Cities / United States / Illinois

23°

☀️ Swansea weather

Clear sky. .

Feels like 24° Wind 7 km/h SE Humidity 73% Pressure 1015 hPa UV 0 Air Good ☀ 06:28 - 19:31
⚠ Heat Advisory · Moderate

Heat Advisory issued August 30 at 11:03PM CDT until September 4 at 8:00PM CDT by NWS St Louis MO

Right now it is 23° in Swansea with clear skies and today's high is 36° with an overnight low of 20°. The sun rises at 06:28 and sets at 19:31, giving 13h 03m of daylight. Over the coming week highs range from 38° to 40° - a steady stretch with little day-to-day change.

Swansea is in Illinois, United States, sitting 166 m above sea level, with a population of about 14,000. Local time is America/Chicago (UTC−5), and every time on this page is shown in it.

Next 24 hours - temperature

20° 29° 37° 36° 20° 00:00 · 22.9° · 0 mm 01:00 · 22.4° · 0 mm 02:00 · 21.8° · 0 mm 03:00 · 21.2° · 0 mm 04:00 · 20.9° · 0 mm 05:00 · 20.6° · 0 mm 06:00 · 20.4° · 0 mm 07:00 · 20.4° · 0 mm 08:00 · 24.1° · 0 mm 09:00 · 27.7° · 0 mm 10:00 · 30.3° · 0 mm 11:00 · 32.4° · 0 mm 12:00 · 34.4° · 0 mm 13:00 · 35.6° · 0 mm 14:00 · 36.1° · 0 mm 15:00 · 36° · 0 mm 16:00 · 35.8° · 0 mm 17:00 · 36.2° · 0 mm 18:00 · 35.3° · 0 mm 19:00 · 33.1° · 0 mm 20:00 · 30.6° · 0 mm 21:00 · 29° · 0 mm 22:00 · 28° · 0 mm 23:00 · 27.7° · 0 mm

Precipitation

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 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

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
00:00 ☀️ 22.9° 24.1° - Clear sky
01:00 ☀️ 22.4° 23.8° - Clear sky
02:00 ☀️ 21.8° 22.8° - Clear sky
03:00 ☀️ 21.2° 22.1° - Clear sky
04:00 ☀️ 20.9° 21.5° - Clear sky
05:00 ☀️ 20.6° 21.2° - Clear sky
06:00 ☀️ 20.4° 20.9° - Clear sky
07:00 ☀️ 20.4° 21.2° - Clear sky
08:00 ☀️ 24.1° 24.2° - Clear sky
09:00 ☀️ 27.7° 27.6° - Clear sky
10:00 ☀️ 30.3° 29.7° - Clear sky
11:00 ☀️ 32.4° 32° - Clear sky

Next 16 days

Today☀️ 36°20° Tue 1☁️ 39°24° Wed 2☀️ 39°24° Thu 3☀️ 40°25° Fri 4☁️ 39°26°0.1mm Sat 5⛅ 39°25° Sun 6🌦️ 38°23°2.1mm Mon 7☁️ 40°18° Tue 8🌦️ 34°19°0.6mm Wed 9☀️ 30°15° Thu 10☀️ 36°15° Fri 11☀️ 28°13° Sat 12⛅ 28°9° Sun 13☀️ 38°13° Mon 14☀️ 39°12° Tue 15🌦️ 0°0°
☀️ TodayAugust 31st Avg 28° Low 20° at 06:00 High 36° at 17:00 Wind ~19 km/h
Clear
00:00 23°
02:00 22°
04:00 21°
06:00 20°
08:00 24°
10:00 30°
12:00 34°
14:00 36°
16:00 36°
18:00 35°
20:00 31°
22:00 28°
☁️ TuesdaySeptember 1st Avg 31° Low 24° at 07:00 High 39° at 15:00 Wind ~18 km/h
Clear Cloudy Clear
00:00 28°
02:00 26°
04:00 25°
06:00 24°
08:00 27°
10:00 34°
12:00 37°
14:00 39°
16:00 39°
18:00 37°
20:00 31°
22:00 29°
☀️ WednesdaySeptember 2nd Avg 31° Low 24° at 06:00 High 39° at 16:00 Wind ~20 km/h
Clear
00:00 27°
02:00 26°
04:00 25°
06:00 24°
08:00 27°
10:00 33°
12:00 37°
14:00 38°
16:00 39°
18:00 37°
20:00 32°
22:00 30°
☀️ ThursdaySeptember 3rd Avg 32° Low 25° at 06:00 High 40° at 16:00 Wind ~20 km/h
Clear
00:00 29°
02:00 27°
04:00 26°
06:00 25°
08:00 27°
10:00 34°
12:00 37°
14:00 39°
16:00 40°
18:00 38°
20:00 32°
22:00 31°
☁️ FridaySeptember 4th Avg 30° Low 26° at 04:00 High 39° at 16:00 0.1 mm rain Wind ~17 km/h
Clear Cloudy Clear
00:00 32°
02:00 27°
04:00 26°
06:00 26°
08:00 28°
10:00 29°
12:00 31°
14:00 37°
16:00 39°
18:00 34°
20:00 30°
22:00 29°
⛅ SaturdaySeptember 5th Avg 31° Low 25° at 06:00 High 39° at 15:00 Wind ~14 km/h
Clear Partly Cloudy Partly Cloudy Partly Cloudy Clear
00:00 27°
02:00 26°
04:00 27°
06:00 25°
08:00 27°
10:00 33°
12:00 36°
14:00 38°
16:00 38°
18:00 34°
20:00 30°
22:00 28°
🌦️ SundaySeptember 6th Avg 29° Low 23° at 23:00 High 38° at 15:00 2.1 mm rain Wind ~12 km/h
Cloudy Rain Partly Cloudy Rain
00:00 27°
02:00 26°
04:00 25°
06:00 24°
08:00 25° 0.2mm
10:00 28° 0.2mm
12:00 34°
14:00 37°
16:00 38°
18:00 35°
20:00 30° 0.5mm
22:00 24° 0.5mm
☁️ MondaySeptember 7th Avg 30° Low 18° at 06:00 High 40° at 16:00 Feels 38° Wind ~32 km/h
Cloudy Partly Cloudy Cloudy
00:00 22°
02:00 22°
04:00 20°
06:00 18°
08:00 21°
10:00 28°
12:00 35°
14:00 39°
16:00 40°
18:00 38°
20:00 36°
22:00 35°
🌦️ TuesdaySeptember 8th Avg 28° Low 19° at 23:00 High 34° at 00:00 0.6 mm rain Feels 30° Wind ~34 km/h
Cloudy Rain Cloudy Clear
00:00 34°
02:00 33°
04:00 33°
06:00 28° 0.2mm
08:00 26°
10:00 29°
12:00 30°
14:00 31°
16:00 30°
18:00 25°
20:00 21°
22:00 20°
☀️ WednesdaySeptember 9th Avg 22° Low 15° at 06:00 High 30° at 16:00 Feels 26° Wind ~22 km/h
Clear
00:00 19°
02:00 18°
04:00 16°
06:00 15°
08:00 17°
10:00 22°
12:00 26°
14:00 29°
16:00 30°
18:00 27°
20:00 23°
22:00 19°
☀️ ThursdaySeptember 10th Avg 26° Low 15° at 06:00 High 36° at 16:00 Feels 33° Wind ~18 km/h
Clear
00:00 18°
02:00 17°
04:00 16°
06:00 15°
08:00 19°
10:00 26°
12:00 31°
14:00 35°
16:00 36°
18:00 33°
20:00 30°
22:00 29°
☀️ FridaySeptember 11th Avg 22° Low 13° at 23:00 High 28° at 14:00 Feels 24° Wind ~29 km/h
Partly Cloudy Clear
00:00 24°
02:00 21°
04:00 19°
06:00 17°
08:00 18°
10:00 24°
12:00 27°
14:00 28°
16:00 27°
18:00 24°
20:00 20°
22:00 14°
⛅ SaturdaySeptember 12th Avg 18° Low 9° at 06:00 High 28° at 15:00 Feels 25° Wind ~13 km/h
Clear Partly Cloudy
00:00 12°
02:00 11°
04:00 10°
06:00 9°
08:00 12°
10:00 19°
12:00 24°
14:00 28°
16:00 28°
18:00 25°
20:00 21°
22:00 18°
☀️ SundaySeptember 13th Avg 24° Low 13° at 06:00 High 38° at 15:00 Feels 33° Wind ~20 km/h
Clear
00:00 16°
02:00 15°
04:00 15°
06:00 13°
08:00 17°
10:00 26°
12:00 33°
14:00 37°
16:00 38°
18:00 33°
20:00 26°
22:00 19°
☀️ MondaySeptember 14th Avg 25° Low 12° at 06:00 High 39° at 16:00 Feels 33° Wind ~23 km/h
Clear
00:00 17°
02:00 15°
04:00 13°
06:00 12°
08:00 15°
10:00 24°
12:00 32°
14:00 37°
16:00 39°
18:00 34°
20:00 30°
22:00 27°
🌦️ TuesdaySeptember 15th Avg 26° Low 0° at 01:00 High 0° at 07:00 Feels 26° Wind ~30 km/h
Partly Cloudy Cloudy Rain Cloudy Unknown
00:00 25°
02:00 25°
04:00 26°
06:00 28°
08:00 28° 0.1mm
10:00 26° 0.1mm
12:00 25°
14:00 0°
16:00 0°
18:00 0°
20:00 0°
22:00 0°

Sun

☀️ Sunrise 06:28 · Sunset 19:31

13h 03m of daylight · America/Chicago

Air quality

PM2.5 5.3 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Belleville · 1.6 km Summit · 2.4 km Royal Heights · 2.4 km Avery Hill · 3.9 km Gartside · 4.3 km Miller · 4.5 km

Tools for Swansea

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

Common questions about Swansea weather

Will it rain in Swansea today?

No rain is in the forecast for Swansea today.

What is the temperature in Swansea right now?

It is 23° in Swansea right now. Today runs between a low of 20° and a high of 36°.

What time is sunrise and sunset in Swansea?

The sun rises at 06:28 and sets at 19:31 local time in Swansea today, giving 13h 03m of daylight.

What is the air quality in Swansea?

PM2.5 in Swansea is currently 5.3 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 Swansea 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 Swansea 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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