National Weather Service

News Headlines

Hazardous Weather Conditions

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

A Few Clouds

70°F

21°C

Humidity	82%
Wind Speed	SE 8 mph
Barometer	29.77 in (1007.7 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Last update	21 May 12:54 am CDT

More Information:

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

Extended Forecast for

Waterloo IA

Flood Watch until May 21, 07:00pm

Flood Watch May 22, 10:00pm until May 23, 10:00am

Click here for hazard details and duration

Flood Watch

Flood Watch until May 21, 07:00pm
NOW until 7:00pm Tue
Flood Watch
Overnight
Low: 67 °F
Severe
Thunderstorms
Tuesday
High: 81 °F
Severe
Thunderstorms
and Windy
Tuesday Night
Low: 52 °F
Severe
Thunderstorms
and Windy
Wednesday
High: 72 °F
Mostly Sunny
Wednesday Night
Low: 51 °F
Mostly Clear
Thursday
High: 78 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
then Slight
Chance
T-storms
Friday
High: 79 °F
Chance
T-storms then
Showers
Likely

Detailed Forecast

Overnight

A 50 percent chance of showers and thunderstorms, mainly after 3am. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 67. Southeast wind 7 to 9 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday

Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. Some of the storms could be severe and produce heavy rainfall. High near 81. Windy, with a south southeast wind 10 to 15 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Tuesday Night

Showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Some of the storms could be severe. Low around 52. Windy, with a west wind 15 to 22 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Mostly sunny, with a high near 72. West wind around 14 mph, with gusts as high as 22 mph.

Wednesday Night

Mostly clear, with a low around 51. West southwest wind 5 to 10 mph.

Thursday

Sunny, with a high near 78.

Thursday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 56.

Friday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

Saturday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 72.

Saturday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53.

Sunday

A 30 percent chance of showers. Partly sunny, with a high near 75.

Sunday Night

A 50 percent chance of showers. Mostly cloudy, with a low around 55.

Memorial Day

A 40 percent chance of showers. Mostly sunny, with a high near 75.