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Heat dome to bring 90 to 100-degree temps. See when the heat will peak.

Marshalltown, IA

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Marshalltown, IA Weather

Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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4 PM

83°

RealFeel® 90°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

20%

Intermittent clouds

Extreme Heat Warning

1:00 PM Sunday - 9:00 PM Tuesday

RealFeel Shade™88°

Heat Index91°

WindS 16 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts38 mph

Humidity76%

Indoor Humidity76% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling3700 ft

5 PM

85°

RealFeel® 93°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

20%

Intermittent clouds

Extreme Heat Warning

1:00 PM Sunday - 9:00 PM Tuesday

RealFeel Shade™91°

Heat Index95°

WindS 15 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts38 mph

Humidity73%

Indoor Humidity73% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover68%

Visibility10 mi

Cloud Ceiling12400 ft

6 PM

87°

RealFeel® 95°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

20%

Intermittent clouds

Extreme Heat Warning

1:00 PM Sunday - 9:00 PM Tuesday

RealFeel Shade™93°

Heat Index98°

WindS 14 mph

Air QualityFair

Max UV Index1.8 (Low)

Wind Gusts35 mph

Humidity70%

Indoor Humidity70% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover64%

Visibility10 mi

Cloud Ceiling21200 ft

7 PM

89°

RealFeel® 97°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

13%

Intermittent clouds

Extreme Heat Warning

1:00 PM Sunday - 9:00 PM Tuesday

RealFeel Shade™95°

Heat Index100°

WindS 13 mph

Air QualityFair

Max UV Index1.2 (Low)

Wind Gusts30 mph

Humidity67%

Indoor Humidity67% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

90°

RealFeel® 97°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

0%

Mostly sunny

Extreme Heat Warning

1:00 PM Sunday - 9:00 PM Tuesday

RealFeel Shade™97°

Heat Index102°

WindS 15 mph

Air QualityPoor

Max UV Index0.4 (Low)

Wind Gusts29 mph

Humidity64%

Indoor Humidity64% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™3 (Dull)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

89°

RealFeel® 96°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

0%

Mostly clear

Extreme Heat Warning

1:00 PM Sunday - 9:00 PM Tuesday

Heat Index101°

WindS 13 mph

Air QualityPoor

Wind Gusts23 mph

Humidity67%

Indoor Humidity67% (Extremely Humid)

Dew Point77° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

87°

RealFeel® 95°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

0%

Mostly clear

Extreme Heat Warning

1:00 PM Sunday - 9:00 PM Tuesday

Heat Index98°

WindS 13 mph

Air QualityPoor

Wind Gusts17 mph

Humidity70%

Indoor Humidity70% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

86°

RealFeel® 93°

Hot

RealFeel Guide

Hot

90° to 100°

Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.

0%

Mostly clear

Extreme Heat Warning

1:00 PM Sunday - 9:00 PM Tuesday

Heat Index96°

WindS 12 mph

Air QualityPoor

Wind Gusts16 mph

Humidity73%

Indoor Humidity73% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover25%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Marshalltown

AccuWeather's hourly forecast for Marshalltown provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 83° with a RealFeel® of 90°, intermittent clouds 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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