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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.

Partly Cloudy

81°F

27°C

Humidity	48%
Wind Speed	SW 6 mph
Barometer	30.07 in
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	29 Aug 3:35 pm CDT

More Information:

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

Extended Forecast for

4 Miles S Massena IA

This Afternoon
High: 82 °F
Mostly Sunny
Tonight
Low: 59 °F
Partly Cloudy
Saturday
High: 78 °F
Partly Sunny
Saturday Night
Low: 62 °F
Slight Chance
T-storms then
Chance
Showers
Sunday
High: 70 °F
Showers
Likely
Sunday Night
Low: 60 °F
Chance
T-storms then
Showers
Likely
Labor Day
High: 68 °F
Showers
Likely
Monday Night
Low: 56 °F
Slight Chance
T-storms then
Chance
Showers
Tuesday
High: 74 °F
Partly Sunny

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 82. South wind around 6 mph.

Tonight

Partly cloudy, with a low around 59. Calm wind.

Saturday

Partly sunny, with a high near 78. South southeast wind 3 to 6 mph.

Saturday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Cloudy, with a low around 62. East southeast wind 3 to 6 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers likely, with thunderstorms also possible after 1pm. Cloudy, with a high near 70. Southeast wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between three quarters and one inch possible.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Cloudy, with a low around 60. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Labor Day

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56.

Tuesday

Partly sunny, with a high near 74.

Tuesday Night

Partly cloudy, with a low around 55.

Wednesday

Partly sunny, with a high near 67.

Wednesday Night

Mostly clear, with a low around 43.

Thursday

Mostly sunny, with a high near 64.