunny
85°F 29°C
Sunny
Very hot with a high of 95°F 35°C, feeling closer to 98°F 36°C in the humidity, morning showers, giving way to clearing skies, with lower humidity and steady pressure. Winds blowing from the WNW at 8 mph 13 km/h.

Tuesday, September 15, 2026

Mid-Morning
Flat Rock Weather - 2026-09-15 - Morning - Sunny
79°F 26°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-15 - Afternoon - Sunny
97°F 36°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-15 - Evening - Sunny
85°F 29°C
Sunny
Sizzling hot with 97°F 36°C, sunny throughout the day, with lower humidity and steady pressure. Winds switching from the SE to the ENE at 9 mph 14 km/h.

Wednesday, September 16, 2026

Mid-Morning
Flat Rock Weather - 2026-09-16 - Morning - Sunny
79°F 26°C
Sunny
Mid-Afternoon
Flat Rock Weather - 2026-09-16 - Afternoon - Sunny
97°F 36°C
Sunny
Early-Evening
Flat Rock Weather - 2026-09-16 - Evening - Sunny
87°F 31°C
Sunny
Hot temperatures near 97°F 36°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the ESE to the ENE at 9 mph 14 km/h.

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