WATERLOO, IL 62298 Weather Forecast & Current Conditions

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EAST ST. LOUIS, IL
Current Weather

1:53 PM CDT OCT 27, 2025
Overcast
54°F
Feels Like: 52°F
Dewpoint: 48°F
Rel. Hum.: 80%
Visibility: 10 miles
Wind: ENE at 7 mph
Pressure: 30.03 inches
Last 72 hours

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WATERLOO, IL 62298
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
THIS AFTERNOON
Cloudy. Near steady temperature in the mid 50s. East winds 5 to 10 mph.
TONIGHT
Cloudy. Lows in the upper 40s. Northeast winds around 5 mph.
TUESDAY
Cloudy. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs around 60. East winds around 5 mph. Chance of rain 50 percent.
TUESDAY NIGHT
Showers. Lows in the mid 40s. East winds 5 to 10 mph. Chance of rain near 100 percent.
WEDNESDAY
Showers. Highs in the mid 50s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent.
WEDNESDAY NIGHT
Mostly cloudy with a chance of showers in the evening, then partly cloudy after midnight. Lows in the upper 30s. Chance of rain 50 percent.
THURSDAY
Mostly sunny. Highs in the upper 50s.
THURSDAY NIGHT AND FRIDAY
Mostly clear. Lows in the upper 30s. Highs in the lower 60s.
FRIDAY NIGHT AND SATURDAY
Partly cloudy. Lows in the upper 30s. Highs in the upper 50s.
SATURDAY NIGHT AND SUNDAY
Partly cloudy. A 20 percent chance of rain showers. Lows in the mid 30s. Highs around 60.

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  5:00 AM MST 10/27/2025
Monday
27 OCT 2025
WATERLOO, IL 62298 weather forecast Day 1, 12 hours 12 PM 55° 52° Mostly Cloudy 9%

0% Thunder
( 1% severe)
E   10 80% 49°
High 57° WATERLOO, IL 62298 weather forecast Day 1, 15 hours 3 PM 56° 54° Mostly Cloudy E   9 80% 50°
Mostly Cloudy



WATERLOO, IL 62298 weather forecast Day 1, 18 hours 6 PM 55° 54° Mostly Cloudy 5%

0% Thunder
( 1% severe)
E   6 83% 50°
WATERLOO, IL 62298 weather forecast Day 1, 21 hours 9 PM 51° 50° Mostly Cloudy E   3 100% 51°
Tuesday
28 OCT 2025
WATERLOO, IL 62298 weather forecast Day 2, 0 hours 12 AM 51° 51° Mostly Cloudy 7%

0% Thunder
( 1% severe)
ENE   2 100% 51°
Low 48° WATERLOO, IL 62298 weather forecast Day 2, 3 hours 3 AM 50° 50° Mostly Cloudy ENE   2 100% 50°
High 60° WATERLOO, IL 62298 weather forecast Day 2, 6 hours 6 AM 50° 50° Mostly Cloudy 16%
RAIN
<.01 in
0% Thunder
( 1% severe)
E   2 100% 50°

Mostly Cloudy

Chance of Rain

WATERLOO, IL 62298 weather forecast Day 2, 9 hours 9 AM 54° 53° Mostly Cloudy E   5 93% 52°
WATERLOO, IL 62298 weather forecast Day 2, 12 hours 12 PM 58° 57° Mostly Cloudy 34%
RAIN
.01–.1 in
0% Thunder
( 2% severe)
ESE   6 83% 53°
WATERLOO, IL 62298 weather forecast Day 2, 15 hours 3 PM 58° 57° Overcast ESE   7 83% 53°
WATERLOO, IL 62298 weather forecast Day 2, 18 hours 6 PM 57° 56° Overcast 85%
RAIN
***
0% Thunder
( 3% severe)
ESE   7 90% 54°
WATERLOO, IL 62298 weather forecast Day 2, 21 hours 9 PM 54° 52° Overcast E   8 100% 54°
Wednesday
29 OCT 2025
WATERLOO, IL 62298 weather forecast Day 3, 0 hours 12 AM 53° 50° Overcast 86%
RAIN
***
0% Thunder
( 7% severe)
E   9 100% 53°
Low 45° WATERLOO, IL 62298 weather forecast Day 3, 3 hours 3 AM 51° 47° Overcast ENE   12 100% 51°
High 54° WATERLOO, IL 62298 weather forecast Day 3, 6 hours 6 AM 48° 43° Overcast 76%
RAIN
***
0% Thunder
( 4% severe)
NE   13 100% 48°

Mostly Cloudy

Rain Likely

WATERLOO, IL 62298 weather forecast Day 3, 9 hours 9 AM 50° 45° Mostly Cloudy NE   14 89% 47°
WATERLOO, IL 62298 weather forecast Day 3, 15 hours 12 PM 51° 46° Mostly Cloudy 50%
RAIN
***
0% Thunder
( 3% severe)
NNE   15 80% 45°
WATERLOO, IL 62298 weather forecast Day 3, 18 hours 3 PM 52° 47° Mostly Cloudy NNE   15 74% 44°
WATERLOO, IL 62298 weather forecast Day 3, 21 hours 6 PM 50° 46° Mostly Cloudy     N   12 77% 43°

EAST ST. LOUIS, IL extended weather forecast

Thursday
30 OCT 2025
Friday
31 OCT 2025
Saturday
1 NOV 2025
Sunday
2 NOV 2025
Monday
3 NOV 2025
Low 43° Low 38° Low 39° Low 36° Low 39°
High 57° High 61° High 56° High 56° High 61°
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
Mostly Cloudy
46% Rain
Clear
5% Rain
Partly Cloudy
17% Rain
Partly Cloudy
15% Rain
Partly Cloudy
20% Rain
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