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July 20, 2026 - Tornado Track Update

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Waterloo, Waterloo Municipal Airport (KALO)

Lat: 42.55°NLon: 92.4°WElev: 873ft.

Overcast

69°F

21°C

Humidity	87%
Wind Speed	W 9 mph
Barometer	30.00 in (1015.4 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	4 Aug 6:54 am CDT

More Information:

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

Extended Forecast for

Waterloo IA

Today
High: 80 °F
Chance
T-storms
Tonight
Low: 62 °F
T-storms
Wednesday
High: 74 °F
Chance
T-storms then
Slight Chance
Showers
Wednesday Night
Low: 56 °F
Slight Chance
Showers
Thursday
High: 79 °F
Sunny
Thursday Night
Low: 61 °F
Mostly Clear
Friday
High: 82 °F
Sunny
Friday Night
Low: 66 °F
Mostly Clear
Saturday
High: 86 °F
Sunny

Detailed Forecast

Today

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 80. South southwest wind around 8 mph becoming northwest in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms, mainly before 3am. Low around 62. North northwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday

A chance of showers and thunderstorms before 10am, then a slight chance of showers after 3pm. Partly sunny, with a high near 74. North wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A 20 percent chance of showers before 1am. Mostly clear, with a low around 56. Light north wind.

Thursday

Sunny, with a high near 79. Light and variable wind.

Thursday Night

Mostly clear, with a low around 61.

Friday

Sunny, with a high near 82.

Friday Night

Mostly clear, with a low around 66.

Saturday

Sunny, with a high near 86.