Brookfield, WI Monthly Weather

Waukesha County3:48 AM CDT43.06°N, 88.11°WElevation 830 ft
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October 2026

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165°/59°1.30 inAvg 67°/45°
264°/48°0.32 inAvg 66°/45°
365°/40°Avg 66°/44°
468°/49°Avg 65°/44°
569°/41°Avg 65°/44°
667°/46°Avg 64°/43°
773°/51°Avg 64°/43°
875°/43°Avg 64°/42°
969°/47°Avg 63°/42°
1067°/53°0.05 inAvg 63°/42°
1182°/49°Avg 62°/42°
1279°/54°Avg 62°/41°
1386°/63°Avg 61°/41°
1477°/59°<0.01 inAvg 61°/40°
1562°/55°Avg 60°/40°
1658°/49°0.50 inAvg 60°/40°
1755°/31°0.05 inAvg 60°/40°
1857°/31°<0.01 inAvg 59°/39°
1964°/38°Avg 59°/39°
2062°/40°Avg 58°/38°
21Avg 58°/38°
22Avg 57°/38°
23 Areas Of Fog then Mostly Sunny 70°/52°Avg 57°/38°
24 Partly Sunny 70°/54°Avg 56°/37°
25 Partly Sunny 71°/51°Avg 56°/37°
26 Mostly Cloudy 61°/47°Avg 56°/36°
27 Mostly Cloudy 58°/47°Avg 55°/36°
28 Partly Sunny 63°/48°Avg 54°/36°
29 Slight Chance Rain Showers 62°/–Avg 54°/35°
30 Partly cloudy 47°/33°Avg 54°/35°
31 Partly cloudy 57°/30°Avg 53°/35°
Average high68° (normal 62°)
Average low47° (normal 42°)
Warmest / coldest86° / 31°
Precipitation2.22 in (normal 1.96 in to date)

Observed: Waukesha Wwtp, 14 km away, records since 1894. Normals 1991–2020. Climate data from NOAA's Regional Climate Centers (ACIS); recent days are preliminary. Days ahead: the forecast.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.