Hourly Weather Forecast - Johnston, IA

12 AM
36°F
0%
5mph
SE
Cloudy
Humidity
81%
Feels like
32°F
Dew Point
31°F
1 AM
36°F
0%
5mph
SE
Cloudy
Humidity
82%
Feels like
32°F
Dew Point
31°F
2 AM
36°F
0%
6mph
ESE
Cloudy
Humidity
83%
Feels like
32°F
Dew Point
32°F
3 AM
37°F
10%
6mph
ESE
Cloudy
Humidity
84%
Feels like
32°F
Dew Point
32°F
4 AM
37°F
20%
5mph
ESE
Cloudy
Humidity
85%
Feels like
32°F
Dew Point
33°F
5 AM
36°F
30%
5mph
ESE
30% Chance of Light Rain
Humidity
87%
Feels like
32°F
Dew Point
33°F
6 AM
36°F
40%
5mph
E
40% Chance of Light Rain
Humidity
90%
Feels like
31°F
Dew Point
33°F
6:46 AM
7 AM
36°F
40%
5mph
E
40% Chance of Light Rain
Humidity
90%
Feels like
32°F
Dew Point
33°F
8 AM
37°F
40%
5mph
E
40% Chance of Light Rain
Humidity
88%
Feels like
33°F
Dew Point
34°F
9 AM
39°F
30%
5mph
E
30% Chance of Light Rain
Humidity
84%
Feels like
35°F
Dew Point
34°F
10 AM
40°F
10%
6mph
E
Cloudy
Humidity
81%
Feels like
37°F
Dew Point
35°F
11 AM
42°F
10%
6mph
E
Cloudy
Humidity
79%
Feels like
38°F
Dew Point
36°F
12 PM
43°F
10%
6mph
ENE
Cloudy
Humidity
79%
Feels like
39°F
Dew Point
37°F
1 PM
44°F
30%
6mph
ENE
30% Chance of Light Rain
Humidity
79%
Feels like
40°F
Dew Point
37°F
2 PM
44°F
30%
7mph
ENE
30% Chance of Light Rain
Humidity
79%
Feels like
40°F
Dew Point
38°F
3 PM
44°F
30%
8mph
ENE
30% Chance of Light Rain
Humidity
79%
Feels like
39°F
Dew Point
38°F
4 PM
43°F
30%
7mph
ENE
30% Chance of Light Rain
Humidity
80%
Feels like
39°F
Dew Point
37°F
5 PM
42°F
30%
7mph
ENE
30% Chance of Light Rain
Humidity
81%
Feels like
38°F
Dew Point
37°F
6 PM
41°F
30%
6mph
ENE
30% Chance of Light Rain
Humidity
82%
Feels like
37°F
Dew Point
36°F
6:07 PM
7 PM
40°F
40%
6mph
NE
40% Chance of Light Rain
Humidity
84%
Feels like
36°F
Dew Point
35°F
8 PM
39°F
40%
6mph
NE
40% Chance of Light Rain
Humidity
87%
Feels like
34°F
Dew Point
35°F
9 PM
38°F
40%
6mph
NE
40% Chance of Light Rain
Humidity
89%
Feels like
33°F
Dew Point
35°F
10 PM
37°F
30%
6mph
NE
30% Chance of Light Rain
Humidity
91%
Feels like
32°F
Dew Point
35°F
11 PM
37°F
30%
6mph
NE
30% Chance of Light Rain
Humidity
91%
Feels like
31°F
Dew Point
34°F

Snow and Ice Accumulations through Tuesday AM

Wintry Disturbance Bisects U.S. Mid-Latitudes

A wintry disturbance will bring icing and light snow from the central Plains today through the Northeast on Tuesday.

Today's Weather Outlook

Monday's Weather Outlook

Weekly Drought Map for February 26, 2026

Widespread Drought Degradation For South, Southeast; Mixed Results Elsewhere

Debris flies through the air as howling winds accompanied by a line of storms approach the old Tarrant County Courthouse in downtown Fort Worth, Texas, on March 2, 2023. (Tom Fox/The Dallas Morning News via AP)

Lightning Season Rapidly Approaching: Best Safety Practices

Rocky Mountain National Park at day in December. (NPS Natural Resources/Wikimedia Commons)

Snowmelt and Flooding

U.S. Route 52 near St. Donatus between Bellevue and Dubuque, Iowa. (Tony Webster from Portland, Oregon)

Winter Weather Driving Safety Tips

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