New York, NY 72° Los Angeles, CA 64° Chicago, IL 65° Houston, TX 76° 🌤️ Miami, FL Phoenix, AZ 84° 🌤️ Seattle, WA Denver, CO 52° 🌤️ Toronto, ON 🌤️ Vancouver, BC
WeatherLiveIllinoisWaterloo

Waterloo, IL Weather (62298)

Current WeatherWaterloo · 9:11 AM CDT
85° | 54°
77°F
Feels like 74°
Light drizzle
WindNW 21 mph · Gusts 27 mph
Precip83% · 0.22 in
Humidity86% · Dew point 72°
UV index9 Very high
Air Quality30 Good
Pressure30.33 inHg
Visibility6 mi
Sunrise / Sunset6:17 AM · 7:52 PM · 13h 35m

Weather map — Waterloo

Full radar →
Now
77°
39%
21 mph
10:00
79°
39%
20 mph
11:00
82°
36%
22 mph
12:00
83°
36%
22 mph
13:00
84°
36%
22 mph
14:00
85°
36%
22 mph
15:00
54°
26%
23 mph
16:00
54°
26%
23 mph
17:00
54°
26%
24 mph
18:00
54°
26%
22 mph
19:00
54°
27%
23 mph
20:00
54°
27%
25 mph
21:00
54°
27%
24 mph
22:00
54°
28%
25 mph
23:00
54°
28%
25 mph
00:00
54°
28%
25 mph
01:00
55°
28%
26 mph
02:00
55°
28%
25 mph
03:00
55°
27%
26 mph
04:00
55°
27%
26 mph
05:00
55°
26%
26 mph
06:00
55°
27%
27 mph
07:00
55°
27%
27 mph
08:00
55°
28%
27 mph

Today · Mon 8/17

High 85°
83% / 0.22 in

Mostly cloudy. Winds NW at 25 mph.

Tonight · Mon 8/17

Low 54°
27% / –

Mostly cloudy. Winds NW at 24 mph.

Tomorrow · Tue 8/18

56° | 54°
78% / 0.07 in

Mostly cloudy. Winds NW at 30 mph.

7-day trend

Waterloo · temperature + precipitation

10-day forecast

Updated 9:11 AM

Details & indices

Wind
21 mph NW
Gusts 27 mph
Humidity
86%
Dew point 72°
Pressure
30.33 inHg
Rising
UV index
9 — Very high
High today
Air Quality
Good
AQI 30 · US EPA
Allergy
None detected
Visibility
6 mi
Clear view
Allergy — Waterloo

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
None
Ragweed
None

Sun & moon

Sunrise6:17 AM
Sunset7:52 PM
Length of day13h 35m
Moonrise11:39 AM
Moonset10:14 PM
Next full moonAug 27 Sturgeon Moon
Latitude38.3359°N
Longitude-90.1498°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Poor
Fire up the grill
Running
Poor
Lace up outside
Patio
Poor
Dinner outdoors
Nearby places in {{REGION}}
Chicago
Mostly cloudy
65°
Aurora
Partly cloudy
68°
🌤️
Rockford
🌤️
Joliet
🌤️
Naperville
Data sources · Monday, August 17
Where the Waterloo forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 38.3359°N, -90.1498°.
NBM + global weather models
Updated: 9:11 AM
ZIP codes in Waterloo
📮
62244
Waterloo
📮
62256
Waterloo
📮
62295
Waterloo
📮
62298
Waterloo
Weather in Waterloo
Waterloo's outlook: warmest day near 85° (Monday), coldest night about 50° (Thursday). Roughly 1.5 in of rain falls over the period, with Saturday the most likely wet day (89%). Hold onto the patio furniture Friday: gusts could hit 46 mph. No active NWS alerts at the moment — quiet on the hazards front. Right now Waterloo is about 7° cooler than nearby Evansville. Longer view: variable mid-latitude weather in every season.
Waterloo, IL · Elev 709 ft · 38.34°N, 90.15°W · Illinois · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 9:11 AM