Ottawa, WI Weather Forecast
Waukesha County, Wisconsin
Live radar, warnings and storm tracking for Ottawa, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Ottawa
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Ottawa, WI at a glance
Ottawa is home to about 3,657 people in Waukesha County, across 33 square miles. It ranks 227th by population of 322 places in Wisconsin with a forecast here. The nearest neighbour with its own forecast is Summit, 5 miles away.
- County
- Waukesha County
- Population
- 3,657 2023 est.
- Land area
- 33 sq mi
- People per sq mi
- 112
- Forecast point
- 42.9800°N, 88.4738°W
How well can the network see Ottawa?
The nearest Doppler radar is KMKX (Milwaukee, WI), to the WSW. Its lowest scan passes about 190 ft above Ottawa. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Ottawa show up clearly. Ottawa is closer to its radar than 99% of US cities.
The closest weather station is KUES (Waukesha Cnty). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Ottawa
- Summit, WI5 mi
- Wales, WI6 mi
- Genesee, WI6 mi
- Delafield, WI7 mi
- Oconomowoc, WI8 mi
- Hartland, WI11 mi
- Mukwonago, WI12 mi
- Waukesha, WI12 mi
Elsewhere in Wisconsin
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