Cities / United States / Illinois

31°

☁️ Waterloo weather

Overcast. .

Feels like 36° Wind 7 km/h NE Humidity 65% Pressure 1014 hPa UV 0 Air Good ☀ 06:16 - 19:53
⚠ Extreme Heat Warning · Severe

Extreme Heat Warning issued August 16 at 1:37AM CDT until August 16 at 9:00PM CDT by NWS St Louis MO

Right now it is 31° in Waterloo with overcast skies, it feels more like 36°, today's high is 33° with an overnight low of 24° and about 7.9 mm of rain is expected. The sun rises at 06:16 and sets at 19:53, giving 13h 37m of daylight. Over the coming week highs range from 26° to 33°.

Waterloo is in Illinois, United States, sitting 216 m above sea level, with a population of about 10,000. Local time is America/Chicago (UTC−5), and every time on this page is shown in it.

Next 24 hours - temperature

23° 28° 33° 32° 24° 18:00 · 32.2° · 0 mm 19:00 · 30.3° · 1.4 mm 20:00 · 28.9° · 0 mm 21:00 · 28.5° · 0 mm 22:00 · 24.2° · 6.5 mm 23:00 · 24° · 0 mm 00:00 · 24.3° · 0 mm 01:00 · 24.4° · 0 mm 02:00 · 24.2° · 0 mm 03:00 · 24.1° · 0 mm 04:00 · 24.5° · 0 mm 05:00 · 24° · 0 mm 06:00 · 23.6° · 0 mm 07:00 · 23.7° · 0 mm 08:00 · 24° · 0 mm 09:00 · 24.6° · 0 mm 10:00 · 25.5° · 0 mm 11:00 · 26.6° · 0 mm 12:00 · 27.2° · 0 mm 13:00 · 27.6° · 0 mm 14:00 · 28.1° · 0 mm 15:00 · 28.3° · 0 mm 16:00 · 28.4° · 0 mm 17:00 · 28.3° · 0 mm

Precipitation

18:00 · 0 mm 18:00 19:00 · 1.4 mm 20:00 · 0 mm 21:00 · 0 mm 21:00 22:00 · 6.5 mm 23:00 · 0 mm 00:00 · 0 mm 00:00 01:00 · 0 mm 02:00 · 0 mm 03:00 · 0 mm 03:00 04:00 · 0 mm 05:00 · 0 mm 06:00 · 0 mm 06:00 07:00 · 0 mm 08:00 · 0 mm 09:00 · 0 mm 09:00 10:00 · 0 mm 11:00 · 0 mm 12:00 · 0 mm 12:00 13:00 · 0 mm 14:00 · 0 mm 15:00 · 0 mm 15:00 16:00 · 0 mm 17:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
18:00 ☀️ 32.2° 36° - Clear sky
19:00 🌧️ 30.3° 34.5° 1.4 mm Rain
20:00 ☀️ 28.9° 32.3° - Clear sky
21:00 ☁️ 28.5° 31.3° - Overcast
22:00 🌧️ 24.2° 23° 6.5 mm Heavy rain
23:00 ☁️ 24° 27.4° - Overcast
00:00 ☁️ 24.3° 27.3° - Overcast
01:00 ☁️ 24.4° 27.3° - Overcast
02:00 ☁️ 24.2° 27.8° - Overcast
03:00 ☁️ 24.1° 28.3° - Overcast
04:00 ☁️ 24.5° 28° - Overcast
05:00 ☁️ 24° 27.2° - Overcast

Next 16 days

Today🌧️ 33°24°7.9mm Mon 17☁️ 28°23° Tue 18☀️ 33°20° Wed 19🌧️ 32°20°16.5mm Thu 20🌧️ 26°19°12.6mm Fri 21☀️ 29°17° Sat 22☀️ 32°18° Sun 23☁️ 27°18°0.1mm Mon 24🌦️ 27°16°1.4mm Tue 25☁️ 33°18°0.3mm Wed 26🌦️ 32°22°0.6mm Thu 27☀️ 31°17° Fri 28☀️ 28°16° Sat 29🌤️ 34°16° Sun 30☁️ 29°19° Mon 31☁️ 27°14°
🌧️ TodayAugust 16th Avg 29° Low 24° at 23:00 High 33° at 17:00 7.9 mm rain Feels 39° Wind ~32 km/h
Clear Cloudy Clear
00:00 28°
02:00 27°
04:00 27°
06:00 26°
08:00 27°
10:00 29°
12:00 29°
14:00 32°
16:00 32°
18:00 32°
20:00 29°
22:00 24° 6.5mm
☁️ MondayAugust 17th Avg 25° Low 23° at 23:00 High 28° at 16:00 Wind ~19 km/h
Cloudy Cloudy Cloudy Cloudy
00:00 24°
02:00 24°
04:00 25°
06:00 24°
08:00 24°
10:00 26°
12:00 27°
14:00 28°
16:00 28°
18:00 28°
20:00 25°
22:00 24°
☀️ TuesdayAugust 18th Avg 26° Low 20° at 06:00 High 33° at 16:00 Wind ~16 km/h
Cloudy Clear
00:00 22°
02:00 22°
04:00 21°
06:00 20°
08:00 22°
10:00 26°
12:00 29°
14:00 32°
16:00 33°
18:00 31°
20:00 26°
22:00 24°
🌧️ WednesdayAugust 19th Avg 25° Low 20° at 04:00 High 32° at 16:00 16.5 mm rain Feels 34° Wind ~25 km/h
Rain Cloudy Clear
00:00 22°
02:00 22°
04:00 20° 3.5mm
06:00 20° 4.5mm
08:00 21° 3.3mm
10:00 21°
12:00 28°
14:00 31°
16:00 32°
18:00 30°
20:00 26°
22:00 24°
🌧️ ThursdayAugust 20th Avg 22° Low 19° at 22:00 High 26° at 15:00 12.6 mm rain Wind ~19 km/h
Cloudy Rain Rain Cloudy
00:00 22°
02:00 22°
04:00 21°
06:00 21° 0.4mm
08:00 22° 0.5mm
10:00 22° 1.8mm
12:00 22° 1.2mm
14:00 23°
16:00 25° 1.2mm
18:00 23° 1mm
20:00 20° 0.1mm
22:00 19°
☀️ FridayAugust 21st Avg 22° Low 17° at 04:00 High 29° at 15:00 Wind ~12 km/h
Clear
00:00 18°
02:00 18°
04:00 17°
06:00 17°
08:00 20°
10:00 23°
12:00 26°
14:00 28°
16:00 29°
18:00 27°
20:00 24°
22:00 21°
☀️ SaturdayAugust 22nd Avg 24° Low 18° at 05:00 High 32° at 15:00 Wind ~11 km/h
Clear
00:00 20°
02:00 19°
04:00 19°
06:00 18°
08:00 21°
10:00 26°
12:00 29°
14:00 31°
16:00 32°
18:00 29°
20:00 26°
22:00 23°
☁️ SundayAugust 23rd Avg 22° Low 18° at 06:00 High 27° at 14:00 0.1 mm rain Feels 25° Wind ~17 km/h
Clear Partly Cloudy Cloudy
00:00 22°
02:00 21°
04:00 19°
06:00 18°
08:00 19°
10:00 23°
12:00 25°
14:00 27°
16:00 26°
18:00 24°
20:00 21°
22:00 19°
🌦️ MondayAugust 24th Avg 21° Low 16° at 06:00 High 27° at 16:00 1.4 mm rain Wind ~24 km/h
Rain Cloudy Clear
00:00 18° 0.1mm
02:00 17° 0.1mm
04:00 17° 0.1mm
06:00 16° 0.1mm
08:00 17° 0.2mm
10:00 20° 0.2mm
12:00 22°
14:00 25°
16:00 27°
18:00 25°
20:00 22°
22:00 21°
☁️ TuesdayAugust 25th Avg 26° Low 18° at 06:00 High 33° at 16:00 0.3 mm rain Wind ~25 km/h
Rain Clear Partly Cloudy Cloudy Partly Cloudy
00:00 20°
02:00 19° 0.1mm
04:00 19° 0.1mm
06:00 18°
08:00 20°
10:00 25°
12:00 30°
14:00 32°
16:00 33°
18:00 31°
20:00 30°
22:00 29°
🌦️ WednesdayAugust 26th Avg 26° Low 22° at 23:00 High 32° at 16:00 0.6 mm rain Feels 34° Wind ~22 km/h
Partly Cloudy Cloudy Rain Clear
00:00 27°
02:00 25°
04:00 24°
06:00 23°
08:00 24°
10:00 26°
12:00 26°
14:00 29°
16:00 32°
18:00 29° 0.2mm
20:00 25°
22:00 23°
☀️ ThursdayAugust 27th Avg 23° Low 17° at 06:00 High 31° at 15:00 Feels 28° Wind ~20 km/h
Clear
00:00 21°
02:00 20°
04:00 19°
06:00 17°
08:00 20°
10:00 25°
12:00 29°
14:00 30°
16:00 30°
18:00 27°
20:00 24°
22:00 21°
☀️ FridayAugust 28th Avg 22° Low 16° at 06:00 High 28° at 15:00 Wind ~15 km/h
Clear
00:00 18°
02:00 17°
04:00 17°
06:00 16°
08:00 18°
10:00 23°
12:00 26°
14:00 28°
16:00 28°
18:00 26°
20:00 22°
22:00 19°
🌤️ SaturdayAugust 29th Avg 25° Low 16° at 06:00 High 34° at 16:00 Wind ~13 km/h
Clear Clear Partly Cloudy
00:00 18°
02:00 18°
04:00 17°
06:00 16°
08:00 19°
10:00 26°
12:00 30°
14:00 33°
16:00 34°
18:00 31°
20:00 28°
22:00 26°
☁️ SundayAugust 30th Avg 25° Low 19° at 23:00 High 29° at 12:00 Wind ~20 km/h
Cloudy Partly Cloudy Cloudy Partly Cloudy
00:00 24°
02:00 23°
04:00 22°
06:00 21°
08:00 23°
10:00 28°
12:00 29°
14:00 28°
16:00 27°
18:00 27°
20:00 24°
22:00 20°
☁️ MondayAugust 31st Avg 21° Low 14° at 06:00 High 27° at 14:00 Feels 24° Wind ~22 km/h
Partly Cloudy Cloudy
00:00 18°
02:00 17°
04:00 15°
06:00 14°
08:00 16°
10:00 22°
12:00 26°
14:00 27°
16:00 26°
18:00 24°
20:00 22°
22:00 20°

Sun

☀️ Sunrise 06:16 · Sunset 19:53

13h 37m of daylight · America/Chicago

Air quality

PM2.5 6.8 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Precinct 28 · 4.1 km Precinct 7 · 4.5 km Lemens · 6 km Precinct 22 · 6.3 km Wartburg · 6.4 km Precinct 8 · 6.9 km

Tools for Waterloo

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Waterloo weather

Will it rain in Waterloo today?

Yes - about 7.9 mm of rain is expected in Waterloo today.

What is the temperature in Waterloo right now?

It is 31° in Waterloo right now, though it feels closer to 36°. Today runs between a low of 24° and a high of 33°.

What time is sunrise and sunset in Waterloo?

The sun rises at 06:16 and sets at 19:53 local time in Waterloo today, giving 13h 37m of daylight.

What is the air quality in Waterloo?

PM2.5 in Waterloo is currently 6.8 µg/m³, which counts as Good on the European air-quality index. No reason to change your plans - open the windows.

How accurate is the Waterloo forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Waterloo best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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