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Crystal Lake, IA

55°F
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Crystal Lake

Iowa

55°
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Crystal Lake, IA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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5 AM

54°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 8%
Chevron down
Partly cloudy

WindNNW 6 mph

Air QualityFair

Wind Gusts6 mph

Humidity100%

Indoor Humidity60% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover40%

Visibility10 mi

Cloud Ceiling30000 ft

6 AM

53°
RealFeel® 52°
Chilly
RealFeel Guide
Chilly
40° to 52°
Jacket or sweater is recommended.
LEARN MORE
rain drop 8%
Chevron down
Mostly sunny

RealFeel Shade™52°

WindNNW 6 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts6 mph

Humidity100%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

7 AM

56°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 6%
Chevron down
Mostly sunny

RealFeel Shade™54°

WindNNW 6 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts6 mph

Humidity89%

Indoor Humidity58% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

8 AM

60°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Partly sunny

RealFeel Shade™59°

WindNNE 6 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts7 mph

Humidity89%

Indoor Humidity68% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

9 AM

66°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Partly sunny

RealFeel Shade™63°

WindNNE 7 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts8 mph

Humidity73%

Indoor Humidity67% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover35%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

70°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Mostly sunny

RealFeel Shade™68°

WindNNE 7 mph

Air QualityFair

Max UV Index4.9 (Moderate)

Wind Gusts8 mph

Humidity62%

Indoor Humidity62% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover26%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

73°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Partly sunny

RealFeel Shade™70°

WindNE 7 mph

Air QualityPoor

Max UV Index7.3 (High)

Wind Gusts8 mph

Humidity54%

Indoor Humidity54% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover31%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

74°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 2%
Chevron down
Partly sunny

RealFeel Shade™72°

WindNE 6 mph

Air QualityPoor

Max UV Index9.4 (Very High)

Wind Gusts7 mph

Humidity49%

Indoor Humidity49% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

75°
RealFeel® 85°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 2%
Chevron down
Partly sunny

RealFeel Shade™73°

WindENE 6 mph

Air QualityPoor

Max UV Index10.3 (Very High)

Wind Gusts7 mph

Humidity45%

Indoor Humidity45% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

76°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 1%
Chevron down
Partly sunny

RealFeel Shade™74°

WindENE 6 mph

Air QualityPoor

Max UV Index9.4 (Very High)

Wind Gusts7 mph

Humidity44%

Indoor Humidity44% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

77°
RealFeel® 86°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 1%
Chevron down
Partly sunny

RealFeel Shade™75°

WindE 6 mph

Air QualityPoor

Max UV Index7.3 (High)

Wind Gusts7 mph

Humidity42%

Indoor Humidity42% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

76°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 1%
Chevron down
Partly sunny

RealFeel Shade™74°

WindE 5 mph

Air QualityPoor

Max UV Index4.9 (Moderate)

Wind Gusts6 mph

Humidity45%

Indoor Humidity45% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

76°
RealFeel® 80°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 1%
Chevron down
Partly sunny

RealFeel Shade™74°

WindE 5 mph

Air QualityPoor

Max UV Index3.5 (Moderate)

Wind Gusts6 mph

Humidity45%

Indoor Humidity45% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

76°
RealFeel® 78°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 1%
Chevron down
Partly sunny

RealFeel Shade™74°

WindNNE 4 mph

Air QualityPoor

Max UV Index2.2 (Low)

Wind Gusts5 mph

Humidity46%

Indoor Humidity46% (Ideal Humidity)

Dew Point53° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

75°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 1%
Chevron down
Partly sunny

RealFeel Shade™73°

WindNW 4 mph

Air QualityPoor

Max UV Index1.3 (Low)

Wind Gusts5 mph

Humidity48%

Indoor Humidity48% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

73°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

RealFeel Shade™72°

WindWNW 2 mph

Air QualityPoor

Max UV Index0.3 (Low)

Wind Gusts5 mph

Humidity53%

Indoor Humidity53% (Ideal Humidity)

Dew Point54° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling12100 ft

9 PM

71°
RealFeel® 70°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

WindWNW 2 mph

Air QualityPoor

Wind Gusts5 mph

Humidity58%

Indoor Humidity58% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling9600 ft

10 PM

70°
RealFeel® 69°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

WindS 1 mph

Air QualityPoor

Wind Gusts5 mph

Humidity60%

Indoor Humidity60% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling7100 ft

11 PM

69°
RealFeel® 68°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 2%
Chevron down
Intermittent clouds

WindESE 4 mph

Air QualityFair

Wind Gusts5 mph

Humidity63%

Indoor Humidity63% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling7100 ft

Hourly Weather Forecast for Crystal Lake

AccuWeather's hourly forecast for Crystal Lake provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 54° with a RealFeel® of 52°, partly cloudy with a 8% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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  • Austin, MN
  • Mason City, IA
  • Rochester, MN
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