Today
During the day mostly clear, up to +72°, at night around +57°. Light wind, up to 4 mph. No precipitation expected.
Weather in Armstrong
United States · Iowa · 43.3961, -94.4783
Today Now 4:43 PM
+72° Clear
Hourly forecast
Today10/21
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow mostly clear: daytime +75°, nighttime +52° — 4° warmer than today.
Week
Seven days ahead fall within +37°…+75°. Weekly maximum — +75° (Thu). Nighttime weekly low: +37° (Wed). Rain on Sun, Mon, Tue, Wed. Colder closer to the weekend.
Week vs norm
- Today 10/21 +72° +13° usually +59°
- Tomorrow 10/22 +75° +17° usually +58°
- Fri 10/23 +72° +14° usually +58°
- Sat 10/24 +75° +18° usually +57°
- Sun 10/25 +61° +4° usually +57°
- Mon 10/26 +54° −2° usually +56°
- Tue 10/27 +45° −11° usually +56°
- Wed 10/28 +46° −9° usually +55°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 21
Today is warmer than usual for this date.
- Heat record +83° 2024
- Cold record +28° 2018
- Most precipitation 1.2 in 2019
- Strongest gust 40 mph 2017
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Armstrong
Today is about 9° warmer than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +25° / +10° | +17° | 1.2 |
| Feb | +30° / +14° | +21° | 1.3 |
| Mar | +44° / +26° | +34° | 2.6 |
| Apr | +59° / +38° | +47° | 4.1 |
| May | +71° / +50° | +59° | 5.1 |
| Jun | +80° / +61° | +69° | 5.6 |
| Jul | +82° / +64° | +73° | 3.8 |
| Aug | +81° / +62° | +71° | 4.0 |
| Sep | +75° / +55° | +64° | 3.1 |
| Oct | +62° / +43° | +51° | 2.6 |
| Nov | +45° / +29° | +36° | 1.9 |
| Dec | +31° / +16° | +23° | 1.6 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
7:39 AM | 6:24 PM
Moon
4:17 PM | 2:28 AM
Moon phase
Waxing gibbous 78%
Next solar eclipse
Calculating for this city…