Current Weather
1:35 PM
85°F
Partly sunny
RealFeel® 103°
Very Hot
RealFeel Shade™ 92°
Hot
RealFeel®
103°
RealFeel Shade™
92°
Heat Index
93°
Max UV Index
9.4 (Very High)
Wind
W 3 mph
Wind Gusts
6 mph
Humidity
69%
Indoor Humidity
69% (Extremely Humid)
Dew Point
74° F
Pressure
↔ 30.00 in
Cloud Cover
38%
Visibility
10 mi
Cloud Ceiling
40000 ft
Day
7/4
85°Hi
RealFeel®
103°
Hot
RealFeel Shade™
92°
Hot
Turning cloudy and humid; a heavy thunderstorm this afternoon; storms can bring flooding downpours and localized damaging wind gusts
Max UV Index10.0 (Very High)
AccuLumen Brightness Index™6 (Medium)
WindNNW 6 mph
Wind Gusts14 mph
Probability of Precipitation55%
Probability of Thunderstorms50%
Precipitation0.15 in
Rain0.15 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover56%
Night
7/4
67°Lo
RealFeel®
68°
Pleasant
Mostly cloudy with a couple of drenching thunderstorms; fog late and humid; thunderstorms can bring flooding downpours, hail and damaging wind gusts
WindENE 5 mph
Wind Gusts6 mph
Probability of Precipitation91%
Probability of Thunderstorms55%
Precipitation0.30 in
Rain0.30 in
Hours of Precipitation2.5
Hours of Rain2.5
Cloud Cover89%
Sun & Moon
15 hrs 07 mins
Rise
5:46 AM
Set
8:53 PM
Waning Gibbous
Rise
11:36 PM
Set
11:20 AM
Temperature History
7/4High
Low
Forecast
85°
67°
Average
86°
64°
Last Year
91°
73°
Current Weather Conditions in Johnston
Johnston, Iowa is currently Partly sunny with a temperature of 85°. The current RealFeel® Temperature is 103° (Very Hot) based on observed conditions including 69% humidity, 38% cloud cover, a UV index of 9, and winds of 3 mph. In shade, the RealFeel Shade™ is 92°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Johnston, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.
