New York, NY 75° Los Angeles, CA 71° 🌤️ Chicago, IL 🌤️ Houston, TX Miami, FL 85° Phoenix, AZ 93° 🌤️ Seattle, WA Denver, CO 65° Toronto, ON 70° Vancouver, BC 60°
WeatherLive › Illinois › Markham

Markham, IL Weather (60428)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherMarkham · 8:41 AM CDT
85° | 72°
74°F
Feels like 81°
Fog
WindNW 4 mph · Gusts 7 mph
Precip74% · 0.13 in
Humidity96% · Dew point 73°
UV index7 High
Air Quality24 Good
Pressure29.94 inHg
Visibility1 mi
Sunrise / Sunset6:00 AM · 7:49 PM · 13h 49m

Weather map — Markham

Full radar →
Now
74°
29%
4 mph
09:00
75°
21%
1 mph
10:00
76°
21%
2 mph
11:00
79°
19%
6 mph
12:00
82°
24%
8 mph
13:00
83°
21%
7 mph
14:00
84°
14%
7 mph
15:00
85°
10%
7 mph
16:00
85°
11%
8 mph
17:00
83°
17%
7 mph
18:00
80°
22%
6 mph
19:00
78°
9%
4 mph
20:00
75°
11%
4 mph
21:00
74°
12%
4 mph
22:00
73°
12%
5 mph
23:00
72°
12%
4 mph
00:00
71°
14%
4 mph
01:00
71°
14%
3 mph
02:00
70°
13%
3 mph
03:00
69°
13%
4 mph
04:00
69°
13%
4 mph
05:00
68°
13%
4 mph
06:00
67°
15%
4 mph
07:00
68°
13%
5 mph

Today · Sun 8/16

High 85°
74% / 0.13 in

Showers. Winds NW at 8 mph.

Tonight · Sun 8/16

Low 67°
12% / –

Sunny. Winds NW at 4 mph.

Tomorrow · Mon 8/17

80° | 67°
36% / 0.02 in

Sunny. Winds E at 6 mph.

7-day trend

Markham · temperature + precipitation

10-day forecast

Updated 8:41 AM

Details & indices

Wind
4 mph NW
Gusts 7 mph
Humidity
96%
Dew point 73°
Pressure
29.94 inHg
Rising
UV index
7 — High
High today
Air Quality
Good
AQI 24 · US EPA
Allergy
Low
Mugwort
Visibility
1 mi
Reduced
Allergy — Markham

🌿 Conditions right now

View all →
Birch
None
Grass
Low
Oak
None
Alder
None
Hazel
None
Mugwort
Low
Ragweed
Low

Sun & moon

Sunrise6:00 AM
Sunset7:49 PM
Length of day13h 49m
Moonrise10:28 AM
Moonset9:33 PM
Moon phase🌒 Waxing Crescent · 17%
Next full moonAug 27 Sturgeon Moon
Latitude41.5936°N
Longitude-87.6948°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Poor
Line-drying weather
Grilling
Fair
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
🌤️
Chicago
—
— 🌤️
Aurora
—
— 🌤️
Rockford
—
—
Joliet
Fog
74°
Naperville
Showers
72°
Data sources · Sunday, August 16
Where the Markham forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 41.5936°N, -87.6948°.
NBM + global weather models
Updated: 8:41 AM
Weather in Markham
The 10-day span for Markham runs from a high near 85° on Sunday down to 63° overnight on Thursday. Models drop roughly 1.4 in of precipitation across the stretch — watch Friday (92%). No active NWS alerts at the moment — quiet on the hazards front. Right now Markham is running about 5° warmer than Grand Rapids. Longer view: variable mid-latitude weather in every season.
Markham, IL · Elev 620 ft · 41.59°N, 87.69°W · Illinois · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 8:41 AM