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As of 11:05 CDT

Weather in Crystal Lake, IL

79°Current weather

Crystal Lake, Sunday, 9 August, 11:05

Partly cloudy. Feels like 80°. High 85°, low 62°.

Pressure29.97 inHg
Wind5 mph S
Humidity80%
Visibility6.2 mi
Dew point72°

10-day forecast for Crystal Lake, IL: 58° to 88°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.

83°
Best day: Wednesday, August 12
82° · 0.91 in
Worst day: Tuesday, August 11

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1088° / 71°0.52Heavy rain
MorningPartly cloudy75°feels 76°
AfternoonOvercast87°feels 96°
EveningLight rain76°feels 78°
OvernightLight rain75°feels 77°
88 °Heavy rain

Crystal Lake, Monday, 10 August

Heavy rain. High 88°, low 71°.

Pressure29.91 inHg
Wind4.1 mph E
Humidity72%
Visibility6.2 mi
Dew point73°
Tue, 1182° / 65°0.91Heavy rain
MorningPartly cloudy69°feels 70°
AfternoonHeavy rain70°feels 71°
EveningRain68°feels 69°
OvernightClear67°feels 68°
82 °Heavy rain

Crystal Lake, Tuesday, 11 August

Heavy rain. High 82°, low 65°.

Pressure29.80 inHg
Wind10 mph S
Humidity74%
Visibility6.2 mi
Dew point72°
Wed, 1283° / 62°0Clear
MorningClear67°feels 68°
AfternoonClear82°feels 85°
EveningMostly clear71°feels 72°
OvernightPartly cloudy65°feels 66°
83 °Clear

Crystal Lake, Wednesday, 12 August

Clear. High 83°, low 62°.

Pressure29.85 inHg
Wind3.8 mph N
Humidity65%
Visibility6.2 mi
Dew point67°
Thu, 1372° / 61°0.07Light rain
MorningOvercast68°feels 69°
AfternoonLight rain70°feels 70°
EveningLight rain63°feels 64°
OvernightClear65°feels 65°
72 °Light rain

Crystal Lake, Thursday, 13 August

Light rain. High 72°, low 61°.

Pressure29.97 inHg
Wind8.1 mph E
Humidity78%
Visibility—
Dew point63°
Fri, 1472° / 58°0Overcast
MorningOvercast63°feels 62°
AfternoonOvercast71°feels 70°
EveningOvercast64°feels 64°
OvernightOvercast59°feels 58°
72 °Overcast

Crystal Lake, Friday, 14 August

Overcast. High 72°, low 58°.

Pressure30.15 inHg
Wind14.8 mph E
Humidity57%
Visibility—
Dew point54°
Sat, 1575° / 60°0.06Light rain
MorningLight rain67°feels 67°
AfternoonLight rain72°feels 71°
EveningLight rain66°feels 67°
OvernightLight rain64°feels 65°
75 °Light rain

Crystal Lake, Saturday, 15 August

Light rain. High 75°, low 60°.

Pressure30.21 inHg
Wind12.5 mph SE
Humidity57%
Visibility—
Dew point56°
Sun, 1673° / 64°0.21Light rain
MorningLight rain67°feels 67°
AfternoonLight rain71°feels 72°
EveningLight rain68°feels 68°
OvernightLight rain65°feels 65°
73 °Light rain

Crystal Lake, Sunday, 16 August

Light rain. High 73°, low 64°.

Pressure30.00 inHg
Wind12.2 mph NW
Humidity84%
Visibility—
Dew point65°
Mon, 1776° / 60°0Overcast
MorningOvercast64°feels 64°
AfternoonOvercast73°feels 73°
EveningOvercast70°feels 70°
OvernightOvercast62°feels 62°
76 °Overcast

Crystal Lake, Monday, 17 August

Overcast. High 76°, low 60°.

Pressure30.12 inHg
Wind7.8 mph N
Humidity61%
Visibility—
Dew point57°
Tue, 1876° / 58°0Overcast
MorningOvercast61°feels 61°
AfternoonOvercast66°feels 67°
EveningOvercast72°feels 73°
OvernightOvercast65°feels 66°
76 °Overcast

Crystal Lake, Tuesday, 18 August

Overcast. High 76°, low 58°.

Pressure29.91 inHg
Wind10 mph S
Humidity84%
Visibility—
Dew point59°

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 Crystal Lake, 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.