10-day forecast for Plum Valley, IL: 63° to 89°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
88°
Best day: Tuesday, August 18
88° · 0.75 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1088° / 70°0.75
Morning75°feels 77°
Afternoon88°feels 95°
Evening74°feels 76°
Overnight73°feels 75°
88 °
Plum Valley, Monday, 10 August
Heavy rain. High 88°, low 70°.
Pressure29.88 inHg
Wind4.4 mph W
Humidity65%
Visibility6.2 mi
Dew point72°
Tue, 1183° / 69°0.64
Morning73°feels 74°
Afternoon69°feels 70°
Evening72°feels 73°
Overnight69°feels 70°
83 °
Plum Valley, Tuesday, 11 August
Heavy rain. High 83°, low 69°.
Pressure29.80 inHg
Wind9.1 mph S
Humidity84%
Visibility6.2 mi
Dew point71°
Wed, 1283° / 67°0
Morning71°feels 72°
Afternoon83°feels 85°
Evening71°feels 72°
Overnight68°feels 69°
83 °
Plum Valley, Wednesday, 12 August
Overcast. High 83°, low 67°.
Pressure29.88 inHg
Wind4.7 mph N
Humidity61%
Visibility6.2 mi
Dew point66°
Thu, 1382° / 64°0.13
Morning68°feels 68°
Afternoon82°feels 83°
Evening70°feels 71°
Overnight66°feels 66°
82 °
Plum Valley, Thursday, 13 August
Light rain. High 82°, low 64°.
Pressure29.97 inHg
Wind8.1 mph SE
Humidity48%
Visibility6.2 mi
Dew point58°
Fri, 1478° / 68°0.17
Morning70°feels 71°
Afternoon74°feels 76°
Evening76°feels 77°
Overnight71°feels 73°
78 °
Plum Valley, Friday, 14 August
Light rain. High 78°, low 68°.
Pressure30.03 inHg
Wind7 mph E
Humidity91%
Visibility—
Dew point71°
Sat, 1589° / 70°0.16
Morning75°feels 78°
Afternoon86°feels 93°
Evening83°feels 91°
Overnight79°feels 82°
89 °
Plum Valley, Saturday, 15 August
Light rain. High 89°, low 70°.
Pressure29.91 inHg
Wind10.2 mph SE
Humidity61%
Visibility—
Dew point70°
Sun, 1682° / 69°0.01
Morning75°feels 76°
Afternoon76°feels 77°
Evening70°feels 70°
Overnight70°feels 71°
82 °
Plum Valley, Sunday, 16 August
Light rain. High 82°, low 69°.
Pressure29.97 inHg
Wind12.9 mph SW
Humidity66%
Visibility—
Dew point65°
Mon, 1780° / 64°0
Morning69°feels 69°
Afternoon75°feels 76°
Evening76°feels 77°
Overnight72°feels 73°
80 °
Plum Valley, Monday, 17 August
Overcast. High 80°, low 64°.
Pressure30.00 inHg
Wind9.7 mph SE
Humidity68%
Visibility—
Dew point63°
Tue, 1888° / 74°0
Morning83°feels 85°
Afternoon87°feels 91°
Evening81°feels 85°
Overnight77°feels 78°
88 °
Plum Valley, Tuesday, 18 August
Light rain. High 88°, low 74°.
Pressure29.85 inHg
Wind12.1 mph W
Humidity53%
Visibility—
Dew point68°
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 Plum Valley, 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.