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Northeast weather to feel more like Thanksgiving than Memorial Day. See the temp forecast. Chevron right

Castalia, IA

54°F
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Castalia

Iowa

54°
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Castalia, IA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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9 AM

52°
RealFeel® 53°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Mostly sunny

RealFeel Shade™48°

WindESE 8 mph

Air QualityExcellent

Max UV Index3.2 (Moderate)

Wind Gusts17 mph

Humidity72%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover17%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

55°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Partly sunny

RealFeel Shade™50°

WindESE 10 mph

Air QualityExcellent

Max UV Index4.6 (Moderate)

Wind Gusts18 mph

Humidity63%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover35%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

58°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 20%
Chevron down
Intermittent clouds

RealFeel Shade™53°

WindESE 12 mph

Air QualityExcellent

Max UV Index6.7 (High)

Wind Gusts21 mph

Humidity57%

Indoor Humidity40% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover52%

Visibility10 mi

Cloud Ceiling24900 ft

12 PM

61°
RealFeel® 64°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 20%
Chevron down
Intermittent clouds

RealFeel Shade™56°

WindESE 12 mph

Air QualityExcellent

Max UV Index6.1 (High)

Wind Gusts22 mph

Humidity52%

Indoor Humidity41% (Ideal Humidity)

Dew Point43° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling19800 ft

1 PM

63°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 16%
Chevron down
Intermittent clouds

RealFeel Shade™59°

WindESE 13 mph

Air QualityExcellent

Max UV Index5.9 (High)

Wind Gusts24 mph

Humidity49%

Indoor Humidity42% (Ideal Humidity)

Dew Point44° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling14700 ft

2 PM

64°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™60°

WindESE 13 mph

Air QualityFair

Max UV Index5.0 (Moderate)

Wind Gusts24 mph

Humidity50%

Indoor Humidity43% (Ideal Humidity)

Dew Point45° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling11400 ft

3 PM

65°
RealFeel® 66°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™61°

WindESE 12 mph

Air QualityFair

Max UV Index3.5 (Moderate)

Wind Gusts24 mph

Humidity50%

Indoor Humidity44% (Ideal Humidity)

Dew Point46° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling8200 ft

4 PM

63°
RealFeel® 62°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™60°

WindESE 12 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts23 mph

Humidity54%

Indoor Humidity46% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling4900 ft

5 PM

63°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™59°

WindESE 12 mph

Air QualityFair

Max UV Index1.6 (Low)

Wind Gusts23 mph

Humidity56%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling5500 ft

6 PM

62°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™59°

WindESE 10 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts22 mph

Humidity57%

Indoor Humidity47% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6000 ft

7 PM

61°
RealFeel® 58°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Intermittent clouds

RealFeel Shade™58°

WindESE 10 mph

Air QualityFair

Max UV Index0.6 (Low)

Wind Gusts21 mph

Humidity61%

Indoor Humidity48% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling6500 ft

8 PM

60°
RealFeel® 57°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

RealFeel Shade™57°

WindESE 10 mph

Air QualityExcellent

Max UV Index0.1 (Low)

Wind Gusts21 mph

Humidity63%

Indoor Humidity48% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling6700 ft

9 PM

60°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

WindESE 10 mph

Air QualityExcellent

Wind Gusts20 mph

Humidity64%

Indoor Humidity48% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling6900 ft

10 PM

59°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

WindESE 9 mph

Air QualityExcellent

Wind Gusts16 mph

Humidity65%

Indoor Humidity48% (Ideal Humidity)

Dew Point48° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling7100 ft

11 PM

59°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 7%
Chevron down
Cloudy

WindESE 9 mph

Air QualityFair

Wind Gusts15 mph

Humidity64%

Indoor Humidity46% (Ideal Humidity)

Dew Point47° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover95%

Visibility10 mi

Cloud Ceiling6300 ft

Hourly Weather Forecast for Castalia

AccuWeather's hourly forecast for Castalia provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 52° with a RealFeel® of 53°, mostly sunny with a 20% 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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Weather Near Castalia:

  • Cedar Rapids, IA
  • Iowa City, IA
  • Waterloo, IA
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