Wind
14 mph
G 20 mph
SE
Local Forecast
Current conditions, 5-day forecast, and active NWS weather alerts for Waterloo, IA.
Hour-by-Hour Current Observation
Cloudy
Wind
14 mph
G 20 mph
SE
UV Index
5
Moderate
Humidity
84%
Dew 75°F
Sun
5:34 AM · 8:50 PM
Rise · Set
Source: WATERLOO (KALO). Slider scrubs the next 12 hours.
5-Day Outlook
Today
Chance of Thunderstorms
Overnight: Mostly Cloudy
Today
A chance of showers and thunderstorms before 2pm. Partly sunny. High near 90, with temperatures falling to around 88 in the afternoon. South southeast wind around 20 mph, with gusts as high as 31 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Night
Partly cloudy. Low around 76, with temperatures rising to around 78 overnight. Heat index values as high as 100. South wind 12 to 17 mph, with gusts as high as 28 mph.
Monday
Mostly Sunny
Overnight: Partly Cloudy
Monday
Sunny, with a high near 95. Heat index values as high as 109. South wind 12 to 21 mph, with gusts as high as 33 mph.
Night
Mostly clear, with a low around 78. Heat index values as high as 109. South wind 13 to 21 mph, with gusts as high as 32 mph.
Tuesday
Partly Sunny
Overnight: Chance of Scattered Thunderstorms
Tuesday
Sunny, with a high near 95. South southwest wind 13 to 17 mph, with gusts as high as 28 mph.
Night
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 75. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Wednesday
Mostly Sunny
Overnight: Chance of Scattered Thunderstorms
Wednesday
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 40%.
Night
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 74. Chance of precipitation is 40%.
Thursday
Isolated T-storm
Overnight: Chance of Scattered Thunderstorms
Thursday
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
Night
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%.
Waterloo, IA Weather Analysis Tools
Regional Radar
Composite reflectivity with Lightning overlay.
Regional Observations
Regional & historic weather conditions near Waterloo, IA.
Active Alerts
Per-location alert detail and NWS source feeds.
Storm Reports
Recent storm reports including wind, hail, and tornadoes.
Model Analysis
Interactive forecast model guidance.
Satellite Imagery
GOES-East and GOES-West, visible and infrared.