10-day forecast for Preston Heights, IL: 63° to 91°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
86°
Best day: Tuesday, August 18
91° · 0.42 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1091° / 74°0.42
Morning77°feels 79°
Afternoon91°feels 104°
Evening79°feels 79°
Overnight75°feels 77°
91 °
Preston Heights, Monday, 10 August
Rain. High 91°, low 74°.
Pressure29.88 inHg
Wind4.9 mph W
Humidity74%
Visibility6.2 mi
Dew point75°
Tue, 1186° / 69°0.25
Morning73°feels 75°
Afternoon69°feels 70°
Evening75°feels 77°
Overnight74°feels 75°
86 °
Preston Heights, Tuesday, 11 August
Rain. High 86°, low 69°.
Pressure29.85 inHg
Wind15.6 mph NW
Humidity85%
Visibility6.2 mi
Dew point73°
Wed, 1283° / 67°0
Morning71°feels 72°
Afternoon84°feels 88°
Evening72°feels 72°
Overnight69°feels 70°
83 °
Preston Heights, Wednesday, 12 August
Partly cloudy. High 83°, low 67°.
Pressure29.88 inHg
Wind2.7 mph N
Humidity64%
Visibility6.2 mi
Dew point69°
Thu, 1380° / 64°0.22
Morning68°feels 68°
Afternoon81°feels 82°
Evening69°feels 70°
Overnight66°feels 66°
80 °
Preston Heights, Thursday, 13 August
Light rain. High 80°, low 64°.
Pressure29.97 inHg
Wind8.5 mph SE
Humidity55%
Visibility6.2 mi
Dew point61°
Fri, 1478° / 68°0.21
Morning70°feels 71°
Afternoon74°feels 76°
Evening76°feels 78°
Overnight71°feels 72°
78 °
Preston Heights, Friday, 14 August
Light rain. High 78°, low 68°.
Pressure30.03 inHg
Wind9.7 mph E
Humidity90%
Visibility—
Dew point70°
Sat, 1590° / 71°0.19
Morning76°feels 80°
Afternoon87°feels 96°
Evening83°feels 93°
Overnight78°feels 78°
90 °
Preston Heights, Saturday, 15 August
Rain. High 90°, low 71°.
Pressure29.91 inHg
Wind11.3 mph E
Humidity62%
Visibility—
Dew point71°
Sun, 1680° / 69°0.02
Morning73°feels 74°
Afternoon73°feels 74°
Evening71°feels 72°
Overnight70°feels 70°
80 °
Preston Heights, Sunday, 16 August
Light rain. High 80°, low 69°.
Pressure29.97 inHg
Wind12.9 mph NW
Humidity79%
Visibility—
Dew point66°
Mon, 1776° / 63°0
Morning67°feels 68°
Afternoon75°feels 75°
Evening74°feels 75°
Overnight71°feels 72°
76 °
Preston Heights, Monday, 17 August
Overcast. High 76°, low 63°.
Pressure30.00 inHg
Wind10.9 mph SE
Humidity75%
Visibility—
Dew point65°
Tue, 1886° / 74°0.01
Morning79°feels 82°
Afternoon84°feels 89°
Evening79°feels 79°
Overnight75°feels 76°
86 °
Preston Heights, Tuesday, 18 August
Light rain. High 86°, low 74°.
Pressure29.85 inHg
Wind12.5 mph SE
Humidity67%
Visibility—
Dew point71°
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 Preston Heights, 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.