10-day forecast for River, IL: 52° to 86°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
84°
Best day: Saturday, August 8
84° · 0.84 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0984° / 66°0.84
Morning71°feels 72°
Afternoon79°feels 79°
Evening79°feels 79°
Overnight68°feels 69°
84 °
River, Sunday, 9 August
Heavy rain. High 84°, low 66°.
Pressure29.94 inHg
Wind14.1 mph SW
Humidity73%
Visibility6.2 mi
Dew point75°
Mon, 1085° / 73°0.05
Morning77°feels 78°
Afternoon85°feels 94°
Evening80°feels 86°
Overnight76°feels 77°
85 °
River, Monday, 10 August
Light rain. High 85°, low 73°.
Pressure29.91 inHg
Wind10.7 mph S
Humidity76%
Visibility6.2 mi
Dew point74°
Tue, 1186° / 70°0.32
Morning73°feels 75°
Afternoon86°feels 96°
Evening77°feels 79°
Overnight75°feels 77°
86 °
River, Tuesday, 11 August
Rain. High 86°, low 70°.
Pressure29.83 inHg
Wind13.8 mph SW
Humidity77%
Visibility6.2 mi
Dew point74°
Wed, 1277° / 69°0.03
Morning72°feels 74°
Afternoon73°feels 74°
Evening74°feels 76°
Overnight72°feels 73°
77 °
River, Wednesday, 12 August
Light rain. High 77°, low 69°.
Pressure29.88 inHg
Wind8.4 mph N
Humidity76%
Visibility6.2 mi
Dew point69°
Thu, 1371° / 65°0
Morning67°feels 68°
Afternoon70°feels 70°
Evening66°feels 66°
Overnight65°feels 65°
71 °
River, Thursday, 13 August
Light rain. High 71°, low 65°.
Pressure29.91 inHg
Wind15.9 mph E
Humidity74%
Visibility—
Dew point61°
Fri, 1472° / 55°0
Morning60°feels 59°
Afternoon71°feels 71°
Evening63°feels 63°
Overnight56°feels 55°
72 °
River, Friday, 14 August
Clear. High 72°, low 55°.
Pressure30.18 inHg
Wind11.1 mph NE
Humidity59%
Visibility—
Dew point55°
Sat, 1574° / 52°0
Morning60°feels 59°
Afternoon72°feels 72°
Evening67°feels 67°
Overnight59°feels 59°
74 °
River, Saturday, 15 August
Overcast. High 74°, low 52°.
Pressure30.33 inHg
Wind7.6 mph SE
Humidity58%
Visibility—
Dew point55°
Sun, 1676° / 56°0
Morning62°feels 62°
Afternoon74°feels 75°
Evening70°feels 71°
Overnight64°feels 65°
76 °
River, Sunday, 16 August
Mostly clear. High 76°, low 56°.
Pressure30.21 inHg
Wind10.5 mph S
Humidity62%
Visibility—
Dew point59°
Mon, 1777° / 67°0.06
Morning68°feels 68°
Afternoon69°feels 70°
Evening72°feels 73°
Overnight69°feels 70°
77 °
River, Monday, 17 August
Light rain. High 77°, low 67°.
Pressure30.00 inHg
Wind7.8 mph SE
Humidity93%
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 River, 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.