10-day forecast for Rock City, IL: 56° to 86°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
85°
Best day: Wednesday, August 12
85° · 0.57 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1086° / 71°0.24
Morning75°feels 77°
Afternoon86°feels 93°
Evening76°feels 78°
Overnight75°feels 76°
86 °
Rock City, Monday, 10 August
Rain. High 86°, low 71°.
Pressure29.91 inHg
Wind4.9 mph E
Humidity69%
Visibility6.2 mi
Dew point71°
Tue, 1179° / 65°0.08
Morning69°feels 70°
Afternoon74°feels 75°
Evening71°feels 73°
Overnight66°feels 67°
79 °
Rock City, Tuesday, 11 August
Rain. High 79°, low 65°.
Pressure29.83 inHg
Wind5.6 mph E
Humidity91%
Visibility6.2 mi
Dew point73°
Wed, 1285° / 64°0
Morning69°feels 70°
Afternoon83°feels 87°
Evening73°feels 73°
Overnight64°feels 65°
85 °
Rock City, Wednesday, 12 August
Mostly clear. High 85°, low 64°.
Pressure29.88 inHg
Wind2.8 mph N
Humidity68%
Visibility6.2 mi
Dew point69°
Thu, 1371° / 61°0.12
Morning67°feels 67°
Afternoon70°feels 71°
Evening65°feels 66°
Overnight64°feels 64°
71 °
Rock City, Thursday, 13 August
Light rain. High 71°, low 61°.
Pressure29.94 inHg
Wind7.9 mph E
Humidity84%
Visibility—
Dew point65°
Fri, 1474° / 56°0
Morning61°feels 61°
Afternoon73°feels 73°
Evening66°feels 66°
Overnight60°feels 59°
74 °
Rock City, Friday, 14 August
Overcast. High 74°, low 56°.
Pressure30.15 inHg
Wind13.8 mph E
Humidity56%
Visibility—
Dew point55°
Sat, 1572° / 59°0.06
Morning63°feels 63°
Afternoon67°feels 67°
Evening67°feels 67°
Overnight65°feels 65°
72 °
Rock City, Saturday, 15 August
Light rain. High 72°, low 59°.
Pressure30.18 inHg
Wind14.5 mph SE
Humidity69%
Visibility—
Dew point56°
Sun, 1674° / 64°0.13
Morning67°feels 68°
Afternoon72°feels 72°
Evening68°feels 69°
Overnight66°feels 66°
74 °
Rock City, Sunday, 16 August
Light rain. High 74°, low 64°.
Pressure30.03 inHg
Wind12 mph NW
Humidity75%
Visibility—
Dew point63°
Mon, 1778° / 58°0
Morning62°feels 62°
Afternoon74°feels 74°
Evening71°feels 71°
Overnight61°feels 61°
78 °
Rock City, Monday, 17 August
Overcast. High 78°, low 58°.
Pressure30.12 inHg
Wind6.7 mph SW
Humidity57%
Visibility—
Dew point56°
Tue, 1878° / 58°0
Morning63°feels 63°
Afternoon74°feels 74°
Evening74°feels 75°
Overnight67°feels 68°
78 °
Rock City, Tuesday, 18 August
Overcast. High 78°, low 58°.
Pressure29.85 inHg
Wind11.4 mph SW
Humidity72%
Visibility—
Dew point62°
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 Rock City, 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.