10-day forecast for Algonquin, IL: 55° to 84°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
82°
Best day: Saturday, August 8
84° · 1.31 in
Worst day: Sunday, August 9
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0984° / 63°1.31
Morning71°feels 72°
Afternoon76°feels 77°
Evening81°feels 88°
Overnight66°feels 67°
84 °
Algonquin, Sunday, 9 August
Heavy rain. High 84°, low 63°.
Pressure29.91 inHg
Wind7.4 mph SE
Humidity94%
Visibility6.2 mi
Dew point62°
Mon, 1083° / 70°0.13
Morning70°feels 71°
Afternoon83°feels 89°
Evening77°feels 78°
Overnight75°feels 77°
83 °
Algonquin, Monday, 10 August
Rain. High 83°, low 70°.
Pressure29.88 inHg
Wind7.9 mph SE
Humidity84%
Visibility6.2 mi
Dew point72°
Tue, 1180° / 68°0.54
Morning73°feels 74°
Afternoon72°feels 74°
Evening70°feels 72°
Overnight71°feels 72°
80 °
Algonquin, Tuesday, 11 August
Heavy rain. High 80°, low 68°.
Pressure29.83 inHg
Wind8.2 mph NW
Humidity91%
Visibility6.2 mi
Dew point73°
Wed, 1282° / 64°0
Morning68°feels 69°
Afternoon81°feels 84°
Evening76°feels 78°
Overnight66°feels 67°
82 °
Algonquin, Wednesday, 12 August
Light rain. High 82°, low 64°.
Pressure29.88 inHg
Wind3.1 mph NW
Humidity76%
Visibility6.2 mi
Dew point67°
Thu, 1369° / 57°0.06
Morning65°feels 65°
Afternoon68°feels 68°
Evening64°feels 64°
Overnight59°feels 58°
69 °
Algonquin, Thursday, 13 August
Light rain. High 69°, low 57°.
Pressure29.97 inHg
Wind12.1 mph NE
Humidity79%
Visibility—
Dew point61°
Fri, 1473° / 55°0
Morning61°feels 60°
Afternoon71°feels 70°
Evening64°feels 64°
Overnight58°feels 57°
73 °
Algonquin, Friday, 14 August
Clear. High 73°, low 55°.
Pressure30.18 inHg
Wind7 mph NE
Humidity57%
Visibility—
Dew point54°
Sat, 1573° / 55°0
Morning61°feels 60°
Afternoon71°feels 71°
Evening67°feels 67°
Overnight59°feels 59°
73 °
Algonquin, Saturday, 15 August
Overcast. High 73°, low 55°.
Pressure30.33 inHg
Wind6.7 mph SW
Humidity60%
Visibility—
Dew point55°
Sun, 1675° / 56°0
Morning62°feels 61°
Afternoon73°feels 73°
Evening70°feels 71°
Overnight63°feels 64°
75 °
Algonquin, Sunday, 16 August
Partly cloudy. High 75°, low 56°.
Pressure30.18 inHg
Wind12 mph S
Humidity67%
Visibility—
Dew point60°
Mon, 1778° / 64°0.01
Morning67°feels 67°
Afternoon72°feels 73°
Evening75°feels 76°
Overnight71°feels 72°
78 °
Algonquin, Monday, 17 August
Light rain. High 78°, low 64°.
Pressure30.00 inHg
Wind8.3 mph S
Humidity87%
Visibility—
Dew point66°
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 Algonquin, 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.