Cities / United States / Illinois

21°

☀️ Round Lake Heights weather

Clear sky. .

Feels like 21° Wind 7 km/h S Humidity 60% Pressure 1015 hPa UV 0 Air Fair ☀ 06:10 - 19:38

Right now it is 21° in Round Lake Heights with clear skies and today's high is 26° with an overnight low of 13°. The sun rises at 06:10 and sets at 19:38, giving 13h 28m of daylight. Over the coming week highs range from 26° to 29° - a steady stretch with little day-to-day change.

Round Lake Heights is in Illinois, United States, sitting 239 m above sea level, with a population of about 3,000. Local time is America/Chicago (UTC−5), and every time on this page is shown in it.

Next 24 hours - temperature

18° 24° 29° 29° 19° 20:00 · 21.9° · 0 mm 21:00 · 20.6° · 0 mm 22:00 · 19.5° · 0 mm 23:00 · 18.8° · 0 mm 00:00 · 18.6° · 0 mm 01:00 · 19.2° · 0 mm 02:00 · 19.9° · 0 mm 03:00 · 20.1° · 0 mm 04:00 · 19.7° · 0 mm 05:00 · 19.3° · 0 mm 06:00 · 19.1° · 0 mm 07:00 · 19.8° · 0 mm 08:00 · 21.3° · 0 mm 09:00 · 20.6° · 2.2 mm 10:00 · 22.5° · 0 mm 11:00 · 23.5° · 0 mm 12:00 · 25.5° · 0 mm 13:00 · 28.5° · 0 mm 14:00 · 28.7° · 0 mm 15:00 · 28.7° · 0 mm 16:00 · 28.2° · 0 mm 17:00 · 27.9° · 0 mm 18:00 · 27.3° · 0 mm 19:00 · 25.7° · 0 mm

Precipitation

20:00 · 0 mm 20:00 21:00 · 0 mm 22:00 · 0 mm 23:00 · 0 mm 23:00 00:00 · 0 mm 01:00 · 0 mm 02:00 · 0 mm 02:00 03:00 · 0 mm 04:00 · 0 mm 05:00 · 0 mm 05:00 06:00 · 0 mm 07:00 · 0 mm 08:00 · 0 mm 08:00 09:00 · 2.2 mm 10:00 · 0 mm 11:00 · 0 mm 11:00 12:00 · 0 mm 13:00 · 0 mm 14:00 · 0 mm 14:00 15:00 · 0 mm 16:00 · 0 mm 17:00 · 0 mm 17:00 18:00 · 0 mm 19:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
20:00 ☀️ 21.9° 21.2° - Clear sky
21:00 ☀️ 20.6° 20.2° - Clear sky
22:00 ☁️ 19.5° 18.9° - Overcast
23:00 ☁️ 18.8° 18.1° - Overcast
00:00 ☀️ 18.6° 17.9° - Clear sky
01:00 ☁️ 19.2° 18.5° - Overcast
02:00 ☁️ 19.9° 18.9° - Overcast
03:00 ☁️ 20.1° 19° - Overcast
04:00 ☁️ 19.7° 18.4° - Overcast
05:00 🌤️ 19.3° 17.9° - Mostly clear
06:00 🌤️ 19.1° 17.5° - Mostly clear
07:00 ⛅ 19.8° 18.5° - Partly cloudy

Next 16 days

Today☀️ 26°13° Wed 26🌧️ 29°19°2.2mm Thu 27☀️ 27°16° Fri 28☀️ 27°15° Sat 29☁️ 26°16° Sun 30🌦️ 29°19°1.1mm Mon 31🌦️ 26°20°1.3mm Tue 1☁️ 26°18° Wed 2⛅ 31°18° Thu 3🌧️ 31°21°7.8mm Fri 4🌧️ 32°20°7.9mm Sat 5🌦️ 27°20°1.8mm Sun 6🌧️ 26°21°26.6mm Mon 7🌦️ 28°21°1.8mm Tue 8🌦️ 25°17°7.6mm Wed 9🌦️ 24°15°1.7mm
☀️ TodayAugust 25th Avg 20° Low 13° at 06:00 High 26° at 14:00 Wind ~16 km/h
Clear
00:00 15°
02:00 13°
04:00 14°
06:00 13°
08:00 17°
10:00 22°
12:00 25°
14:00 26°
16:00 26°
18:00 25°
20:00 22°
22:00 20°
🌧️ WednesdayAugust 26th Avg 23° Low 19° at 00:00 High 29° at 14:00 2.2 mm rain Feels 27° Wind ~20 km/h
Cloudy Clear
00:00 19°
02:00 20°
04:00 20°
06:00 19°
08:00 21°
10:00 23°
12:00 26°
14:00 29°
16:00 28°
18:00 27°
20:00 24°
22:00 21°
☀️ ThursdayAugust 27th Avg 21° Low 16° at 06:00 High 27° at 14:00 Wind ~16 km/h
Clear Cloudy Clear
00:00 20°
02:00 18°
04:00 17°
06:00 16°
08:00 19°
10:00 23°
12:00 25°
14:00 27°
16:00 24°
18:00 23°
20:00 22°
22:00 18°
☀️ FridayAugust 28th Avg 21° Low 15° at 06:00 High 27° at 15:00 Wind ~16 km/h
Clear Cloudy
00:00 17°
02:00 17°
04:00 16°
06:00 15°
08:00 19°
10:00 23°
12:00 26°
14:00 27°
16:00 27°
18:00 25°
20:00 20°
22:00 19°
☁️ SaturdayAugust 29th Avg 21° Low 16° at 06:00 High 26° at 15:00 Feels 24° Wind ~23 km/h
Cloudy Cloudy
00:00 18°
02:00 18°
04:00 17°
06:00 16°
08:00 18°
10:00 22°
12:00 25°
14:00 24°
16:00 25°
18:00 23°
20:00 23°
22:00 22°
🌦️ SundayAugust 30th Avg 24° Low 19° at 06:00 High 29° at 15:00 1.1 mm rain Feels 27° Wind ~33 km/h
Cloudy Rain Cloudy
00:00 22°
02:00 22°
04:00 20° 0.4mm
06:00 19° 0.1mm
08:00 20°
10:00 24°
12:00 27°
14:00 29°
16:00 29°
18:00 27°
20:00 25°
22:00 25°
🌦️ MondayAugust 31st Avg 22° Low 20° at 23:00 High 26° at 13:00 1.3 mm rain Wind ~32 km/h
Cloudy Rain
00:00 22° 0.2mm
02:00 21°
04:00 22°
06:00 21°
08:00 22°
10:00 24°
12:00 26°
14:00 26° 0.1mm
16:00 23° 0.1mm
18:00 22° 0.1mm
20:00 21° 0.1mm
22:00 21° 0.1mm
☁️ TuesdaySeptember 1st Avg 21° Low 18° at 06:00 High 26° at 16:00 Feels 28° Wind ~9 km/h
Cloudy Clear
00:00 20°
02:00 19°
04:00 18°
06:00 18°
08:00 19°
10:00 21°
12:00 22°
14:00 23°
16:00 26°
18:00 24°
20:00 21°
22:00 19°
⛅ WednesdaySeptember 2nd Avg 25° Low 18° at 00:00 High 31° at 15:00 Feels 33° Wind ~21 km/h
Clear Partly Cloudy Clear Partly Cloudy Cloudy
00:00 18°
02:00 18°
04:00 18°
06:00 19°
08:00 21°
10:00 26°
12:00 29°
14:00 31°
16:00 31°
18:00 29°
20:00 27°
22:00 26°
🌧️ ThursdaySeptember 3rd Avg 25° Low 21° at 06:00 High 31° at 15:00 7.8 mm rain Wind ~24 km/h
Partly Cloudy Cloudy Clear Rain
00:00 25°
02:00 23°
04:00 22°
06:00 21°
08:00 24°
10:00 29°
12:00 30°
14:00 30°
16:00 31°
18:00 26° 2.1mm
20:00 23° 0.5mm
22:00 23° 0.5mm
🌧️ FridaySeptember 4th Avg 25° Low 20° at 22:00 High 32° at 15:00 7.9 mm rain Wind ~40 km/h
Rain Partly Cloudy Clear Rain
00:00 23°
02:00 23° 0.5mm
04:00 22° 0.5mm
06:00 21° 0.4mm
08:00 22° 0.1mm
10:00 26° 0.1mm
12:00 29°
14:00 31°
16:00 31°
18:00 26° 0.6mm
20:00 22° 1mm
22:00 20° 1mm
🌦️ SaturdaySeptember 5th Avg 23° Low 20° at 05:00 High 27° at 16:00 1.8 mm rain Feels 29° Wind ~20 km/h
Rain Cloudy Rain Cloudy Rain
00:00 21° 0.1mm
02:00 21° 0.1mm
04:00 20° 0.1mm
06:00 20°
08:00 22° 0.1mm
10:00 24° 0.1mm
12:00 24°
14:00 25°
16:00 27°
18:00 26°
20:00 24° 0.3mm
22:00 23° 0.3mm
🌧️ SundaySeptember 6th Avg 22° Low 21° at 06:00 High 26° at 16:00 26.6 mm rain Wind ~20 km/h
Rain
00:00 22° 0.1mm
02:00 21° 2.9mm
04:00 21° 2.9mm
06:00 21° 0.4mm
08:00 21° 3.8mm
10:00 21° 3.8mm
12:00 22° 1.3mm
14:00 24° 0.2mm
16:00 26° 0.2mm
18:00 25° 0.2mm
20:00 23°
22:00 22°
🌦️ MondaySeptember 7th Avg 24° Low 21° at 06:00 High 28° at 16:00 1.8 mm rain Feels 30° Wind ~21 km/h
Clear Rain Cloudy Partly Cloudy
00:00 21°
02:00 21°
04:00 21°
06:00 21°
08:00 22° 0.6mm
10:00 24° 0.6mm
12:00 26°
14:00 28°
16:00 28°
18:00 26°
20:00 25°
22:00 24°
🌦️ TuesdaySeptember 8th Avg 22° Low 17° at 21:00 High 25° at 11:00 7.6 mm rain Feels 27° Wind ~18 km/h
Rain
00:00 23°
02:00 23° 0.2mm
04:00 23° 0.2mm
06:00 22° 0.5mm
08:00 23° 0.2mm
10:00 25° 0.2mm
12:00 25° 0.1mm
14:00 24° 0.5mm
16:00 22° 0.5mm
18:00 19° 0.6mm
20:00 18° 0.3mm
22:00 17° 0.3mm
🌦️ WednesdaySeptember 9th Avg 18° Low 15° at 07:00 High 24° at 15:00 1.7 mm rain Wind ~12 km/h
Rain Partly Cloudy Cloudy Clear
00:00 18° 0.4mm
02:00 18° 0.3mm
04:00 17° 0.3mm
06:00 15°
08:00 16°
10:00 20°
12:00 22°
14:00 23°
16:00 23°
18:00 20°
20:00 17°
22:00 15°

Sun

☀️ Sunrise 06:10 · Sunset 19:38

13h 28m of daylight · America/Chicago

Air quality

PM2.5 10.4 µg/m³ - Fair

Fine for almost everyone; unusually sensitive people may notice it on a long run.

Source: Copernicus CAMS, updated hourly.

Nearby

Round Lake Beach · 1.5 km Long Lake · 2.2 km Monaville · 2.2 km Ingleside · 2.9 km Wilson · 3 km Round Lake · 3.1 km

Tools for Round Lake Heights

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

Common questions about Round Lake Heights weather

Will it rain in Round Lake Heights today?

No rain is in the forecast for Round Lake Heights today.

What is the temperature in Round Lake Heights right now?

It is 21° in Round Lake Heights right now. Today runs between a low of 13° and a high of 26°.

What time is sunrise and sunset in Round Lake Heights?

The sun rises at 06:10 and sets at 19:38 local time in Round Lake Heights today, giving 13h 28m of daylight.

What is the air quality in Round Lake Heights?

PM2.5 in Round Lake Heights is currently 10.4 µg/m³, which counts as Fair on the European air-quality index. Fine for almost everyone; unusually sensitive people may notice it on a long run.

How accurate is the Round Lake Heights 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 Round Lake Heights 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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