10-day forecast for Markham, IL: 37° to 81°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
81°
Best day: Monday, October 12
68° · 0.72 in
Worst day: Friday, October 16
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 1077° / 59°0
Morning64°feels 63°
Afternoon76°feels 76°
Evening65°feels 64°
Overnight62°feels 61°
77 °
Markham, Saturday, 10 October
Overcast. High 77°, low 59°.
Pressure30.09 inHg
Wind6.9 mph S
Humidity57%
Visibility6.2 mi
Dew point56°
Sun, 1174° / 57°0.11
Morning59°feels 59°
Afternoon72°feels 73°
Evening63°feels 63°
Overnight60°feels 59°
74 °
Markham, Sunday, 11 October
Rain. High 74°, low 57°.
Pressure29.91 inHg
Wind3.4 mph N
Humidity68%
Visibility6.2 mi
Dew point59°
Mon, 1281° / 61°0
Morning64°feels 64°
Afternoon81°feels 82°
Evening75°feels 76°
Overnight61°feels 61°
81 °
Markham, Monday, 12 October
Overcast. High 81°, low 61°.
Pressure29.83 inHg
Wind9.5 mph SW
Humidity60%
Visibility6.2 mi
Dew point63°
Tue, 1375° / 61°0.01
Morning71°feels 72°
Afternoon67°feels 68°
Evening62°feels 62°
Overnight71°feels 71°
75 °
Markham, Tuesday, 13 October
Light rain. High 75°, low 61°.
Pressure29.85 inHg
Wind8.8 mph W
Humidity84%
Visibility—
Dew point64°
Wed, 1463° / 57°0
Morning59°feels 59°
Afternoon63°feels 62°
Evening60°feels 59°
Overnight60°feels 60°
63 °
Markham, Wednesday, 14 October
Overcast. High 63°, low 57°.
Pressure30.09 inHg
Wind9.4 mph NE
Humidity72%
Visibility—
Dew point53°
Thu, 1560° / 54°0.26
Morning56°feels 54°
Afternoon59°feels 57°
Evening54°feels 54°
Overnight55°feels 54°
60 °
Markham, Thursday, 15 October
Rain. High 60°, low 54°.
Pressure30.03 inHg
Wind10.6 mph S
Humidity52%
Visibility—
Dew point41°
Fri, 1668° / 45°0.72
Morning56°feels 55°
Afternoon54°feels 50°
Evening47°feels 40°
Overnight47°feels 41°
68 °
Markham, Friday, 16 October
Rain. High 68°, low 45°.
Pressure29.83 inHg
Wind20.1 mph W
Humidity45%
Visibility—
Dew point34°
Sat, 1748° / 37°0
Morning40°feels 32°
Afternoon46°feels 40°
Evening44°feels 40°
Overnight41°feels 37°
48 °
Markham, Saturday, 17 October
Overcast. High 48°, low 37°.
Pressure30.30 inHg
Wind17.6 mph W
Humidity38%
Visibility—
Dew point21°
Sun, 1853° / 37°0
Morning41°feels 38°
Afternoon50°feels 47°
Evening48°feels 46°
Overnight45°feels 41°
53 °
Markham, Sunday, 18 October
Partly cloudy. High 53°, low 37°.
Pressure30.36 inHg
Wind9.1 mph SW
Humidity31%
Visibility—
Dew point19°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Markham, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.