Current Weather
7:10 AM
63°F
Cloudy
RealFeel® 62°
Cool
RealFeel Shade™ 61°
Cool
RealFeel®
62°
RealFeel Shade™
61°
Max UV Index
0.5 (Low)
Wind
SSW 5 mph
Wind Gusts
11 mph
Humidity
95%
Indoor Humidity
79% (Slightly Humid)
Dew Point
61° F
Pressure
↑ 29.69 in
Cloud Cover
99%
Visibility
10 mi
Cloud Ceiling
4700 ft
Day
5/18
80°Hi
RealFeel®
80°
Pleasant
RealFeel Shade™
79°
Pleasant
Mostly cloudy and humid, breezy in the p.m.; a few p.m. t-storms, some severe; there is a significant risk for damaging wind gusts, tornadoes and large hail
Max UV Index3.0 (Moderate)
AccuLumen Brightness Index™2 (Dark)
WindS 14 mph
Wind Gusts29 mph
Probability of Precipitation70%
Probability of Thunderstorms70%
Precipitation0.20 in
Rain0.20 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover92%
Night
5/18
50°Lo
RealFeel®
41°
Chilly
A severe evening thunderstorm; overcast and breezy; storms can bring flooding downpours, hail, damaging wind gusts, and tornadoes
WindSW 15 mph
Wind Gusts31 mph
Probability of Precipitation94%
Probability of Thunderstorms93%
Precipitation0.71 in
Rain0.71 in
Hours of Precipitation1
Hours of Rain1
Cloud Cover98%
Sun & Moon
14 hrs 37 mins
Rise
5:53 AM
Set
8:30 PM
Waxing Crescent
Rise
6:59 AM
Set
11:26 PM
Temperature History
5/18High
Low
Forecast
80°
50°
Average
74°
50°
Last Year
73°
39°
Current Weather Conditions in Johnston
Johnston, Iowa is currently Cloudy with a temperature of 63°. The current RealFeel® Temperature is 62° (Cool) based on observed conditions including 95% humidity, 99% cloud cover, a UV index of 0, and winds of 5 mph. In shade, the RealFeel Shade™ is 61°. AccuWeather's MinuteCast® provides minute-by-minute precipitation forecasts for Johnston, powered by forecasting systems and proprietary technology developed by AccuWeather meteorologists since 1962.
