Mattoon, IL

Right Now
82°
Fair
  • Humidity: 82%
  • Feels Like: 89°
  • Heat Index: 89°
  • Wind: 7 mph
  • Wind Chill: 82°
  • UV Index: 0 Low
  • Sunrise: 05:25:39 AM
  • Sunset: 08:23:25 PM
  • Dew Point: 82°
  • Visibility: 10 mi

Today

Generally clear. Warm and humid. Low around 75F. Winds SSW at 5 to 10 mph.

Tonight

Generally clear. Warm and humid. Low around 75F. Winds SSW at 5 to 10 mph.

Tomorrow

Intervals of clouds and sunshine. A stray shower or thunderstorm is possible. High 93F. Winds SW at 10 to 15 mph.

Weather Alert

...DANGEROUS COMBINATION OF HIGH HEAT AND HUMIDITY EXPECTED
THROUGH MONDAY...

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 7 PM CDT MONDAY...

* TEMPERATURE...HIGH TEMPERATURES WILL BE IN THE LOW TO MID 90S
THIS AFTERNOON AND MONDAY. THESE TEMPERATURES COMBINED WITH
DEWPOINTS IN THE LOW TO MID 70S, WILL HAVE HEAT INDICES PEAKING
FROM 100 TO 108 DEGREES EACH AFTERNOON.

* TIMING...THIS AFTERNOON THROUGH EARLY MONDAY EVENING.

* IMPACTS...HEAT ILLNESSES DUE TO PROLONGED OPPRESSIVE HEAT AND
HUMIDITY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HEAT ADVISORY MEANS THAT A PERIOD OF HOT TEMPERATURES IS
EXPECTED. THE COMBINATION OF HOT TEMPERATURES AND HIGH HUMIDITY
WILL COMBINE TO CREATE A SITUATION IN WHICH HEAT ILLNESSES ARE
POSSIBLE. DRINK PLENTY OF WATER, WEAR LIGHT WEIGHT AND LOOSE
FITTING CLOTHING, STAY IN AN AIR-CONDITIONED ROOM IF POSSIBLE,
STAY OUT OF THE SUN AND TAKE FREQUENT BREAKS. CHECK UP ON
RELATIVES AND NEIGHBORS, ESPECIALLY THE ELDERLY. CHILDREN AND
PETS SHOULD NEVER BE LEFT UNATTENDED IN VEHICLES, AS INTERIORS CAN
REACH LETHAL TEMPERATURES IN MINUTES. KNOW THE SIGNS AND SYMPTOMS
OF HEAT EXHAUSTION AND HEAT STROKE. HEAT STROKE BEGINS WHEN THE
CORE BODY TEMPERATURE REACHES AROUND 104 DEGREES.

&&

Next 12 Hours

Time
Temp
Precip
11 PM
81°
0%
11 PM
81°

Wind: SSW @ 7mph

Precip: 0% Chance

Humidity: 81%

Wind Chill: 81°

Heat Index: 88°

UV Index: 0 Low

Visibility: 10 mi

12 AM
80°
0%
12 AM
80°

Wind: SSW @ 8mph

Precip: 0% Chance

Humidity: 81%

Wind Chill: 80°

Heat Index: 86°

UV Index: 0 Low

Visibility: 10 mi

1 AM
79°
0%
1 AM
79°

Wind: SSW @ 8mph

Precip: 0% Chance

Humidity: 82%

Wind Chill: 79°

Heat Index: 85°

UV Index: 0 Low

Visibility: 10 mi

2 AM
78°
0%
2 AM
78°

Wind: SSW @ 7mph

Precip: 0% Chance

Humidity: 82%

Wind Chill: 78°

Heat Index: 78°

UV Index: 0 Low

Visibility: 10 mi

3 AM
77°
2%
3 AM
77°

Wind: SSW @ 7mph

Precip: 2% Chance

Humidity: 83%

Wind Chill: 77°

Heat Index: 77°

UV Index: 0 Low

Visibility: 9 mi

4 AM
77°
4%
4 AM
77°

Wind: SSW @ 6mph

Precip: 4% Chance

Humidity: 85%

Wind Chill: 77°

Heat Index: 77°

UV Index: 0 Low

Visibility: 9 mi

5 AM
76°
6%
5 AM
76°

Wind: SSW @ 7mph

Precip: 6% Chance

Humidity: 87%

Wind Chill: 76°

Heat Index: 76°

UV Index: 0 Low

Visibility: 8 mi

6 AM
75°
7%
6 AM
75°

Wind: SSW @ 6mph

Precip: 7% Chance

Humidity: 89%

Wind Chill: 75°

Heat Index: 80°

UV Index: 0 Low

Visibility: 8 mi

7 AM
78°
6%
7 AM
78°

Wind: SSW @ 7mph

Precip: 6% Chance

Humidity: 86%

Wind Chill: 78°

Heat Index: 84°

UV Index: 0 Low

Visibility: 9 mi

8 AM
82°
4%
8 AM
82°

Wind: SW @ 9mph

Precip: 4% Chance

Humidity: 79%

Wind Chill: 82°

Heat Index: 89°

UV Index: 1 Low

Visibility: 10 mi

9 AM
84°
3%
9 AM
84°

Wind: SW @ 9mph

Precip: 3% Chance

Humidity: 73%

Wind Chill: 84°

Heat Index: 93°

UV Index: 3 Moderate

Visibility: 10 mi

10 AM
86°
1%
10 AM
86°

Wind: SW @ 11mph

Precip: 1% Chance

Humidity: 68%

Wind Chill: 86°

Heat Index: 95°

UV Index: 5 Moderate

Visibility: 10 mi