10-day forecast for Deer Plain, IL: 67° to 103°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
103°
Best day: Tuesday, August 11
84° · 1.09 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 10100° / 76°0.01
Morning80°feels 80°
Afternoon98°feels 104°
Evening90°feels 93°
Overnight83°feels 86°
100 °
Deer Plain, Monday, 10 August
Light rain. High 100°, low 76°.
Pressure29.91 inHg
Wind12.4 mph SW
Humidity45%
Visibility6.2 mi
Dew point69°
Tue, 11103° / 77°0.03
Morning78°feels 79°
Afternoon100°feels 105°
Evening92°feels 95°
Overnight79°feels 79°
103 °
Deer Plain, Tuesday, 11 August
Light rain. High 103°, low 77°.
Pressure29.85 inHg
Wind13.3 mph SW
Humidity43%
Visibility6.2 mi
Dew point69°
Wed, 1290° / 75°0.26
Morning76°feels 77°
Afternoon89°feels 96°
Evening78°feels 80°
Overnight74°feels 75°
90 °
Deer Plain, Wednesday, 12 August
Rain. High 90°, low 75°.
Pressure29.85 inHg
Wind3.6 mph NW
Humidity70%
Visibility6.2 mi
Dew point71°
Thu, 1384° / 68°1.09
Morning75°feels 78°
Afternoon83°feels 87°
Evening74°feels 75°
Overnight69°feels 70°
84 °
Deer Plain, Thursday, 13 August
Heavy rain. High 84°, low 68°.
Pressure29.91 inHg
Wind16.2 mph E
Humidity65%
Visibility—
Dew point70°
Fri, 1476° / 69°0.46
Morning71°feels 72°
Afternoon76°feels 77°
Evening73°feels 74°
Overnight70°feels 71°
76 °
Deer Plain, Friday, 14 August
Rain. High 76°, low 69°.
Pressure30.03 inHg
Wind11.7 mph E
Humidity82%
Visibility—
Dew point69°
Sat, 1580° / 68°0.24
Morning71°feels 72°
Afternoon79°feels 79°
Evening76°feels 77°
Overnight71°feels 72°
80 °
Deer Plain, Saturday, 15 August
Light rain. High 80°, low 68°.
Pressure30.15 inHg
Wind16.3 mph SE
Humidity70%
Visibility—
Dew point67°
Sun, 1680° / 67°0.02
Morning71°feels 72°
Afternoon78°feels 80°
Evening76°feels 78°
Overnight71°feels 72°
80 °
Deer Plain, Sunday, 16 August
Light rain. High 80°, low 67°.
Pressure30.06 inHg
Wind11.6 mph E
Humidity81%
Visibility—
Dew point71°
Mon, 1783° / 69°0.11
Morning72°feels 73°
Afternoon79°feels 79°
Evening77°feels 79°
Overnight72°feels 73°
83 °
Deer Plain, Monday, 17 August
Light rain. High 83°, low 69°.
Pressure30.03 inHg
Wind8 mph NE
Humidity77%
Visibility—
Dew point70°
Tue, 1883° / 70°0.05
Morning72°feels 73°
Afternoon80°feels 81°
Evening81°feels 85°
Overnight75°feels 76°
83 °
Deer Plain, Tuesday, 18 August
Light rain. High 83°, low 70°.
Pressure30.00 inHg
Wind9.6 mph SW
Humidity84%
Visibility—
Dew point73°
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 Deer Plain, 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.