Flat Rock, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Flat Rock now
Loading the National Weather Service forecast…
Flat Rock weather by the hour
Flat Rock weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Flat Rock.
This week in Flat Rock
Sunrise, sunset and moon in Flat Rock
What is the weather usually like in Flat Rock?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 87°F average high
- Januarycoldest month · 23°F average low
- 46.3 inprecipitation per year · 1,176 mm
- 11.6 insnowfall per year · 29 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Flat Rock: May and August to October, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station PALESTINE, IL US (USC00116558), adjusted for the elevation of Flat Rock.
Flat Rock weather month by month
Sunrise and sunset in Flat Rock through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:06 AM | 4:54 PM | 9 h 48 min |
| February | 6:40 AM | 5:29 PM | 10 h 49 min |
| March | 7:00 AM | 6:58 PM | 11 h 58 min |
| April | 6:12 AM | 7:29 PM | 13 h 16 min |
| May | 5:36 AM | 7:57 PM | 14 h 21 min |
| June | 5:23 AM | 8:19 PM | 14 h 56 min |
| July | 5:36 AM | 8:17 PM | 14 h 40 min |
| August | 6:03 AM | 7:47 PM | 13 h 43 min |
| September | 6:31 AM | 7:00 PM | 12 h 29 min |
| October | 6:59 AM | 6:13 PM | 11 h 14 min |
| November | 6:32 AM | 4:38 PM | 10 h 6 min |
| December | 7:00 AM | 4:31 PM | 9 h 30 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Flat Rock?
Flat Rock has a hot-summer humid continental climate. The warmest month is July, with an average high of 87°F (30°C), and the coldest is January, with average lows of 23°F (-5°C).
It gets about 46.3 inches (1,176 mm) of precipitation a year. The wettest month is April and the driest is February. Snow is common: about 12 inches fall in an average year.
The best time to visit Flat Rock is May and August to October. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Flat Rock
Weather in towns near Flat Rock
Questions about the weather in Flat Rock
What is the hottest month in Flat Rock?
July, with an average high of 87°F (30°C).
What is the coldest month in Flat Rock?
January, with an average low of 23°F (-5°C).
How much does it rain in Flat Rock?
About 46.3 inches (1,176 mm) a year; the wettest month is April.
Does it snow in Flat Rock?
Yes, about 12 inches of snow fall in an average year.
When is the best time to visit Flat Rock?
May and August to October, when temperatures are most pleasant and rainy days are fewer.
What climate does Flat Rock have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Flat Rock in November?
Highs average 54°F and lows 35°F, with about 3.6 inches of precipitation.
What time is sunrise in Flat Rock?
Around 6:32 AM in mid-November, and sunset around 4:38 PM. Today’s exact times are shown above.
Where does this Flat Rock weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Flat Rock.
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