Cities / United States / Illinois

21°

☁️ Markham weather

Overcast. .

Feels like 24° Wind 4 km/h SE Humidity 91% Pressure 1018 hPa UV 1 Air Good ☀ 05:59 - 19:50
⚠ Flood Watch · Severe

Flood Watch issued August 15 at 3:05AM CDT until August 15 at 10:00AM CDT by NWS Chicago IL

Right now it is 21° in Markham with overcast skies, it feels more like 24°, today's high is 28° with an overnight low of 21° and about 1.1 mm of rain is expected. The sun rises at 05:59 and sets at 19:50, giving 13h 51m of daylight. Over the coming week highs range from 26° to 29° - a steady stretch with little day-to-day change.

Markham is in Illinois, United States, sitting 189 m above sea level, with a population of about 13,000. Local time is America/Chicago (UTC−5), and every time on this page is shown in it.

Next 24 hours - temperature

21° 25° 29° 28° 21° 04:00 · 21.5° · 0 mm 05:00 · 21.2° · 0 mm 06:00 · 21.3° · 0 mm 07:00 · 21.6° · 0 mm 08:00 · 22.4° · 0 mm 09:00 · 22.9° · 0 mm 10:00 · 23.7° · 0 mm 11:00 · 24.3° · 0 mm 12:00 · 25° · 0 mm 13:00 · 26.7° · 0 mm 14:00 · 27.9° · 0 mm 15:00 · 28.2° · 0 mm 16:00 · 28.3° · 0 mm 17:00 · 27.5° · 0 mm 18:00 · 26.7° · 0 mm 19:00 · 25.8° · 1.1 mm 20:00 · 25.2° · 0 mm 21:00 · 24.2° · 0 mm 22:00 · 23.8° · 0 mm 23:00 · 23.8° · 0 mm 00:00 · 23.5° · 0 mm 01:00 · 23.6° · 0 mm 02:00 · 22.9° · 0 mm 03:00 · 22.3° · 0 mm

Precipitation

04:00 · 0 mm 04:00 05:00 · 0 mm 06:00 · 0 mm 07:00 · 0 mm 07:00 08:00 · 0 mm 09:00 · 0 mm 10:00 · 0 mm 10:00 11:00 · 0 mm 12:00 · 0 mm 13:00 · 0 mm 13:00 14:00 · 0 mm 15:00 · 0 mm 16:00 · 0 mm 16:00 17:00 · 0 mm 18:00 · 0 mm 19:00 · 1.1 mm 19:00 20:00 · 0 mm 21:00 · 0 mm 22:00 · 0 mm 22:00 23:00 · 0 mm 00:00 · 0 mm 01:00 · 0 mm 01:00 02:00 · 0 mm 03:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
04:00 ☁️ 21.5° 23.8° - Overcast
05:00 ☁️ 21.2° 24° - Overcast
06:00 ☁️ 21.3° 24.6° - Overcast
07:00 ☁️ 21.6° 24.2° - Overcast
08:00 ☁️ 22.4° 25.2° - Overcast
09:00 ☁️ 22.9° 26.4° - Overcast
10:00 ☁️ 23.7° 26.9° - Overcast
11:00 ☁️ 24.3° 27.5° - Overcast
12:00 ☁️ 25° 29.4° - Overcast
13:00 ☁️ 26.7° 31.1° - Overcast
14:00 ☁️ 27.9° 31.3° - Overcast
15:00 ☁️ 28.2° 31.3° - Overcast

Next 16 days

Today🌧️ 28°21°1.1mm Sun 16🌧️ 29°21°1.8mm Mon 17☀️ 26°20° Tue 18☁️ 28°18° Wed 19🌦️ 26°19°1.7mm Thu 20☁️ 28°18° Fri 21☀️ 28°18° Sat 22☀️ 29°17° Sun 23☀️ 30°18° Mon 24🌦️ 32°20°0.9mm Tue 25☀️ 31°19° Wed 26⛅ 19°15°0.3mm Thu 27☀️ 21°14° Fri 28☀️ 24°12° Sat 29☁️ 24°14° Sun 30🌧️ 0°0°
🌧️ TodayAugust 15th Avg 24° Low 21° at 05:00 High 28° at 16:00 1.1 mm rain Feels 31° Wind ~11 km/h
Cloudy Cloudy
00:00 23°
02:00 23°
04:00 22°
06:00 21°
08:00 22°
10:00 24°
12:00 25°
14:00 28°
16:00 28°
18:00 27°
20:00 25°
22:00 24°
🌧️ SundayAugust 16th Avg 25° Low 21° at 23:00 High 29° at 15:00 1.8 mm rain Feels 31° Wind ~18 km/h
Cloudy Cloudy
00:00 24°
02:00 23°
04:00 22°
06:00 22°
08:00 23°
10:00 25° 1.8mm
12:00 27°
14:00 29°
16:00 29°
18:00 27°
20:00 24°
22:00 22°
☀️ MondayAugust 17th Avg 22° Low 20° at 23:00 High 26° at 15:00 Feels 24° Wind ~13 km/h
Clear
00:00 21°
02:00 22°
04:00 21°
06:00 20°
08:00 21°
10:00 24°
12:00 25°
14:00 26°
16:00 26°
18:00 24°
20:00 21°
22:00 20°
☁️ TuesdayAugust 18th Avg 23° Low 18° at 06:00 High 28° at 14:00 Wind ~18 km/h
Clear Cloudy Cloudy
00:00 19°
02:00 19°
04:00 18°
06:00 18°
08:00 20°
10:00 24°
12:00 27°
14:00 28°
16:00 28°
18:00 25°
20:00 24°
22:00 23°
🌦️ WednesdayAugust 19th Avg 22° Low 19° at 23:00 High 26° at 14:00 1.7 mm rain Wind ~17 km/h
Rain Cloudy Clear
00:00 22°
02:00 21° 0.3mm
04:00 20° 0.4mm
06:00 20°
08:00 21° 0.1mm
10:00 22°
12:00 25°
14:00 26°
16:00 25°
18:00 23°
20:00 21°
22:00 20°
☁️ ThursdayAugust 20th Avg 23° Low 18° at 06:00 High 28° at 15:00 Feels 26° Wind ~13 km/h
Cloudy Partly Cloudy Cloudy
00:00 19°
02:00 19°
04:00 19°
06:00 18°
08:00 20°
10:00 24°
12:00 26°
14:00 28°
16:00 28°
18:00 25°
20:00 23°
22:00 21°
☀️ FridayAugust 21st Avg 23° Low 18° at 05:00 High 28° at 15:00 Feels 26° Wind ~12 km/h
Clear Clear
00:00 20°
02:00 19°
04:00 18°
06:00 18°
08:00 20°
10:00 24°
12:00 27°
14:00 28°
16:00 28°
18:00 26°
20:00 23°
22:00 21°
☀️ SaturdayAugust 22nd Avg 23° Low 17° at 06:00 High 29° at 15:00 Wind ~12 km/h
Clear
00:00 19°
02:00 18°
04:00 18°
06:00 17°
08:00 20°
10:00 25°
12:00 28°
14:00 29°
16:00 29°
18:00 27°
20:00 24°
22:00 22°
☀️ SundayAugust 23rd Avg 24° Low 18° at 06:00 High 30° at 15:00 Feels 28° Wind ~15 km/h
Clear Partly Cloudy
00:00 21°
02:00 20°
04:00 19°
06:00 18°
08:00 20°
10:00 26°
12:00 29°
14:00 30°
16:00 30°
18:00 27°
20:00 25°
22:00 22°
🌦️ MondayAugust 24th Avg 24° Low 20° at 06:00 High 32° at 16:00 0.9 mm rain Wind ~16 km/h
Clear Rain Cloudy Partly Cloudy Clear
00:00 22°
02:00 21°
04:00 21°
06:00 20° 0.1mm
08:00 21° 0.2mm
10:00 23° 0.2mm
12:00 27°
14:00 30°
16:00 32°
18:00 29°
20:00 25°
22:00 23°
☀️ TuesdayAugust 25th Avg 24° Low 19° at 23:00 High 31° at 13:00 Feels 28° Wind ~24 km/h
Clear Cloudy Clear
00:00 22°
02:00 21°
04:00 20°
06:00 20°
08:00 22°
10:00 27°
12:00 30°
14:00 30°
16:00 28°
18:00 26°
20:00 23°
22:00 20°
⛅ WednesdayAugust 26th Avg 17° Low 15° at 23:00 High 19° at 16:00 0.3 mm rain Feels 16° Wind ~22 km/h
Partly Cloudy Clear Rain Clear
00:00 19°
02:00 18°
04:00 17°
06:00 16°
08:00 17°
10:00 19°
12:00 18°
14:00 18° 0.1mm
16:00 19° 0.1mm
18:00 18°
20:00 17°
22:00 15°
☀️ ThursdayAugust 27th Avg 17° Low 14° at 06:00 High 21° at 15:00 Feels 16° Wind ~15 km/h
Clear
00:00 15°
02:00 14°
04:00 14°
06:00 14°
08:00 15°
10:00 19°
12:00 20°
14:00 21°
16:00 20°
18:00 19°
20:00 17°
22:00 15°
☀️ FridayAugust 28th Avg 18° Low 12° at 06:00 High 24° at 14:00 Feels 21° Wind ~13 km/h
Clear
00:00 14°
02:00 13°
04:00 13°
06:00 12°
08:00 14°
10:00 19°
12:00 23°
14:00 24°
16:00 24°
18:00 22°
20:00 19°
22:00 17°
☁️ SaturdayAugust 29th Avg 19° Low 14° at 06:00 High 24° at 14:00 Feels 21° Wind ~14 km/h
Cloudy Partly Cloudy Cloudy Partly Cloudy
00:00 16°
02:00 15°
04:00 14°
06:00 14°
08:00 16°
10:00 20°
12:00 23°
14:00 24°
16:00 24°
18:00 23°
20:00 21°
22:00 19°
🌧️ SundayAugust 30th Avg 19° Low 0° at 06:00 High 0° at 10:00 Feels 20° Wind ~15 km/h
Clear Cloudy Rain Unknown
00:00 18°
02:00 17°
04:00 17°
06:00 17°
08:00 19°
10:00 24°
12:00 22° 0.1mm
14:00 21° 1mm
16:00 19° 1mm
18:00 18° 0.9mm
20:00 0°
22:00 0°

Sun

☀️ Sunrise 05:59 · Sunset 19:50

13h 51m of daylight · America/Chicago

Air quality

PM2.5 5.8 µg/m³ - Good

No reason to change your plans - open the windows.

Source: Copernicus CAMS, updated hourly.

Nearby

Hazel Crest · 2.4 km South Harvey · 2.9 km Country Club Hills · 3.6 km Midlothian · 4 km Oak Forest · 4.2 km West Harvey · 4.4 km

Tools for Markham

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

Common questions about Markham weather

Will it rain in Markham today?

Yes - about 1.1 mm of rain is expected in Markham today.

What is the temperature in Markham right now?

It is 21° in Markham right now, though it feels closer to 24°. Today runs between a low of 21° and a high of 28°.

What time is sunrise and sunset in Markham?

The sun rises at 05:59 and sets at 19:50 local time in Markham today, giving 13h 51m of daylight.

What is the air quality in Markham?

PM2.5 in Markham is currently 5.8 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 Markham 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 Markham 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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