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Armstrong, IA

54°F
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Armstrong

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54°
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Armstrong, IA Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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Today Hourly 10-Day Radar MinuteCast®

Monthly

Air Quality Health & Activities
Special Weather Statement

May

January February March April May June July August September October November December

2026

2025 2026 2027

10-Day

S
M
T
W
T
F
S
26
Clouds, afternoon rain
61°
37°
27
Sunny
54°
32°
28
Mostly sunny
56°
35°
29
Sunshine and a few clouds
58°
32°
30
Increasing clouds
55°
35°
1
A blend of sun and clouds
61°
43°
2
A little morning rain
58°
43°
3
Mostly cloudy
57°
38°
4
Mostly sunny
56°
34°
5
Plenty of sun
57°
34°
6
Partly sunny
66°
46°
7
A couple of morning showers
69°
40°
8
Cooler with increasing clouds
58°
40°
9
Cloudy
59°
39°
10
Mostly sunny
58°
37°
11
Cloudy
60°
48°
12
Mostly cloudy and warmer
71°
49°
13
Rain becoming steadier
60°
46°
14
A couple of afternoon showers
61°
43°
15
Rather cloudy
60°
40°
16
Turning cloudy
62°
44°
17
Periods of rain
67°
51°
18
A bit of rain in the morning
64°
53°
19
Rain
70°
50°
20
Sunshine
64°
46°
21
Mostly sunny
67°
50°
22
Sunshine and a few clouds
73°
51°
23
Mostly sunny
72°
54°
24
Sun yielding to clouds
74°
54°
25
Couple of thunderstorms
75°
54°
26
A shower and thunderstorm
75°
55°
27
A t-storm around in the a.m.
76°
55°
28
A couple of thunderstorms
77°
53°
29
Humid with thunderstorms
78°
54°
30
Partly sunny and less humid
76°
48°
31
Plenty of sunshine
75°
47°
1
Mostly sunny
69°
47°
2
Sunshine and a few clouds
70°
46°
3
Mostly sunny
70°
49°
4
Sunny
71°
54°
5
An afternoon t-storm or two
72°
57°
6
A shower and t-storm; warmer
78°
52°

Temperature Graph

°F
80° 70° 60° 50° 40° May
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo

May Weather in Armstrong

Armstrong's May 2026 forecast shows daily high temperatures ranging from 54° to 78°, with overnight lows between 32° and 57°. The average high for May is 66° with an average low of 46°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how May weather will actually feel in Armstrong. See also: June | July | August.

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Weather Near Armstrong:

  • Norfolk, NE
  • Sioux City, IA
  • South Sioux City, NE
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