Mattoon, IL weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Mattoon now
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Mattoon weather by the hour
Mattoon weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Mattoon.
This week in Mattoon
Sunrise, sunset and moon in Mattoon
What is the weather usually like in Mattoon?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 86°F average high
- Januarycoldest month · 20°F average low
- 41.3 inprecipitation per year · 1,049 mm
- 14.5 insnowfall per year · 37 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Mattoon: May–June and August–September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station MATTOON, IL US (USC00115430), adjusted for the elevation of Mattoon.
Mattoon weather month by month
Sunrise and sunset in Mattoon through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 7:10 AM | 4:55 PM | 9 h 45 min |
| February | 6:43 AM | 5:31 PM | 10 h 47 min |
| March | 7:02 AM | 7:01 PM | 11 h 58 min |
| April | 6:14 AM | 7:32 PM | 13 h 18 min |
| May | 5:37 AM | 8:02 PM | 14 h 24 min |
| June | 5:24 AM | 8:23 PM | 14 h 59 min |
| July | 5:37 AM | 8:21 PM | 14 h 43 min |
| August | 6:04 AM | 7:50 PM | 13 h 45 min |
| September | 6:33 AM | 7:03 PM | 12 h 29 min |
| October | 7:02 AM | 6:15 PM | 11 h 13 min |
| November | 6:36 AM | 4:39 PM | 10 h 3 min |
| December | 7:05 AM | 4:32 PM | 9 h 27 min |
Times for the 15th of each month, local time (America/Chicago).
What is the weather like in Mattoon?
Mattoon has a hot-summer humid continental climate. The warmest month is July, with an average high of 86°F (30°C), and the coldest is January, with average lows of 20°F (-7°C).
It gets about 41.3 inches (1,049 mm) of precipitation a year. The wettest month is April and the driest is February. Snow is common: about 14 inches fall in an average year.
The best time to visit Mattoon is May–June and August–September. At 732 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 Mattoon
Weather in towns near Mattoon
Questions about the weather in Mattoon
What is the hottest month in Mattoon?
July, with an average high of 86°F (30°C).
What is the coldest month in Mattoon?
January, with an average low of 20°F (-7°C).
How much does it rain in Mattoon?
About 41.3 inches (1,049 mm) a year; the wettest month is April.
Does it snow in Mattoon?
Yes, about 14 inches of snow fall in an average year.
When is the best time to visit Mattoon?
May–June and August–September, when temperatures are most pleasant and rainy days are fewer.
What climate does Mattoon have?
Hot-summer humid continental (Köppen Dfa).
What is the weather like in Mattoon in November?
Highs average 51°F and lows 34°F, with about 3.6 inches of precipitation.
What time is sunrise in Mattoon?
Around 6:36 AM in mid-November, and sunset around 4:39 PM. Today’s exact times are shown above.
Where does this Mattoon weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Mattoon.
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