Chatham, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Chatham now
Loading the National Weather Service forecast…
Chatham weather by the hour
Chatham weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Chatham.
This week in Chatham
Sunrise, sunset and moon in Chatham
What is the weather usually like in Chatham?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 85°F average high
- Januarycoldest month · 19°F average low
- 40.4 inprecipitation per year · 1,027 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Chatham: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station SPRINGFIELD #2, IL US (USC00118186), adjusted for the elevation of Chatham.
Chatham weather month by month
Sunrise and sunset in Chatham through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:16 AM | 5:00 PM | 9 h 44 min |
| February | 6:49 AM | 5:36 PM | 10 h 47 min |
| March | 7:08 AM | 7:06 PM | 11 h 58 min |
| April | 6:19 AM | 7:38 PM | 13 h 18 min |
| May | 5:42 AM | 8:07 PM | 14 h 25 min |
| June | 5:28 AM | 8:29 PM | 15 h 1 min |
| July | 5:42 AM | 8:27 PM | 14 h 45 min |
| August | 6:09 AM | 7:56 PM | 13 h 46 min |
| September | 6:38 AM | 7:08 PM | 12 h 30 min |
| October | 7:07 AM | 6:21 PM | 11 h 13 min |
| November | 6:42 AM | 4:44 PM | 10 h 2 min |
| December | 7:11 AM | 4:36 PM | 9 h 25 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Chatham?
Chatham has a hot-summer humid continental climate. The warmest month is July, with an average high of 85°F (30°C), and the coldest is January, with average lows of 19°F (-7°C).
It gets about 40.4 inches (1,027 mm) of precipitation a year. The wettest month is May and the driest is January.
The best time to visit Chatham is May–June and August–September. At 600 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 Chatham
Weather in towns near Chatham
Questions about the weather in Chatham
What is the hottest month in Chatham?
July, with an average high of 85°F (30°C).
What is the coldest month in Chatham?
January, with an average low of 19°F (-7°C).
How much does it rain in Chatham?
About 40.4 inches (1,027 mm) a year; the wettest month is May.
Does it snow in Chatham?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Chatham?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Chatham have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Chatham in November?
Highs average 53°F and lows 33°F, with about 3.1 inches of precipitation.
What time is sunrise in Chatham?
Around 6:42 AM in mid-November, and sunset around 4:44 PM. Today’s exact times are shown above.
Where does this Chatham weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Chatham.
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