10-day forecast for Castle Fin, IL: 62° to 94°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
94°
Best day: Monday, August 10
68° · 0.34 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1094° / 76°0.03
Morning77°feels 79°
Afternoon93°feels 106°
Evening87°feels 100°
Overnight78°feels 79°
94 °
Castle Fin, Monday, 10 August
Light rain. High 94°, low 76°.
Pressure29.97 inHg
Wind13.4 mph SW
Humidity65%
Visibility6.2 mi
Dew point74°
Tue, 1191° / 72°0
Morning75°feels 76°
Afternoon89°feels 100°
Evening82°feels 88°
Overnight72°feels 74°
91 °
Castle Fin, Tuesday, 11 August
Light rain. High 91°, low 72°.
Pressure29.91 inHg
Wind13.2 mph SW
Humidity69%
Visibility6.2 mi
Dew point74°
Wed, 1284° / 68°0.2
Morning75°feels 76°
Afternoon82°feels 89°
Evening69°feels 70°
Overnight78°feels 79°
84 °
Castle Fin, Wednesday, 12 August
Rain. High 84°, low 68°.
Pressure29.83 inHg
Wind6.5 mph W
Humidity74%
Visibility6.2 mi
Dew point74°
Thu, 1383° / 67°0.06
Morning72°feels 73°
Afternoon81°feels 83°
Evening74°feels 75°
Overnight67°feels 68°
83 °
Castle Fin, Thursday, 13 August
Light rain. High 83°, low 67°.
Pressure29.97 inHg
Wind14.3 mph NE
Humidity63%
Visibility—
Dew point66°
Fri, 1468° / 62°0.34
Morning64°feels 64°
Afternoon65°feels 66°
Evening67°feels 68°
Overnight65°feels 65°
68 °
Castle Fin, Friday, 14 August
Rain. High 68°, low 62°.
Pressure30.12 inHg
Wind14.2 mph NE
Humidity97%
Visibility—
Dew point64°
Sat, 1575° / 62°0.11
Morning65°feels 66°
Afternoon71°feels 71°
Evening71°feels 72°
Overnight66°feels 66°
75 °
Castle Fin, Saturday, 15 August
Light rain. High 75°, low 62°.
Pressure30.21 inHg
Wind12 mph E
Humidity81%
Visibility—
Dew point63°
Sun, 1681° / 63°0.13
Morning67°feels 67°
Afternoon76°feels 77°
Evening77°feels 78°
Overnight72°feels 73°
81 °
Castle Fin, Sunday, 16 August
Light rain. High 81°, low 63°.
Pressure30.06 inHg
Wind7.2 mph E
Humidity76%
Visibility—
Dew point66°
Mon, 1781° / 68°0
Morning72°feels 73°
Afternoon80°feels 82°
Evening74°feels 75°
Overnight69°feels 70°
81 °
Castle Fin, Monday, 17 August
Partly cloudy. High 81°, low 68°.
Pressure30.06 inHg
Wind8.5 mph NE
Humidity66%
Visibility—
Dew point67°
Tue, 1883° / 64°0
Morning69°feels 70°
Afternoon80°feels 83°
Evening76°feels 78°
Overnight69°feels 70°
83 °
Castle Fin, Tuesday, 18 August
Mostly clear. High 83°, low 64°.
Pressure30.03 inHg
Wind7.2 mph E
Humidity62%
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 Castle Fin, 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.