10-day forecast for Greenville, IL: 63° to 99°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
99°
Best day: Monday, August 10
83° · 0.61 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1099° / 76°0
Morning79°feels 79°
Afternoon99°feels 112°
Evening88°feels 98°
Overnight81°feels 86°
99 °
Greenville, Monday, 10 August
Clear. High 99°, low 76°.
Pressure29.97 inHg
Wind12.2 mph SW
Humidity63%
Visibility6.2 mi
Dew point74°
Tue, 1195° / 73°0.02
Morning76°feels 77°
Afternoon93°feels 104°
Evening83°feels 88°
Overnight76°feels 77°
95 °
Greenville, Tuesday, 11 August
Light rain. High 95°, low 73°.
Pressure29.91 inHg
Wind11.9 mph SW
Humidity61%
Visibility6.2 mi
Dew point73°
Wed, 1290° / 74°0.02
Morning76°feels 77°
Afternoon85°feels 94°
Evening82°feels 87°
Overnight84°feels 85°
90 °
Greenville, Wednesday, 12 August
Light rain. High 90°, low 74°.
Pressure29.83 inHg
Wind1 mph W
Humidity70%
Visibility6.2 mi
Dew point74°
Thu, 1383° / 70°0.61
Morning71°feels 72°
Afternoon82°feels 87°
Evening80°feels 85°
Overnight78°feels 79°
83 °
Greenville, Thursday, 13 August
Rain. High 83°, low 70°.
Pressure29.88 inHg
Wind14.8 mph S
Humidity77%
Visibility—
Dew point72°
Fri, 1480° / 70°0.01
Morning73°feels 75°
Afternoon80°feels 84°
Evening76°feels 78°
Overnight72°feels 73°
80 °
Greenville, Friday, 14 August
Light rain. High 80°, low 70°.
Pressure30.00 inHg
Wind15.7 mph E
Humidity80%
Visibility—
Dew point72°
Sat, 1587° / 69°0
Morning73°feels 76°
Afternoon83°feels 89°
Evening80°feels 86°
Overnight75°feels 76°
87 °
Greenville, Saturday, 15 August
Overcast. High 87°, low 69°.
Pressure30.09 inHg
Wind12.2 mph E
Humidity75%
Visibility—
Dew point72°
Sun, 1687° / 74°0
Morning79°feels 82°
Afternoon84°feels 92°
Evening78°feels 78°
Overnight75°feels 76°
87 °
Greenville, Sunday, 16 August
Clear. High 87°, low 74°.
Pressure30.00 inHg
Wind12.7 mph N
Humidity73%
Visibility—
Dew point74°
Mon, 1780° / 63°0
Morning67°feels 67°
Afternoon77°feels 78°
Evening74°feels 74°
Overnight70°feels 71°
80 °
Greenville, Monday, 17 August
Partly cloudy. High 80°, low 63°.
Pressure30.09 inHg
Wind8.5 mph NE
Humidity62%
Visibility—
Dew point62°
Tue, 1888° / 65°0.03
Morning70°feels 71°
Afternoon81°feels 85°
Evening80°feels 84°
Overnight73°feels 74°
88 °
Greenville, Tuesday, 18 August
Light rain. High 88°, low 65°.
Pressure29.85 inHg
Wind12.3 mph E
Humidity66%
Visibility—
Dew point67°
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 Greenville, 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.