10-day forecast for Greenwich, IL: 59° to 91°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
91°
Best day: Monday, August 10
74° · 0.2 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1091° / 73°0.05
Morning77°feels 79°
Afternoon91°feels 103°
Evening79°feels 79°
Overnight78°feels 79°
91 °
Greenwich, Monday, 10 August
Light rain. High 91°, low 73°.
Pressure29.88 inHg
Wind9.1 mph W
Humidity73%
Visibility6.2 mi
Dew point75°
Tue, 1185° / 71°0.09
Morning75°feels 76°
Afternoon85°feels 93°
Evening78°feels 80°
Overnight71°feels 72°
85 °
Greenwich, Tuesday, 11 August
Light rain. High 85°, low 71°.
Pressure29.85 inHg
Wind9.7 mph SW
Humidity71%
Visibility6.2 mi
Dew point73°
Wed, 1282° / 70°0.06
Morning73°feels 75°
Afternoon80°feels 80°
Evening74°feels 76°
Overnight72°feels 74°
82 °
Greenwich, Wednesday, 12 August
Light rain. High 82°, low 70°.
Pressure29.85 inHg
Wind8.1 mph NW
Humidity81%
Visibility6.2 mi
Dew point73°
Thu, 1376° / 61°0.12
Morning67°feels 68°
Afternoon74°feels 75°
Evening63°feels 63°
Overnight66°feels 67°
76 °
Greenwich, Thursday, 13 August
Light rain. High 76°, low 61°.
Pressure30.00 inHg
Wind10.4 mph NE
Humidity70%
Visibility—
Dew point64°
Fri, 1474° / 59°0.2
Morning63°feels 63°
Afternoon72°feels 72°
Evening66°feels 66°
Overnight63°feels 63°
74 °
Greenwich, Friday, 14 August
Rain. High 74°, low 59°.
Pressure30.15 inHg
Wind11.6 mph E
Humidity58%
Visibility—
Dew point55°
Sat, 1575° / 62°0
Morning65°feels 65°
Afternoon74°feels 74°
Evening69°feels 70°
Overnight66°feels 66°
75 °
Greenwich, Saturday, 15 August
Overcast. High 75°, low 62°.
Pressure30.24 inHg
Wind10.8 mph SE
Humidity60%
Visibility—
Dew point58°
Sun, 1679° / 61°0.02
Morning66°feels 66°
Afternoon77°feels 78°
Evening73°feels 74°
Overnight69°feels 69°
79 °
Greenwich, Sunday, 16 August
Light rain. High 79°, low 61°.
Pressure30.09 inHg
Wind7.2 mph E
Humidity71%
Visibility—
Dew point65°
Mon, 1780° / 63°0.01
Morning69°feels 69°
Afternoon78°feels 79°
Evening75°feels 76°
Overnight67°feels 68°
80 °
Greenwich, Monday, 17 August
Light rain. High 80°, low 63°.
Pressure30.09 inHg
Wind6.6 mph E
Humidity67%
Visibility—
Dew point65°
Tue, 1879° / 63°0
Morning68°feels 68°
Afternoon78°feels 78°
Evening74°feels 75°
Overnight68°feels 69°
79 °
Greenwich, Tuesday, 18 August
Partly cloudy. High 79°, low 63°.
Pressure30.03 inHg
Wind6.8 mph SE
Humidity72%
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 Greenwich, 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.