Hourly Weather Forecast - Johnston, IA

12 AM
34°F
0%
6mph
W
Cloudy
Humidity
87%
Feels like
29°F
Dew Point
31°F
1 AM
33°F
0%
5mph
W
Partly Cloudy
Humidity
87%
Feels like
28°F
Dew Point
30°F
2 AM
33°F
0%
5mph
W
Mostly Clear
Humidity
87%
Feels like
28°F
Dew Point
29°F
3 AM
32°F
0%
5mph
WNW
Clear
Humidity
88%
Feels like
27°F
Dew Point
29°F
4 AM
31°F
0%
5mph
W
Clear
Humidity
87%
Feels like
27°F
Dew Point
28°F
5 AM
31°F
0%
4mph
W
Mostly Clear
Humidity
86%
Feels like
27°F
Dew Point
27°F
6 AM
31°F
0%
3mph
WSW
Partly Cloudy
Humidity
86%
Feels like
31°F
Dew Point
27°F
7 AM
31°F
0%
2mph
SW
Partly Cloudy
Humidity
85%
Feels like
31°F
Dew Point
27°F
7:36 AM
8 AM
32°F
0%
2mph
S
Partly Cloudy
Humidity
86%
Feels like
32°F
Dew Point
28°F
9 AM
33°F
0%
2mph
S
Partly Cloudy
Humidity
85%
Feels like
33°F
Dew Point
29°F
10 AM
35°F
0%
3mph
SSE
Partly Cloudy
Humidity
84%
Feels like
33°F
Dew Point
31°F
11 AM
37°F
0%
4mph
SSE
Partly Cloudy
Humidity
83%
Feels like
34°F
Dew Point
33°F
12 PM
39°F
0%
5mph
SSE
Partly Cloudy
Humidity
83%
Feels like
35°F
Dew Point
34°F
1 PM
40°F
0%
6mph
SSE
Partly Cloudy
Humidity
82%
Feels like
35°F
Dew Point
35°F
2 PM
40°F
0%
8mph
SSE
Partly Cloudy
Humidity
83%
Feels like
35°F
Dew Point
35°F
3 PM
40°F
0%
9mph
SSE
Partly Cloudy
Humidity
86%
Feels like
34°F
Dew Point
36°F
4 PM
39°F
0%
10mph
SSE
Partly Cloudy
Humidity
89%
Feels like
33°F
Dew Point
36°F
4:45 PM
5 PM
39°F
0%
10mph
SSE
Mostly Cloudy
Humidity
89%
Feels like
33°F
Dew Point
36°F
6 PM
39°F
10%
11mph
SSE
Cloudy
Humidity
86%
Feels like
32°F
Dew Point
35°F
7 PM
40°F
10%
12mph
S
Cloudy
Humidity
87%
Feels like
33°F
Dew Point
37°F
8 PM
41°F
10%
12mph
S
Mostly Cloudy
Humidity
89%
Feels like
34°F
Dew Point
38°F
9 PM
42°F
30%
13mph
S
30% Chance of Light Rain
Humidity
90%
Feels like
36°F
Dew Point
40°F
10 PM
44°F
30%
13mph
SSW
30% Chance of Light Rain
Humidity
88%
Feels like
37°F
Dew Point
40°F
11 PM
45°F
30%
13mph
SW
30% Chance of Light Rain
Humidity
86%
Feels like
38°F
Dew Point
41°F

Snowfall forecast through Sunday A.M.

Winter's Snowy Wrath Blankets Northern Tier

The parade of snow will continue across the northern U.S. and Midwest into the weekend.

Weekend Weather Outlook

Weekend Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

Story Image via pixabay.com

Winter Precipitation

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