Summit, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Summit now
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Summit weather by the hour
Summit weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Summit.
This week in Summit
Sunrise, sunset and moon in Summit
What is the weather usually like in Summit?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 19°F average low
- 34.4 inprecipitation per year · 875 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Summit: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station CHICAGO MIDWAY AP, IL US (USW00014819), adjusted for the elevation of Summit.
Summit weather month by month
Sunrise and sunset in Summit through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:14 AM | 4:47 PM | 9 h 32 min |
| February | 6:44 AM | 5:25 PM | 10 h 41 min |
| March | 7:01 AM | 6:59 PM | 11 h 58 min |
| April | 6:09 AM | 7:33 PM | 13 h 24 min |
| May | 5:29 AM | 8:05 PM | 14 h 36 min |
| June | 5:14 AM | 8:29 PM | 15 h 15 min |
| July | 5:28 AM | 8:26 PM | 14 h 57 min |
| August | 5:58 AM | 7:52 PM | 13 h 54 min |
| September | 6:30 AM | 7:02 PM | 12 h 31 min |
| October | 7:02 AM | 6:11 PM | 11 h 9 min |
| November | 6:39 AM | 4:32 PM | 9 h 52 min |
| December | 7:10 AM | 4:22 PM | 9 h 12 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Summit?
Summit has a hot-summer humid continental climate. The warmest month is July, with an average high of 85°F (29°C), and the coldest is January, with average lows of 19°F (-7°C).
It gets about 34.4 inches (875 mm) of precipitation a year. The wettest month is May and the driest is February.
The best time to visit Summit is June to September. At 614 ft of elevation, nights are mild most of the year. 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 Summit
Weather in towns near Summit
Questions about the weather in Summit
What is the hottest month in Summit?
July, with an average high of 85°F (29°C).
What is the coldest month in Summit?
January, with an average low of 19°F (-7°C).
How much does it rain in Summit?
About 34.4 inches (875 mm) a year; the wettest month is May.
Does it snow in Summit?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Summit?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Summit have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Summit in November?
Highs average 49°F and lows 35°F, with about 2.4 inches of precipitation.
What time is sunrise in Summit?
Around 6:39 AM in mid-November, and sunset around 4:32 PM. Today’s exact times are shown above.
Where does this Summit weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Summit.
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