10-day forecast for Harvey, IL: 62° to 88°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
83°
Best day: Saturday, August 8
88° · 0.34 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0988° / 65°0.12
Morning71°feels 71°
Afternoon87°feels 94°
Evening83°feels 92°
Overnight68°feels 68°
88 °
Harvey, Sunday, 9 August
Rain. High 88°, low 65°.
Pressure29.97 inHg
Wind12.2 mph S
Humidity66%
Visibility6.2 mi
Dew point72°
Mon, 1088° / 72°0.34
Morning73°feels 75°
Afternoon87°feels 94°
Evening79°feels 79°
Overnight76°feels 78°
88 °
Harvey, Monday, 10 August
Rain. High 88°, low 72°.
Pressure29.91 inHg
Wind2.1 mph S
Humidity62%
Visibility6.2 mi
Dew point72°
Tue, 1183° / 73°0.08
Morning76°feels 78°
Afternoon82°feels 86°
Evening76°feels 78°
Overnight73°feels 75°
83 °
Harvey, Tuesday, 11 August
Light rain. High 83°, low 73°.
Pressure29.80 inHg
Wind11.3 mph SW
Humidity86%
Visibility6.2 mi
Dew point72°
Wed, 1284° / 69°0.01
Morning73°feels 74°
Afternoon82°feels 84°
Evening74°feels 75°
Overnight70°feels 71°
84 °
Harvey, Wednesday, 12 August
Light rain. High 84°, low 69°.
Pressure29.85 inHg
Wind4.7 mph N
Humidity53%
Visibility6.2 mi
Dew point65°
Thu, 1376° / 66°0
Morning69°feels 68°
Afternoon75°feels 75°
Evening69°feels 69°
Overnight66°feels 66°
76 °
Harvey, Thursday, 13 August
Overcast. High 76°, low 66°.
Pressure30.00 inHg
Wind7.1 mph E
Humidity47%
Visibility—
Dew point53°
Fri, 1480° / 62°0
Morning68°feels 68°
Afternoon79°feels 79°
Evening71°feels 71°
Overnight67°feels 66°
80 °
Harvey, Friday, 14 August
Clear. High 80°, low 62°.
Pressure30.09 inHg
Wind9.7 mph NE
Humidity38%
Visibility—
Dew point50°
Sat, 1571° / 64°0.01
Morning65°feels 65°
Afternoon69°feels 68°
Evening65°feels 65°
Overnight64°feels 64°
71 °
Harvey, Saturday, 15 August
Light rain. High 71°, low 64°.
Pressure30.27 inHg
Wind6.7 mph SW
Humidity55%
Visibility—
Dew point52°
Sun, 1678° / 65°0
Morning69°feels 69°
Afternoon75°feels 75°
Evening72°feels 72°
Overnight67°feels 67°
78 °
Harvey, Sunday, 16 August
Overcast. High 78°, low 65°.
Pressure30.12 inHg
Wind4.8 mph S
Humidity52%
Visibility—
Dew point56°
Mon, 1783° / 66°0
Morning71°feels 72°
Afternoon80°feels 81°
Evening77°feels 77°
Overnight71°feels 71°
83 °
Harvey, Monday, 17 August
Overcast. High 83°, low 66°.
Pressure30.03 inHg
Wind5.3 mph SW
Humidity54%
Visibility—
Dew point60°
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 Harvey, 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.