National Weather Service

News Headlines

National Weather Service Flood Inundation Mapping Available for Iowa in September 2025

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Fair

59°F

15°C

Humidity	94%
Wind Speed	S 6 mph
Barometer	30.04 in
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	9 Sep 12:15 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Massena IA

Overnight
Low: 58 °F
Chance
T-storms
Tuesday
High: 76 °F
Chance
T-storms then
Partly Sunny
Tuesday Night
Low: 58 °F
Partly Cloudy
Wednesday
High: 84 °F
Sunny
Wednesday Night
Low: 59 °F
Mostly Clear
Thursday
High: 87 °F
Sunny
Thursday Night
Low: 65 °F
Partly Cloudy
Friday
High: 90 °F
Mostly Sunny
Friday Night
Low: 69 °F
Partly Cloudy

Detailed Forecast

Overnight

A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 18 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Mostly cloudy, with a high near 76. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Partly cloudy, with a low around 58. South wind 3 to 6 mph.

Wednesday

Sunny, with a high near 84. Calm wind becoming south southeast around 5 mph in the afternoon.

Wednesday Night

Mostly clear, with a low around 59. Light east wind.

Thursday

Sunny, with a high near 87.

Thursday Night

Partly cloudy, with a low around 65.

Friday

Mostly sunny, with a high near 90.