National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Hazardous Weather Conditions

Current conditions at

Ames, Ames Municipal Airport (KAMW)

Lat: 41.99°NLon: 93.62°WElev: 945ft.

Partly Cloudy

77°F

25°C

Humidity 82%
Wind Speed E 9 G 18 mph
Barometer 29.96 in (1013.6 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 6 Sep 3:53 pm CDT
Extended Forecast for

Gilbert IA

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly cloudy, with a high near 82. East wind around 8 mph.

    High: 82 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers before midnight, then a chance of showers after 1am. Mostly cloudy, with a low around 65. East southeast wind 5 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 65 °F

    Chance
    Showers

  • Labor Day

    Labor Day: A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 84. Southeast wind 10 to 14 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 84 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67. Southeast wind 13 to 15 mph, with gusts as high as 20 mph.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 91. South southeast wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Showers

  • Wednesday

    Wednesday: A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 83. Chance of precipitation is 10%.

    High: 83 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly cloudy, with a high near 82. East wind around 8 mph.
Tonight
A chance of showers before midnight, then a chance of showers after 1am. Mostly cloudy, with a low around 65. East southeast wind 5 to 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Labor Day
A 40 percent chance of showers, mainly before 11am. Partly sunny, with a high near 84. Southeast wind 10 to 14 mph, with gusts as high as 21 mph. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 67. Southeast wind 13 to 15 mph, with gusts as high as 20 mph.
Tuesday
A slight chance of showers and thunderstorms before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 91. South southeast wind around 10 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and possibly a thunderstorm. Low around 67. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A slight chance of thunderstorms before 7am. Mostly sunny, with a high near 83. Chance of precipitation is 10%.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 60.
Friday
Mostly sunny, with a high near 84.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 63.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gilbert IA
 42.11°N 93.65°W
Last Update:
1:26 pm CDT Sep 6, 2026
Forecast Valid:
4pm CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation