Glen Carbon, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Glen Carbon now
Loading the National Weather Service forecast…
Glen Carbon weather by the hour
Glen Carbon weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Glen Carbon.
This week in Glen Carbon
Sunrise, sunset and moon in Glen Carbon
What is the weather usually like in Glen Carbon?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 87°F average high
- Januarycoldest month · 22°F average low
- 41.9 inprecipitation per year · 1,064 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Glen Carbon: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station ALTON - MELVIN PRICE L&D, IL US (USC00110137), adjusted for the elevation of Glen Carbon.
Glen Carbon weather month by month
Sunrise and sunset in Glen Carbon through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:14 AM | 5:03 PM | 9 h 48 min |
| February | 6:49 AM | 5:38 PM | 10 h 49 min |
| March | 7:09 AM | 7:08 PM | 11 h 58 min |
| April | 6:21 AM | 7:38 PM | 13 h 16 min |
| May | 5:45 AM | 8:06 PM | 14 h 20 min |
| June | 5:32 AM | 8:28 PM | 14 h 55 min |
| July | 5:46 AM | 8:25 PM | 14 h 39 min |
| August | 6:12 AM | 7:56 PM | 13 h 43 min |
| September | 6:40 AM | 7:09 PM | 12 h 29 min |
| October | 7:08 AM | 6:23 PM | 11 h 14 min |
| November | 6:41 AM | 4:47 PM | 10 h 6 min |
| December | 7:09 AM | 4:40 PM | 9 h 31 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Glen Carbon?
Glen Carbon has a hot-summer humid continental climate. The warmest month is July, with an average high of 87°F (31°C), and the coldest is January, with average lows of 22°F (-6°C).
It gets about 41.9 inches (1,064 mm) of precipitation a year. The wettest month is May and the driest is February.
The best time to visit Glen Carbon is May–June and August–September. 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 Glen Carbon
Weather in towns near Glen Carbon
Questions about the weather in Glen Carbon
What is the hottest month in Glen Carbon?
July, with an average high of 87°F (31°C).
What is the coldest month in Glen Carbon?
January, with an average low of 22°F (-6°C).
How much does it rain in Glen Carbon?
About 41.9 inches (1,064 mm) a year; the wettest month is May.
Does it snow in Glen Carbon?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Glen Carbon?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Glen Carbon have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Glen Carbon in November?
Highs average 54°F and lows 37°F, with about 3.4 inches of precipitation.
What time is sunrise in Glen Carbon?
Around 6:41 AM in mid-November, and sunset around 4:47 PM. Today’s exact times are shown above.
Where does this Glen Carbon weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Glen Carbon.
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