Hourly Weather Forecast - Johnston, IA

12 AM
26°F
0%
11mph
W
Partly Cloudy
Humidity
72%
Feels like
15°F
Dew Point
18°F
1 AM
24°F
0%
11mph
W
Mostly Cloudy
Humidity
78%
Feels like
14°F
Dew Point
19°F
2 AM
23°F
0%
10mph
W
Mostly Cloudy
Humidity
83%
Feels like
13°F
Dew Point
19°F
3 AM
22°F
0%
9mph
WNW
Mostly Cloudy
Humidity
87%
Feels like
12°F
Dew Point
19°F
4 AM
21°F
0%
9mph
WNW
Partly Cloudy
Humidity
88%
Feels like
11°F
Dew Point
18°F
5 AM
20°F
0%
9mph
WNW
Mostly Clear
Humidity
86%
Feels like
9°F
Dew Point
16°F
6 AM
20°F
0%
10mph
WNW
Clear
Humidity
84%
Feels like
9°F
Dew Point
15°F
7 AM
21°F
0%
10mph
WNW
Mostly Clear
Humidity
83%
Feels like
10°F
Dew Point
16°F
7:36 AM
8 AM
23°F
0%
10mph
WNW
Partly Cloudy
Humidity
81%
Feels like
13°F
Dew Point
19°F
9 AM
26°F
0%
11mph
WNW
Mostly Cloudy
Humidity
78%
Feels like
16°F
Dew Point
20°F
10 AM
28°F
0%
12mph
WNW
Partly Cloudy
Humidity
69%
Feels like
18°F
Dew Point
20°F
11 AM
30°F
0%
13mph
NW
Mostly Sunny
Humidity
62%
Feels like
20°F
Dew Point
19°F
12 PM
32°F
0%
13mph
NW
Sunny
Humidity
56%
Feels like
22°F
Dew Point
18°F
1 PM
33°F
0%
14mph
NW
Mostly Sunny
Humidity
52%
Feels like
23°F
Dew Point
17°F
2 PM
33°F
0%
13mph
NW
Partly Cloudy
Humidity
51%
Feels like
24°F
Dew Point
17°F
3 PM
33°F
0%
13mph
NW
Partly Cloudy
Humidity
52%
Feels like
23°F
Dew Point
17°F
4 PM
31°F
0%
12mph
NW
Partly Cloudy
Humidity
54%
Feels like
22°F
Dew Point
16°F
5 PM
29°F
0%
10mph
NW
Partly Cloudy
Humidity
57%
Feels like
20°F
Dew Point
15°F
5:16 PM
6 PM
27°F
0%
8mph
NW
Partly Cloudy
Humidity
53%
Feels like
18°F
Dew Point
12°F
7 PM
25°F
0%
6mph
NW
Partly Cloudy
Humidity
65%
Feels like
18°F
Dew Point
15°F
8 PM
24°F
0%
5mph
NNW
Mostly Cloudy
Humidity
68%
Feels like
17°F
Dew Point
15°F
9 PM
23°F
0%
5mph
NNW
Cloudy
Humidity
71%
Feels like
16°F
Dew Point
15°F
10 PM
22°F
0%
4mph
NNW
Cloudy
Humidity
74%
Feels like
16°F
Dew Point
15°F
11 PM
21°F
0%
4mph
NNW
Cloudy
Humidity
76%
Feels like
15°F
Dew Point
15°F

Snow Forecast through Saturday

Multiple Snowy Systems Hit Great Lakes, Northeast

As one disturbance exits New England tonight, another will be quick on its heels in the Great Lakes on Friday.

Friday's Weather Outlook

Friday's Weather Outlook

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

(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

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide