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Mattoon, United States Snapshot 2026
Where is Mattoon?
Mattoon, United States
- Continent
- Americas
- Country
- United States
- City
- Mattoon
- Population
- 18.1K
- Elevation
- 224 m
- Coordinates
- 39.48°, -88.37°
Mattoon is a city in United States with a population of approximately 18.1K. Average temperatures range from -4°C (24°F) in January to 29°C (85°F) in July. The best time to visit is May, June, August, September, October. The city sits at an elevation of 224 m above sea level.
Time in Mattoon right now
Open full time & time zone page 12:46 46
Monday, June 15, 2026
IANA time zone
America/Chicago
Daylight saving
DST in effect
CST / CDT
Next DST change
November 1
backward -1h
Live weather in Mattoon
Daylight in Mattoon today
View full sunrise & sunset page Sunrise
Sunset
Day length
14h 56m
Climate normals for Mattoon
Long-term monthly averages based on historical data.
January
Poor 
February
Poor March
Poor April
Fair May best
Excellent June best
Excellent July
Good August best
Excellent September best
Excellent October best
Good November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 3°C / -4°C | -1°C / -9°C | 9days (74 mm) Wet | 5.3h Fair | 70% Muggy | 2.5 Moderate | Poor | View Details |
| February | 7°C / -3°C | 3°C / -8°C | 8days (69 mm) Wet | 6.7h Fair | 68% Muggy | 3.7 Moderate | Poor | View Details |
| March | 13°C / 3°C | 10°C / -2°C | 12days (112 mm) Wet | 7.5h Good | 66% Muggy | 4.8 Moderate | Poor | View Details |
| April | 18°C / 7°C | 16°C / 4°C | 12days (127 mm) Wet | 8.9h Good | 65% Muggy | 5.7 High | Fair | View Details |
| May best | 23°C / 14°C | 23°C / 12°C | 13days (109 mm) Wet | 10h Excellent | 69% Muggy | 6.9 High | Excellent | View Details |
| June best | 29°C / 19°C | 30°C / 19°C | 10days (97 mm) Wet | 11.8h Excellent | 66% Muggy | 7.3 Very High | Excellent | View Details |
| July | 29°C / 21°C | 33°C / 23°C | 12days (137 mm) Wet | 11.9h Excellent | 74% Muggy | 7.3 Very High | Good | View Details |
| August best | 28°C / 20°C | 31°C / 21°C | 9days (95 mm) Wet | 11h Excellent | 73% Muggy | 6.8 High | Excellent | View Details |
| September best | 27°C / 17°C | 28°C / 17°C | 7days (68 mm) Good | 10h Excellent | 67% Muggy | 5.7 High | Excellent | View Details |
| October best | 20°C / 11°C | 18°C / 8°C | 9days (88 mm) Wet | 7.8h Good | 66% Muggy | 4.2 Moderate | Good | View Details |
| November | 12°C / 3°C | 8°C / -1°C | 8days (73 mm) Wet | 6.5h Fair | 69% Muggy | 2.9 Moderate | Poor | View Details |
| December | 6°C / -1°C | 3°C / -6°C | 9days (67 mm) Wet | 5.4h Fair | 72% Muggy | 2.2 Moderate | Poor | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 3°C / -4°C . Feb: 7°C / -3°C . Mar: 13°C / 3°C . Apr: 18°C / 7°C . May: 23°C / 14°C . Jun: 29°C / 19°C . Jul: 29°C / 21°C . Aug: 28°C / 20°C . Sep: 27°C / 17°C . Oct: 20°C / 11°C . Nov: 12°C / 3°C . Dec: 6°C / -1°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 74 mm. Feb: 69 mm. Mar: 112 mm. Apr: 127 mm. May: 109 mm. Jun: 97 mm. Jul: 137 mm. Aug: 95 mm. Sep: 68 mm. Oct: 88 mm. Nov: 73 mm. Dec: 67 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 70%. Feb: 68%. Mar: 66%. Apr: 65%. May: 69%. Jun: 66%. Jul: 74%. Aug: 73%. Sep: 67%. Oct: 66%. Nov: 69%. Dec: 72%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 21 km/h . Feb: 22 km/h . Mar: 23 km/h . Apr: 23 km/h . May: 20 km/h . Jun: 18 km/h . Jul: 15 km/h . Aug: 15 km/h . Sep: 16 km/h . Oct: 20 km/h . Nov: 21 km/h . Dec: 21 km/h .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 4. Mar: UV 5. Apr: UV 6. May: UV 7. Jun: UV 7. Jul: UV 7. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Mattoon has a population of approximately 18.1K.
The best months to visit Mattoon are May, June, August, September, October, when temperatures are pleasant and rainfall is lower.
Mattoon receives approximately 1116mm of rainfall annually across 118 rainy days.
Mattoon is located in United States, in the Americas region.
Mattoon sits at an elevation of 224 m (735 ft) above sea level.