Cities / United States / Illinois

26°

☁️ Illiopolis weather

Overcast. .

Feels like 31° Wind 9 km/h E Humidity 86% Pressure 1016 hPa UV 0 Air Good ☀ 06:08 - 19:54
⚠ Heat Advisory · Moderate

Heat Advisory issued August 14 at 1:38PM CDT until August 16 at 8:00PM CDT by NWS Lincoln IL

Right now it is 26° in Illiopolis with overcast skies, it feels more like 31°, today's high is 29° with an overnight low of 22° and about 12.2 mm of rain is expected. The sun rises at 06:08 and sets at 19:54, giving 13h 46m of daylight. Over the coming week highs range from 22° to 33°.

Illiopolis is in Illinois, United States, sitting 184 m above sea level. Local time is America/Chicago (UTC−5), and every time on this page is shown in it.

Next 24 hours - temperature

23° 29° 34° 33° 23° 20:00 · 26.6° · 0 mm 21:00 · 25.5° · 0 mm 22:00 · 24.7° · 0 mm 23:00 · 24.2° · 0.7 mm 00:00 · 23.9° · 0 mm 01:00 · 23.7° · 0 mm 02:00 · 23.6° · 0 mm 03:00 · 23.3° · 0 mm 04:00 · 23.4° · 0 mm 05:00 · 23.3° · 0 mm 06:00 · 23.2° · 0 mm 07:00 · 23.2° · 4 mm 08:00 · 23.1° · 1.1 mm 09:00 · 23.3° · 0 mm 10:00 · 23.8° · 0 mm 11:00 · 25.4° · 0 mm 12:00 · 26.9° · 0 mm 13:00 · 28.6° · 0 mm 14:00 · 28.5° · 0 mm 15:00 · 30.5° · 0 mm 16:00 · 32° · 0 mm 17:00 · 33.2° · 0 mm 18:00 · 32.2° · 0 mm 19:00 · 30.8° · 0 mm

Precipitation

20:00 · 0 mm 20:00 21:00 · 0 mm 22:00 · 0 mm 23:00 · 0.7 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 · 4 mm 08:00 · 1.1 mm 08:00 09:00 · 0 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 ☁️ 26.6° 30.9° - Overcast
21:00 ☁️ 25.5° 28.6° - Overcast
22:00 ⛅ 24.7° 27.4° - Partly cloudy
23:00 🌦️ 24.2° 26.4° 0.7 mm Light rain
00:00 ☁️ 23.9° 25.9° - Overcast
01:00 ☁️ 23.7° 25.3° - Overcast
02:00 ☀️ 23.6° 25.4° - Clear sky
03:00 ☀️ 23.3° 25.1° - Clear sky
04:00 ☁️ 23.4° 25.2° - Overcast
05:00 ☁️ 23.3° 24.9° - Overcast
06:00 ☁️ 23.2° 24.5° - Overcast
07:00 🌧️ 23.2° 25.3° 4 mm Heavy rain

Next 16 days

Today🌧️ 29°22°12.2mm Sat 15🌧️ 33°23°5.1mm Sun 16🌦️ 30°22°0.8mm Mon 17☀️ 28°18° Tue 18☀️ 30°18° Wed 19🌧️ 29°20°6.1mm Thu 20🌦️ 22°18°1.5mm Fri 21🌦️ 19°15°0.6mm Sat 22☁️ 26°15° Sun 23☀️ 31°19° Mon 24☀️ 34°21° Tue 25☀️ 35°23° Wed 26☀️ 37°24° Thu 27☀️ 37°24° Fri 28🌦️ 36°20°1.8mm Sat 29☁️ 26°14°
🌧️ TodayAugust 14th Avg 25° Low 22° at 08:00 High 29° at 17:00 12.2 mm rain Feels 34° Wind ~22 km/h
Cloudy Cloudy Cloudy
00:00 25°
02:00 25°
04:00 24°
06:00 23°
08:00 22°
10:00 24°
12:00 24°
14:00 27°
16:00 29°
18:00 29°
20:00 27°
22:00 25°
🌧️ SaturdayAugust 15th Avg 27° Low 23° at 08:00 High 33° at 17:00 5.1 mm rain Feels 35° Wind ~18 km/h
Cloudy Cloudy Cloudy
00:00 24°
02:00 24°
04:00 23°
06:00 23°
08:00 23° 1.1mm
10:00 24°
12:00 27°
14:00 29°
16:00 32°
18:00 32°
20:00 29°
22:00 27°
🌦️ SundayAugust 16th Avg 26° Low 22° at 23:00 High 30° at 15:00 0.8 mm rain Feels 32° Wind ~25 km/h
Cloudy Cloudy Cloudy Cloudy
00:00 26°
02:00 26°
04:00 25° 0.4mm
06:00 24° 0.4mm
08:00 25°
10:00 28°
12:00 30°
14:00 30°
16:00 30°
18:00 28°
20:00 25°
22:00 23°
☀️ MondayAugust 17th Avg 23° Low 18° at 06:00 High 28° at 14:00 Feels 30° Wind ~11 km/h
Clear Cloudy
00:00 21°
02:00 20°
04:00 19°
06:00 18°
08:00 20°
10:00 24°
12:00 26°
14:00 28°
16:00 27°
18:00 27°
20:00 22°
22:00 21°
☀️ TuesdayAugust 18th Avg 24° Low 18° at 06:00 High 30° at 16:00 Wind ~22 km/h
Cloudy Clear Clear
00:00 20°
02:00 19°
04:00 19°
06:00 18°
08:00 20°
10:00 24°
12:00 27°
14:00 29°
16:00 30°
18:00 28°
20:00 24°
22:00 24°
🌧️ WednesdayAugust 19th Avg 24° Low 20° at 04:00 High 29° at 15:00 6.1 mm rain Feels 32° Wind ~32 km/h
Rain Cloudy Cloudy
00:00 25°
02:00 24° 1mm
04:00 20° 2.3mm
06:00 21°
08:00 22°
10:00 25°
12:00 27°
14:00 29°
16:00 29°
18:00 26°
20:00 24°
22:00 22°
🌦️ ThursdayAugust 20th Avg 20° Low 18° at 23:00 High 22° at 13:00 1.5 mm rain Feels 24° Wind ~25 km/h
Partly Cloudy Rain Cloudy Clear
00:00 21°
02:00 20°
04:00 19°
06:00 19° 0.1mm
08:00 20° 0.1mm
10:00 21° 0.1mm
12:00 22° 0.1mm
14:00 22° 0.2mm
16:00 20° 0.2mm
18:00 20°
20:00 19°
22:00 18°
🌦️ FridayAugust 21st Avg 17° Low 15° at 23:00 High 19° at 16:00 0.6 mm rain Wind ~19 km/h
Cloudy Rain Cloudy Partly Cloudy
00:00 18°
02:00 18°
04:00 18°
06:00 18°
08:00 17° 0.1mm
10:00 16° 0.1mm
12:00 16° 0.1mm
14:00 17°
16:00 19°
18:00 19°
20:00 17°
22:00 15°
☁️ SaturdayAugust 22nd Avg 20° Low 15° at 00:00 High 26° at 16:00 Wind ~14 km/h
Partly Cloudy Cloudy Partly Cloudy Clear
00:00 15°
02:00 15°
04:00 16°
06:00 17°
08:00 17°
10:00 19°
12:00 22°
14:00 25°
16:00 26°
18:00 24°
20:00 22°
22:00 20°
☀️ SundayAugust 23rd Avg 25° Low 19° at 05:00 High 31° at 15:00 Feels 33° Wind ~15 km/h
Clear
00:00 19°
02:00 19°
04:00 19°
06:00 19°
08:00 21°
10:00 26°
12:00 29°
14:00 31°
16:00 31°
18:00 28°
20:00 26°
22:00 25°
☀️ MondayAugust 24th Avg 27° Low 21° at 06:00 High 34° at 15:00 Wind ~18 km/h
Clear
00:00 24°
02:00 23°
04:00 22°
06:00 21°
08:00 24°
10:00 29°
12:00 32°
14:00 34°
16:00 34°
18:00 31°
20:00 27°
22:00 26°
☀️ TuesdayAugust 25th Avg 29° Low 23° at 06:00 High 35° at 15:00 Wind ~16 km/h
Clear
00:00 25°
02:00 25°
04:00 24°
06:00 23°
08:00 25°
10:00 30°
12:00 33°
14:00 35°
16:00 35°
18:00 32°
20:00 29°
22:00 27°
☀️ WednesdayAugust 26th Avg 29° Low 24° at 06:00 High 37° at 15:00 Wind ~20 km/h
Clear
00:00 25°
02:00 24°
04:00 25°
06:00 24°
08:00 26°
10:00 31°
12:00 35°
14:00 37°
16:00 37°
18:00 33°
20:00 29°
22:00 28°
☀️ ThursdayAugust 27th Avg 30° Low 24° at 06:00 High 37° at 15:00 Wind ~20 km/h
Clear
00:00 27°
02:00 26°
04:00 25°
06:00 24°
08:00 26°
10:00 31°
12:00 35°
14:00 37°
16:00 37°
18:00 33°
20:00 30°
22:00 28°
🌦️ FridayAugust 28th Avg 29° Low 20° at 23:00 High 36° at 15:00 1.8 mm rain Wind ~31 km/h
Clear Rain
00:00 27°
02:00 27°
04:00 27°
06:00 25°
08:00 26°
10:00 31°
12:00 34°
14:00 36°
16:00 36°
18:00 33°
20:00 27° 0.6mm
22:00 21° 0.6mm
☁️ SaturdayAugust 29th Avg 21° Low 14° at 23:00 High 26° at 16:00 Feels 23° Wind ~20 km/h
Cloudy Partly Cloudy Cloudy
00:00 20°
02:00 20°
04:00 20°
06:00 20°
08:00 20°
10:00 20°
12:00 22°
14:00 25°
16:00 26°
18:00 23°
20:00 19°
22:00 16°

Sun

☀️ Sunrise 06:08 · Sunset 19:54

13h 46m of daylight · America/Chicago

Air quality

PM2.5 1.5 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Haynes · 4.7 km Saunders · 5.6 km Niantic · 6.5 km Lanesville · 9.1 km Mount Auburn · 9.9 km Osbernville · 11.6 km

Tools for Illiopolis

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

Common questions about Illiopolis weather

Will it rain in Illiopolis today?

Yes - about 12.2 mm of rain is expected in Illiopolis today.

What is the temperature in Illiopolis right now?

It is 26° in Illiopolis right now, though it feels closer to 31°. Today runs between a low of 22° and a high of 29°.

What time is sunrise and sunset in Illiopolis?

The sun rises at 06:08 and sets at 19:54 local time in Illiopolis today, giving 13h 46m of daylight.

What is the air quality in Illiopolis?

PM2.5 in Illiopolis is currently 1.5 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 Illiopolis 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 Illiopolis 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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