Hourly Weather Forecast - Armstrong, IA

1 AM
12°F
0%
4mph
NNW
Mostly Cloudy
Humidity
85%
Feels like
5°F
Dew Point
8°F
2 AM
11°F
0%
3mph
N
Mostly Cloudy
Humidity
84%
Feels like
5°F
Dew Point
8°F
3 AM
11°F
0%
3mph
NNE
Mostly Cloudy
Humidity
84%
Feels like
11°F
Dew Point
7°F
4 AM
10°F
0%
2mph
NE
Mostly Cloudy
Humidity
84%
Feels like
10°F
Dew Point
6°F
5 AM
10°F
0%
2mph
ESE
Mostly Cloudy
Humidity
83%
Feels like
10°F
Dew Point
6°F
6 AM
10°F
10%
3mph
SE
Mostly Cloudy
Humidity
83%
Feels like
5°F
Dew Point
6°F
7 AM
11°F
10%
4mph
SSE
Mostly Cloudy
Humidity
84%
Feels like
3°F
Dew Point
7°F
7:40 AM
8 AM
12°F
10%
5mph
SSE
Cloudy
Humidity
85%
Feels like
3°F
Dew Point
9°F
9 AM
13°F
30%
7mph
SSE
30% Chance of Flurries
Humidity
86%
Feels like
3°F
Dew Point
10°F
10 AM
15°F
30%
8mph
SSE
30% Chance of Snow
Humidity
87%
Feels like
4°F
Dew Point
12°F
11 AM
16°F
30%
9mph
SSE
30% Chance of Snow
Humidity
89%
Feels like
5°F
Dew Point
13°F
12 PM
17°F
50%
10mph
SSE
50% Chance of Snow
Humidity
90%
Feels like
6°F
Dew Point
15°F
1 PM
18°F
70%
10mph
SSE
70% Chance of Heavy Snow
Humidity
91%
Feels like
7°F
Dew Point
16°F
2 PM
19°F
80%
9mph
SE
80% Chance of Heavy Snow
Humidity
92%
Feels like
8°F
Dew Point
17°F
3 PM
20°F
70%
9mph
SE
70% Chance of Heavy Snow
Humidity
92%
Feels like
9°F
Dew Point
18°F
4 PM
20°F
70%
9mph
ESE
70% Chance of Heavy Snow
Humidity
93%
Feels like
9°F
Dew Point
18°F
4:41 PM
5 PM
20°F
50%
8mph
ESE
50% Chance of Heavy Snow
Humidity
92%
Feels like
10°F
Dew Point
18°F
6 PM
19°F
30%
7mph
E
30% Chance of Flurries
Humidity
92%
Feels like
10°F
Dew Point
18°F
7 PM
19°F
20%
7mph
E
Cloudy
Humidity
93%
Feels like
10°F
Dew Point
17°F
8 PM
18°F
10%
6mph
ENE
Cloudy
Humidity
93%
Feels like
10°F
Dew Point
17°F
9 PM
18°F
10%
5mph
ENE
Cloudy
Humidity
93%
Feels like
10°F
Dew Point
16°F
10 PM
17°F
0%
5mph
NE
Cloudy
Humidity
93%
Feels like
10°F
Dew Point
16°F
11 PM
17°F
0%
4mph
NNE
Cloudy
Humidity
93%
Feels like
10°F
Dew Point
15°F

Snow and ice forecast through Friday A.M.

Multiple Snow Threats Across the Northern U.S.

Multiple systems will bring snow across the Northern U.S. through the end of the week.

Rainfall Forecast for Northwest through Friday A.M.

Unrelenting Rains Soak the Northwest

Thursday's Weather Outlook

Thursday's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

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

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide