Hourly Weather Forecast - Johnston, IA

12 AM
20°F
10%
5mph
NNW
Clear
Humidity
60%
Feels like
13°F
Dew Point
9°F
1 AM
20°F
10%
4mph
NNW
Clear
Humidity
61%
Feels like
13°F
Dew Point
9°F
2 AM
19°F
10%
4mph
NW
Clear
Humidity
64%
Feels like
13°F
Dew Point
9°F
3 AM
18°F
10%
3mph
NW
Clear
Humidity
66%
Feels like
13°F
Dew Point
9°F
4 AM
17°F
10%
3mph
NW
Mostly Clear
Humidity
69%
Feels like
17°F
Dew Point
9°F
5 AM
17°F
10%
3mph
WNW
Partly Cloudy
Humidity
69%
Feels like
17°F
Dew Point
8°F
6 AM
17°F
10%
3mph
W
Mostly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
8°F
7 AM
17°F
10%
3mph
SW
Mostly Cloudy
Humidity
66%
Feels like
17°F
Dew Point
8°F
7:39 AM
8 AM
19°F
0%
4mph
SSW
Mostly Cloudy
Humidity
64%
Feels like
14°F
Dew Point
9°F
9 AM
22°F
0%
5mph
SSW
Mostly Cloudy
Humidity
60%
Feels like
16°F
Dew Point
10°F
10 AM
25°F
0%
6mph
SSW
Mostly Cloudy
Humidity
54%
Feels like
18°F
Dew Point
11°F
11 AM
29°F
10%
8mph
SSW
Cloudy
Humidity
48%
Feels like
21°F
Dew Point
12°F
12 PM
33°F
0%
9mph
SSW
Cloudy
Humidity
44%
Feels like
25°F
Dew Point
13°F
1 PM
36°F
0%
10mph
SSW
Mostly Cloudy
Humidity
42%
Feels like
29°F
Dew Point
15°F
2 PM
38°F
10%
11mph
SSW
Mostly Cloudy
Humidity
43%
Feels like
32°F
Dew Point
18°F
3 PM
39°F
20%
11mph
SSW
Mostly Cloudy
Humidity
44%
Feels like
32°F
Dew Point
19°F
4 PM
38°F
30%
10mph
SSW
30% Chance of Flurries
Humidity
47%
Feels like
32°F
Dew Point
20°F
5 PM
37°F
40%
9mph
SSW
40% Chance of Flurries
Humidity
53%
Feels like
30°F
Dew Point
21°F
5:09 PM
6 PM
35°F
40%
9mph
SW
40% Chance Frozen Mix
Humidity
61%
Feels like
28°F
Dew Point
23°F
7 PM
34°F
40%
9mph
SW
40% Chance Frozen Mix
Humidity
67%
Feels like
27°F
Dew Point
25°F
8 PM
34°F
30%
8mph
WSW
30% Chance Rain Showers
Humidity
72%
Feels like
27°F
Dew Point
26°F
9 PM
35°F
30%
9mph
WSW
30% Chance Rain Showers
Humidity
74%
Feels like
28°F
Dew Point
27°F
10 PM
35°F
30%
10mph
W
30% Chance Rain Showers
Humidity
73%
Feels like
28°F
Dew Point
28°F
11 PM
36°F
10%
11mph
WNW
Partly Cloudy
Humidity
72%
Feels like
28°F
Dew Point
28°F

Tuesday's Weather Outlook

Today's Weather Outlook

Rain and snow showers will sweep through the Great Lakes as the Western U.S. begins a pattern of quiet and dry weather.

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

(Image provided by Pixabay.com)

Before a High Wind Event

Windchill chart

Dangers of Wind Chills

A snow-covered trail in Sparkill, N.Y. (H. Martinez, WeatherBug user)

Top Winter Hiking Destinations

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