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Severe thunderstorms to rumble across the central, eastern US this week. Click for the forecast. Chevron right

Johnston, IA

62°F
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Johnston

Iowa

62°
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Johnston, IA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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6 PM

68°
RealFeel® 65°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
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Intermittent clouds
alerts

Tornado Watch

3:35 PM Wednesday - 9:00 PM Wednesday

RealFeel Shade™63°

WindW 21 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts28 mph

Humidity71%

Indoor Humidity71% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover53%

Visibility10 mi

Cloud Ceiling20900 ft

7 PM

67°
RealFeel® 63°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Intermittent clouds
alerts

Tornado Watch

3:35 PM Wednesday - 9:00 PM Wednesday

RealFeel Shade™63°

WindSSW 23 mph

Air QualityFair

Max UV Index0.4 (Low)

Wind Gusts28 mph

Humidity76%

Indoor Humidity73% (Slightly Humid)

Dew Point59° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover72%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

66°
RealFeel® 60°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 54%
Chevron down
Mostly cloudy w/ t-storms
alerts

Tornado Watch

3:35 PM Wednesday - 9:00 PM Wednesday

WindNNW 8 mph

Air QualityFair

Wind Gusts9 mph

Humidity74%

Indoor Humidity70% (Slightly Humid)

Dew Point58° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover69%

Rain0.04 in

Visibility6 mi

Cloud Ceiling4000 ft

9 PM

64°
RealFeel® 61°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 47%
Chevron down
Mostly cloudy w/ t-storms

WindWNW 8 mph

Air QualityFair

Wind Gusts10 mph

Humidity77%

Indoor Humidity68% (Slightly Humid)

Dew Point57° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover70%

Visibility10 mi

Cloud Ceiling4000 ft

10 PM

62°
RealFeel® 59°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 46%
Chevron down
Intermittent clouds

WindW 9 mph

Air QualityFair

Wind Gusts10 mph

Humidity80%

Indoor Humidity66% (Slightly Humid)

Dew Point56° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover72%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

59°
RealFeel® 56°
Cool
RealFeel Guide
Cool
53° to 62°
Light jacket or sweater may be appropriate.
LEARN MORE
rain drop 34%
Chevron down
Mostly cloudy

WindW 9 mph

Air QualityFair

Wind Gusts12 mph

Humidity85%

Indoor Humidity63% (Ideal Humidity)

Dew Point55° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover78%

Visibility10 mi

Cloud Ceiling27900 ft

Hourly Weather Forecast for Johnston

AccuWeather's hourly forecast for Johnston provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 68° with a RealFeel® of 65°, intermittent clouds with a 49% 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 Johnston:

  • Ames, IA
  • Des Moines, IA
  • West Des Moines, IA
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