10-day forecast for Riley, IL: 57° to 88°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
81°
Best day: Monday, August 17
82° · 1.07 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1088° / 70°0.22
Morning74°feels 75°
Afternoon87°feels 98°
Evening75°feels 77°
Overnight75°feels 77°
88 °
Riley, Monday, 10 August
Rain. High 88°, low 70°.
Pressure29.88 inHg
Wind6 mph NE
Humidity79%
Visibility6.2 mi
Dew point74°
Tue, 1181° / 67°0.19
Morning73°feels 74°
Afternoon77°feels 78°
Evening75°feels 77°
Overnight67°feels 68°
81 °
Riley, Tuesday, 11 August
Rain. High 81°, low 67°.
Pressure29.80 inHg
Wind6.4 mph SE
Humidity96%
Visibility6.2 mi
Dew point72°
Wed, 1281° / 68°0.02
Morning72°feels 73°
Afternoon82°feels 86°
Evening70°feels 71°
Overnight69°feels 70°
81 °
Riley, Wednesday, 12 August
Light rain. High 81°, low 68°.
Pressure29.85 inHg
Wind6.8 mph NW
Humidity76%
Visibility6.2 mi
Dew point72°
Thu, 1373° / 61°0
Morning65°feels 65°
Afternoon72°feels 72°
Evening65°feels 65°
Overnight62°feels 62°
73 °
Riley, Thursday, 13 August
Overcast. High 73°, low 61°.
Pressure30.03 inHg
Wind9.5 mph E
Humidity65%
Visibility—
Dew point59°
Fri, 1473° / 57°0
Morning61°feels 61°
Afternoon72°feels 71°
Evening64°feels 64°
Overnight59°feels 59°
73 °
Riley, Friday, 14 August
Overcast. High 73°, low 57°.
Pressure30.15 inHg
Wind10.7 mph E
Humidity58%
Visibility—
Dew point55°
Sat, 1574° / 59°0
Morning63°feels 63°
Afternoon72°feels 72°
Evening69°feels 70°
Overnight66°feels 66°
74 °
Riley, Saturday, 15 August
Overcast. High 74°, low 59°.
Pressure30.24 inHg
Wind8.8 mph E
Humidity62%
Visibility—
Dew point57°
Sun, 1673° / 63°0.01
Morning65°feels 65°
Afternoon70°feels 71°
Evening71°feels 72°
Overnight68°feels 68°
73 °
Riley, Sunday, 16 August
Light rain. High 73°, low 63°.
Pressure30.09 inHg
Wind6.4 mph SE
Humidity80%
Visibility—
Dew point62°
Mon, 1781° / 64°0
Morning69°feels 69°
Afternoon78°feels 78°
Evening70°feels 71°
Overnight64°feels 65°
81 °
Riley, Monday, 17 August
Partly cloudy. High 81°, low 64°.
Pressure30.06 inHg
Wind10.6 mph E
Humidity66%
Visibility—
Dew point65°
Tue, 1875° / 60°0
Morning65°feels 65°
Afternoon73°feels 74°
Evening74°feels 75°
Overnight68°feels 69°
75 °
Riley, Tuesday, 18 August
Overcast. High 75°, low 60°.
Pressure30.03 inHg
Wind6.8 mph E
Humidity81%
Visibility—
Dew point65°
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 Riley, 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.