WATERLOO, IL 62298 Weather Forecast & Current Conditions

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EAST ST. LOUIS, IL
Current Weather

11:53 AM CDT AUG 25, 2025
Clear
73°F
Feels Like: 73°F
Dewpoint: 52°F
Rel. Hum.: 48%
Visibility: 10 miles
Wind: NNW at 14 mph, gusts to 20
Pressure: 30.17 inches
Last 72 hours

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WATERLOO, IL 62298
Weather Forecast

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THIS AFTERNOON
Partly sunny early, then becoming mostly cloudy. Highs in the mid 70s. Northwest winds 5 to 10 mph.
TONIGHT
Partly cloudy in the evening, then clearing. Lows in the lower 50s. North winds around 5 mph in the evening, becoming light and variable.
TUESDAY
Sunny. Highs in the upper 70s. Northwest winds around 5 mph.
TUESDAY NIGHT
Mostly clear. Lows around 50. Northeast winds around 5 mph in the evening, becoming light and variable.
WEDNESDAY
Mostly sunny. Highs around 80. Light and variable winds.
WEDNESDAY NIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 50s. Chance of rain 20 percent.
THURSDAY
Partly sunny. A chance of showers, mainly in the morning. Highs in the upper 70s. Chance of rain 30 percent.
THURSDAY NIGHT THROUGH SATURDAY NIGHT
Partly cloudy. Lows in the upper 50s. Highs around 80.
SUNDAY
Mostly sunny. A slight chance of showers in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.

Visible Weather Satellite
WATERLOO, IL 62298
Infrared Weather Satellite
WATERLOO, IL 62298
NEXRAD Weather Radar
WATERLOO, IL 62298

EAST ST. LOUIS, IL 3 hourly weather forecast

weather forecast created  6:00 AM MDT  8/25/2025
Monday
25 AUG 2025
WATERLOO, IL 62298 weather forecast Day 1, 12 hours 1 PM 74° 74° Mostly Cloudy 0%

0% Thunder
( 1% severe)
NNW   9 43% 50°
High 75° WATERLOO, IL 62298 weather forecast Day 1, 15 hours 4 PM 74° 74° Mostly Cloudy NNW   9 43% 50°
Mostly Cloudy



WATERLOO, IL 62298 weather forecast Day 1, 18 hours 7 PM 72° 72° Partly Cloudy 0%

0% Thunder
( 1% severe)
NNW   6 46% 50°
WATERLOO, IL 62298 weather forecast Day 1, 21 hours 10 PM 62° 63° Partly Cloudy N   2 67% 51°
Tuesday
26 AUG 2025
WATERLOO, IL 62298 weather forecast Day 2, 0 hours 1 AM 58° 59° Clear 0%

0% Thunder
( 1% severe)
N   1 77% 51°
Low 52° WATERLOO, IL 62298 weather forecast Day 2, 3 hours 4 AM 54° 54° Clear NW   1 86% 50°
High 77° WATERLOO, IL 62298 weather forecast Day 2, 6 hours 7 AM 53° 53° Clear 0%

0% Thunder
( 0% severe)
NNW   1 90% 50°

Clear



WATERLOO, IL 62298 weather forecast Day 2, 9 hours 10 AM 68° 68° Clear N   3 57% 52°
WATERLOO, IL 62298 weather forecast Day 2, 12 hours 1 PM 75° 75° Clear 0%

0% Thunder
( 1% severe)
NNW   7 41% 50°
WATERLOO, IL 62298 weather forecast Day 2, 15 hours 4 PM 75° 75° Partly Cloudy N   8 40% 49°
WATERLOO, IL 62298 weather forecast Day 2, 18 hours 7 PM 72° 72° Clear 0%

0% Thunder
( 1% severe)
N   5 44% 49°
WATERLOO, IL 62298 weather forecast Day 2, 21 hours 10 PM 62° 63° Clear NE   1 67% 51°
Wednesday
27 AUG 2025
WATERLOO, IL 62298 weather forecast Day 3, 0 hours 1 AM 58° 59° Clear 0%

0% Thunder
( 1% severe)
  CALM 77% 51°
Low 51° WATERLOO, IL 62298 weather forecast Day 3, 3 hours 4 AM 54° 54° Clear   CALM 86% 50°
High 80° WATERLOO, IL 62298 weather forecast Day 3, 6 hours 7 AM 52° 52° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 93% 50°

Mostly Cloudy



WATERLOO, IL 62298 weather forecast Day 3, 9 hours 10 AM 69° 69° Partly Cloudy S   2 55% 52°
WATERLOO, IL 62298 weather forecast Day 3, 15 hours 1 PM 77° 78° Mostly Cloudy 0%

0% Thunder
( 3% severe)
S   3 40% 51°
WATERLOO, IL 62298 weather forecast Day 3, 18 hours 4 PM 77° 78° Mostly Cloudy S   3 40% 51°
WATERLOO, IL 62298 weather forecast Day 3, 21 hours 7 PM 74° 74° Mostly Cloudy     SE   3 46% 52°

EAST ST. LOUIS, IL extended weather forecast

Thursday
28 AUG 2025
Friday
29 AUG 2025
Saturday
30 AUG 2025
Sunday
31 AUG 2025
Monday
1 SEP 2025
Low 57° Low 58° Low 60° Low 63° Low 65°
High 83° High 84° High 84° High 80° High 82°
WATERLOO, IL 62298 weather forecast Day 4 WATERLOO, IL 62298 weather forecast Day 5 WATERLOO, IL 62298 weather forecast Day 6 WATERLOO, IL 62298 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
12% Rain
Clear
14% Rain
Mostly Cloudy
24% Rain
Overcast
50% Rain
Overcast
46% Rain
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