Current Weather
12:44 PM
85°F
Mostly sunny
RealFeel® 100°
Very Hot
RealFeel Shade™ 92°
Hot
RealFeel®
100°
RealFeel Shade™
92°
Heat Index
93°
Max UV Index
5.8 (High)
Wind
S 4 mph
Wind Gusts
7 mph
Humidity
68%
Indoor Humidity
68% (Extremely Humid)
Dew Point
74° F
Pressure
↓ 29.98 in
Cloud Cover
18%
Visibility
10 mi
Cloud Ceiling
20000 ft
Day
9/8
94°Hi
RealFeel®
102°
Very Hot
RealFeel Shade™
99°
Hot
Hot and humid with sunshine and a few clouds; a heavy thunderstorm late this afternoon; thunderstorms could bring damaging winds, flash flooding and hail
Max UV Index5.0 (Moderate)
AccuLumen Brightness Index™9 (Very Bright)
WindSW 10 mph
Wind Gusts18 mph
Probability of Precipitation91%
Probability of Thunderstorms82%
Precipitation1.06 in
Rain Amount1.06 in
Total Hours of Precipitation2
Total Hours of Rain2
Cloud Cover25%
Night
9/8
71°Lo
RealFeel®
74°
Pleasant
Partly cloudy, warm and humid with a couple of drenching thunderstorms; thunderstorms could bring damaging winds, flash flooding and hail
WindSSW 7 mph
Wind Gusts12 mph
Probability of Precipitation99%
Probability of Thunderstorms59%
Precipitation0.78 in
Rain Amount0.78 in
Total Hours of Precipitation4
Total Hours of Rain4
Cloud Cover70%
Sun & Moon
12 hrs 49 mins
Rise
6:48 AM
Set
7:37 PM
Waning Crescent
Rise
3:41 AM
Set
6:26 PM
Temperature History
9/8High
Low
Forecast
94°
71°
Average
80°
55°
Last Year
79°
48°
Current Weather Conditions in Johnston
Johnston, Iowa is currently Mostly sunny with a temperature of 85°. The current RealFeel® Temperature is 100° (Very Hot) based on observed conditions including 68% humidity, 18% cloud cover, a UV index of 6, and winds of 4 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.
