WATERLOO, IL 62298 Weather Forecast & Current Conditions

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EAST ST. LOUIS, IL
Current Weather

10:53 PM CDT JUN 6, 2025
Overcast
Mist
70°F
Feels Like: 70°F
Dewpoint: 68°F
Rel. Hum.: 93%
Visibility: 5 miles
Wind: NNE at 3 mph
Pressure:
Last 72 hours

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WATERLOO, IL 62298
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Mostly cloudy. A chance of showers late this evening. Patchy fog. Lows in the lower 60s. Northwest winds around 5 mph. Chance of rain 40 percent.
SATURDAY
Mostly cloudy. Patchy fog in the morning. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the mid 70s. East winds around 5 mph, becoming south in the afternoon. Chance of rain 70 percent.
SATURDAY NIGHT
Mostly cloudy. Showers and thunderstorms likely in the evening, then a slight chance of showers after midnight. Lows around 60. Northwest winds 5 to 10 mph. Chance of rain 60 percent.
SUNDAY
Sunny. A slight chance of showers in the afternoon. Warmer with highs in the mid 80s. West winds around 5 mph. Chance of rain 20 percent.
SUNDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. West winds around 5 mph. Chance of rain 50 percent.
MONDAY
Mostly sunny. Highs in the lower 80s.
MONDAY NIGHT THROUGH TUESDAY NIGHT
Mostly clear. Lows in the upper 50s. Highs in the lower 80s.
WEDNESDAY
Sunny. Highs in the mid 80s.
WEDNESDAY NIGHT
Mostly clear. Lows in the lower 60s.
THURSDAY
Mostly sunny in the morning, then mostly cloudy with a slight chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.
THURSDAY NIGHT
Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 20 percent.
FRIDAY
Mostly cloudy with a slight chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 80s. Chance of rain 60 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  6/ 6/2025
Friday
6 JUN 2025
WATERLOO, IL 62298 weather forecast Day 1, 12 hours 1 PM 73° 73° Mostly Cloudy 75%
RAIN
***
0% Thunder
( 47% severe)
NNW   3 81% 67°
High 75° WATERLOO, IL 62298 weather forecast Day 1, 15 hours 4 PM 74° 74° Mostly Cloudy N   3 82% 68°
Mostly Cloudy

Rain Likely

WATERLOO, IL 62298 weather forecast Day 1, 18 hours 7 PM 74° 74° Mostly Cloudy 36%
RAIN
.01–.1 in
0% Thunder
( 22% severe)
NNE   3 79% 67°
WATERLOO, IL 62298 weather forecast Day 1, 21 hours 10 PM 69° 69° Mostly Cloudy NNW   1 90% 66°
Saturday
7 JUN 2025
WATERLOO, IL 62298 weather forecast Day 2, 0 hours 1 AM 67° 67° Mostly Cloudy 13%
RAIN
<.01 in
0% Thunder
( 7% severe)
NNW   1 93% 65°
Low 64° WATERLOO, IL 62298 weather forecast Day 2, 3 hours 4 AM 65° 65° Mostly Cloudy N   1 97% 64°
High 79° WATERLOO, IL 62298 weather forecast Day 2, 6 hours 7 AM 65° 65° Mostly Cloudy 45%
RAIN
.01–.1 in
0% Thunder
( 18% severe)
NNE   1 97% 64°

Mostly Cloudy

Rain Likely

WATERLOO, IL 62298 weather forecast Day 2, 9 hours 10 AM 72° 72° Mostly Cloudy SE   3 79% 65°
WATERLOO, IL 62298 weather forecast Day 2, 12 hours 1 PM 75° 75° Mostly Cloudy 76%
RAIN
***
0% Thunder
( 60% severe)
SSE   6 74% 66°
WATERLOO, IL 62298 weather forecast Day 2, 15 hours 4 PM 76° 78° Mostly Cloudy SSE   7 71% 66°
WATERLOO, IL 62298 weather forecast Day 2, 18 hours 7 PM 75° 75° Mostly Cloudy 26%
RAIN
>2 in
0% Thunder
( 20% severe)
E   6 74% 66°
WATERLOO, IL 62298 weather forecast Day 2, 21 hours 10 PM 69° 69° Mostly Cloudy NW   5 87% 65°
Sunday
8 JUN 2025
WATERLOO, IL 62298 weather forecast Day 3, 0 hours 1 AM 67° 67° Partly Cloudy 8%

0% Thunder
( 3% severe)
NW   5 87% 63°
Low 62° WATERLOO, IL 62298 weather forecast Day 3, 3 hours 4 AM 64° 65° Partly Cloudy WNW   5 90% 61°
High 83° WATERLOO, IL 62298 weather forecast Day 3, 6 hours 7 AM 64° 65° Partly Cloudy 3%

0% Thunder
( 4% severe)
NW   5 90% 61°

Partly Cloudy



WATERLOO, IL 62298 weather forecast Day 3, 9 hours 10 AM 72° 72° Partly Cloudy WNW   6 71% 62°
WATERLOO, IL 62298 weather forecast Day 3, 15 hours 1 PM 78° 80° Clear 17%
RAIN
.1–.25 in
0% Thunder
( 21% severe)
W   8 60% 63°
WATERLOO, IL 62298 weather forecast Day 3, 18 hours 4 PM 81° 83° Partly Cloudy W   8 56% 64°
WATERLOO, IL 62298 weather forecast Day 3, 21 hours 7 PM 79° 81° Mostly Cloudy     W   7 62% 65°

EAST ST. LOUIS, IL extended weather forecast

Monday
9 JUN 2025
Tuesday
10 JUN 2025
Wednesday
11 JUN 2025
Thursday
12 JUN 2025
Friday
13 JUN 2025
Low 61° Low 58° Low 54° Low 62° Low 65°
High 80° High 77° High 82° High 82° High 80°
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
Overcast
46% Rain
Partly Cloudy
24% Rain
Clear
6% Rain
Partly Cloudy
23% Rain
Overcast
45% Rain
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