Cities / United States / Illinois

28°

🌤️ Saint Johns weather

Mostly clear. .

Feels like 30° Wind 6 km/h NW Humidity 42% Pressure 1016 hPa UV 0 Air Fair ☀ 06:20 - 19:38

Right now it is 28° in Saint Johns with mostly clear skies and today's high is 28° with an overnight low of 14°. The sun rises at 06:20 and sets at 19:38, giving 13h 18m of daylight. Over the coming week highs range from 30° to 36°.

Saint Johns is in Illinois, United States, sitting 142 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

17° 24° 30° 30° 18° 15:00 · 28° · 0 mm 16:00 · 28.3° · 0 mm 17:00 · 27.8° · 0 mm 18:00 · 26.9° · 0 mm 19:00 · 25.3° · 0 mm 20:00 · 24.2° · 0 mm 21:00 · 23.4° · 0 mm 22:00 · 22.6° · 0 mm 23:00 · 21.6° · 0 mm 00:00 · 20.6° · 0 mm 01:00 · 19.9° · 0 mm 02:00 · 19.4° · 0 mm 03:00 · 19° · 0 mm 04:00 · 18.6° · 0 mm 05:00 · 18.1° · 0 mm 06:00 · 17.8° · 0 mm 07:00 · 18° · 0 mm 08:00 · 20.4° · 0 mm 09:00 · 22° · 0 mm 10:00 · 24.5° · 0 mm 11:00 · 26.4° · 0 mm 12:00 · 27.2° · 0 mm 13:00 · 28.8° · 0 mm 14:00 · 29.7° · 0 mm

Precipitation

15:00 · 0 mm 15:00 16:00 · 0 mm 17:00 · 0 mm 18:00 · 0 mm 18:00 19:00 · 0 mm 20:00 · 0 mm 21:00 · 0 mm 21:00 22:00 · 0 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

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
15:00 ☀️ 28° 27.9° - Clear sky
16:00 ☁️ 28.3° 28.9° - Overcast
17:00 ☁️ 27.8° 27.3° - Overcast
18:00 ☁️ 26.9° 26.2° - Overcast
19:00 ☁️ 25.3° 25.4° - Overcast
20:00 ☁️ 24.2° 24.7° - Overcast
21:00 ⛅ 23.4° 23.9° - Partly cloudy
22:00 🌤️ 22.6° 22.5° - Mostly clear
23:00 ☀️ 21.6° 21.5° - Clear sky
00:00 ☀️ 20.6° 20.2° - Clear sky
01:00 ☀️ 19.9° 19.5° - Clear sky
02:00 ☀️ 19.4° 19.2° - Clear sky

Next 16 days

Today☀️ 28°14° Tue 25☁️ 30°18° Wed 26☀️ 34°19° Thu 27🌧️ 31°19°1.7mm Fri 28☀️ 30°17° Sat 29⛅ 33°17° Sun 30⛅ 36°19° Mon 31☁️ 38°25° Tue 1☀️ 41°24° Wed 2☀️ 42°26° Thu 3⛅ 38°24° Fri 4⛅ 34°19°0.4mm Sat 5🌦️ 29°16°4.4mm Sun 6🌤️ 32°15° Mon 7☁️ 32°15° Tue 8⛅ 29°15°
☀️ TodayAugust 24th Avg 21° Low 14° at 06:00 High 28° at 16:00 Wind ~9 km/h
Clear Clear Cloudy
00:00 17°
02:00 16°
04:00 15°
06:00 14°
08:00 16°
10:00 22°
12:00 26°
14:00 28°
16:00 28°
18:00 27°
20:00 24°
22:00 23°
☁️ TuesdayAugust 25th Avg 24° Low 18° at 06:00 High 30° at 16:00 Wind ~9 km/h
Clear Cloudy Cloudy
00:00 21°
02:00 19°
04:00 19°
06:00 18°
08:00 20°
10:00 25°
12:00 27°
14:00 30°
16:00 30°
18:00 30°
20:00 26°
22:00 23°
☀️ WednesdayAugust 26th Avg 26° Low 19° at 06:00 High 34° at 15:00 Feels 36° Wind ~19 km/h
Clear Cloudy Clear
00:00 22°
02:00 21°
04:00 20°
06:00 19°
08:00 22°
10:00 28°
12:00 31°
14:00 33°
16:00 34°
18:00 31°
20:00 26°
22:00 26°
🌧️ ThursdayAugust 27th Avg 24° Low 19° at 01:00 High 31° at 15:00 1.7 mm rain Feels 29° Wind ~21 km/h
Clear Clear Clear
00:00 21° 1.2mm
02:00 20°
04:00 20°
06:00 20°
08:00 21°
10:00 25°
12:00 28°
14:00 30°
16:00 31°
18:00 29°
20:00 24°
22:00 22°
☀️ FridayAugust 28th Avg 23° Low 17° at 06:00 High 30° at 15:00 Wind ~12 km/h
Clear
00:00 21°
02:00 19°
04:00 18°
06:00 17°
08:00 20°
10:00 25°
12:00 28°
14:00 30°
16:00 30°
18:00 29°
20:00 23°
22:00 21°
⛅ SaturdayAugust 29th Avg 24° Low 17° at 06:00 High 33° at 15:00 Wind ~13 km/h
Cloudy Clear Cloudy
00:00 19°
02:00 18°
04:00 17°
06:00 17°
08:00 20°
10:00 26°
12:00 30°
14:00 32°
16:00 32°
18:00 28°
20:00 25°
22:00 24°
⛅ SundayAugust 30th Avg 27° Low 19° at 06:00 High 36° at 16:00 Feels 33° Wind ~23 km/h
Cloudy Partly Cloudy Clear
00:00 22°
02:00 21°
04:00 20°
06:00 19°
08:00 22°
10:00 29°
12:00 33°
14:00 36°
16:00 36°
18:00 34°
20:00 31°
22:00 26°
☁️ MondayAugust 31st Avg 31° Low 25° at 06:00 High 38° at 15:00 Feels 36° Wind ~26 km/h
Clear Cloudy Clear
00:00 27°
02:00 27°
04:00 26°
06:00 25°
08:00 26°
10:00 31°
12:00 35°
14:00 38°
16:00 38°
18:00 36°
20:00 33°
22:00 31°
☀️ TuesdaySeptember 1st Avg 32° Low 24° at 06:00 High 41° at 16:00 Wind ~19 km/h
Clear
00:00 28°
02:00 26°
04:00 26°
06:00 24°
08:00 27°
10:00 33°
12:00 37°
14:00 40°
16:00 41°
18:00 38°
20:00 34°
22:00 30°
☀️ WednesdaySeptember 2nd Avg 33° Low 26° at 06:00 High 42° at 15:00 Feels 39° Wind ~22 km/h
Clear
00:00 29°
02:00 28°
04:00 28°
06:00 26°
08:00 29°
10:00 36°
12:00 39°
14:00 41°
16:00 42°
18:00 36°
20:00 31°
22:00 28°
⛅ ThursdaySeptember 3rd Avg 29° Low 24° at 06:00 High 38° at 16:00 Feels 36° Wind ~27 km/h
Partly Cloudy Partly Cloudy
00:00 28°
02:00 27°
04:00 25°
06:00 24°
08:00 25°
10:00 30°
12:00 34°
14:00 36°
16:00 38°
18:00 33°
20:00 28°
22:00 25°
⛅ FridaySeptember 4th Avg 26° Low 19° at 06:00 High 34° at 16:00 0.4 mm rain Feels 32° Wind ~34 km/h
Rain Partly Cloudy Clear Partly Cloudy
00:00 24°
02:00 22° 0.1mm
04:00 20° 0.1mm
06:00 19°
08:00 20°
10:00 24°
12:00 30°
14:00 33°
16:00 34°
18:00 32°
20:00 28°
22:00 25°
🌦️ SaturdaySeptember 5th Avg 23° Low 16° at 07:00 High 29° at 14:00 4.4 mm rain Feels 26° Wind ~21 km/h
Cloudy Rain Cloudy
00:00 23° 0.1mm
02:00 21°
04:00 21°
06:00 17° 0.7mm
08:00 17° 0.6mm
10:00 21° 0.6mm
12:00 26° 0.1mm
14:00 29°
16:00 29°
18:00 26°
20:00 23°
22:00 21°
🌤️ SundaySeptember 6th Avg 23° Low 15° at 06:00 High 32° at 15:00 Feels 29° Wind ~16 km/h
Clear Partly Cloudy Clear
00:00 19°
02:00 18°
04:00 16°
06:00 15°
08:00 17°
10:00 24°
12:00 28°
14:00 31°
16:00 31°
18:00 28°
20:00 25°
22:00 22°
☁️ MondaySeptember 7th Avg 23° Low 15° at 06:00 High 32° at 15:00 Feels 28° Wind ~14 km/h
Clear Partly Cloudy Cloudy
00:00 20°
02:00 18°
04:00 17°
06:00 15°
08:00 18°
10:00 25°
12:00 29°
14:00 31°
16:00 32°
18:00 28°
20:00 24°
22:00 20°
⛅ TuesdaySeptember 8th Avg 22° Low 15° at 06:00 High 29° at 14:00 Feels 25° Wind ~20 km/h
Clear Cloudy
00:00 19°
02:00 17°
04:00 16°
06:00 15°
08:00 18°
10:00 24°
12:00 28°
14:00 29°
16:00 29°
18:00 26°
20:00 23°
22:00 22°

Sun

☀️ Sunrise 06:20 · Sunset 19:38

13h 18m of daylight · America/Chicago

Air quality

PM2.5 11.3 µg/m³ - Fair

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

Source: Copernicus CAMS, updated hourly.

Nearby

Du Quoin · 2.2 km Holden · 2.3 km Sunfield · 3.7 km Denny · 7.8 km Old Du Quoin · 8 km Dowell · 10.1 km

Tools for Saint Johns

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

Common questions about Saint Johns weather

Will it rain in Saint Johns today?

No rain is in the forecast for Saint Johns today.

What is the temperature in Saint Johns right now?

It is 28° in Saint Johns right now, though it feels closer to 30°. Today runs between a low of 14° and a high of 28°.

What time is sunrise and sunset in Saint Johns?

The sun rises at 06:20 and sets at 19:38 local time in Saint Johns today, giving 13h 18m of daylight.

What is the air quality in Saint Johns?

PM2.5 in Saint Johns is currently 11.3 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 Saint Johns 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 Saint Johns 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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