Wauwatosa, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Wauwatosa weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast36%—80°66°—
- SundayJul 5Overcast10%—78°62°-2°
- MondayJul 6Overcast——78°63°0°
- TuesdayJul 7Overcast——82°61°+4°
- WednesdayJul 8Light Drizzle28%—84°63°+2°
- ThursdayJul 9Light Showers32%—71°65°-13°
- FridayJul 10Mostly Clear22%—78°63°+7°
AQI 39 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 5.0 µg/m³ (AQI 28) with a 0.93 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 5.0 µg/m³ (AQI 28) with a 0.93 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.93
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:51 PM
- Moonset
- 9:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Wauwatosa at a glance
- Today vs. normal: 71°F — typical for the season
- Last frost: May 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Wauwatosa
- Sat80°66°36%
- Sun78°62°10%
- Mon78°63°3%
- Tue82°61°1%
- Wed84°63°28%
- Thu71°65°32%
- Fri78°63°22%
- Sat83°63°11%
- Sun67°61°10%
- Mon76°60°8%
- Tue77°62°13%
- Wed82°64°17%
- Thu86°68°33%
- Fri87°69°30%
- Sat85°69°32%
- Sun87°68°35%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Wauwatosa
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Wauwatosa
SPC includes Wauwatosa in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
Microseason · July 1–5
Cicadas claim the afternoon
Annual cicada buzz begins, peaking in the heat of the day.
Day 185 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | — | — |
| May | lettuce, peas, spinach, radishes | lettuce, peas, radishes |
| June | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | — | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
In Wauwatosa, August runs warmest near 73°F and January coldest around 23°F, while May is the wettest month (3.7 inches) and January the driest (1.8 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 23° | 1.8″ | 18 |
| February | 24° | 1.8″ | 14 |
| March | 32° | 2.6″ | 16 |
| April | 43° | 3.2″ | 17 |
| May | 52° | 3.7″ | 18 |
| June | 64° | 3.5″ | 17 |
| July | 73° | 2.6″ | 15 |
| August | 73° | 2.7″ | 14 |
| September | 67° | 3.1″ | 14 |
| October | 55° | 2.9″ | 15 |
| November | 40° | 3.1″ | 15 |
| December | 28° | 2.2″ | 16 |
Regional context
Per NOAA NCEI 1991-2020 normals, Wauwatosa runs from a 23°F January mean to 73°F in July, a 50°F seasonal spread, with near 33.1 inches of precipitation across about 189 wet days.
No season owns Wauwatosa's rain: May reaches 3.7 inches across 18.0 days and January keeps 1.8 inches on 17.8, an even spread through Wauwatosa's year. It is a balanced pattern Wauwatosa shares with places like Elm Grove, WI, Milwaukee, WI and Butler, WI.
Wauwatosa reaches its last hard frost near late-May; that is the cue for kale, peas, spinach, and parsnips. Heat-demanding starts go out a fortnight on in Wauwatosa, after the soil warms and cold snaps clear. By early-October, frost is back in Wauwatosa — protect or harvest anything tender. Wauwatosa's low ground holds frost later into spring than Wauwatosa's benches, which run 3-5 days ahead.
Similar climates: Elm Grove, WI, Milwaukee, WI, Butler, WI, West Allis, WI, Brookfield, WI.
Frequently asked
- When does it freeze in Wauwatosa?
- In Wauwatosa, expect the last spring frost near mid-May; Wauwatosa's first autumn frost comes around mid-October.
- What is the rainy season in Wauwatosa?
- Wauwatosa sees its heaviest rain in May (around 3.7 inches), part of roughly 33 inches a year.
- What is the warmest month in Wauwatosa?
- The warmest stretch in Wauwatosa comes in August, around 73°F on average.
- What is the coldest month in Wauwatosa?
- On average January is the chilliest month in Wauwatosa, about 23°F.
- When can I start a vegetable garden in Wauwatosa?
- Wauwatosa's last frost (mid-May) cues hardy greens; in Wauwatosa, hold heat-lovers two weeks past.
- How many rainy days does Wauwatosa get?
- Expect roughly 189 wet days a year in Wauwatosa.
- What hardiness zone is Wauwatosa?
- Wauwatosa's USDA zone comes from its January mean (23°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Wauwatosa?
- Wauwatosa's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Wauwatosa?
- See this week's day-by-day rain chances for Wauwatosa in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Wauwatosa?
- Current conditions for Wauwatosa and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Wauwatosa forecast updated?
- The Wauwatosa forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Wauwatosa?
- Today's sunrise and sunset times for Wauwatosa are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Wauwatosa?
- The next few days in Wauwatosa's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Wauwatosa, Wisconsin occupies a warm-summer humid continental zone, with January means near 23°F and July around 73°F — a 50°F swing.
Yearly precipitation in Wauwatosa totals around 33 inches, spread over about 189 days of rain or snow.
Latitude 43.1°N gives Wauwatosa its 50°F swing, and with it the rhythm of Wauwatosa's growing season.
ZIP codes in Wauwatosa
- 53213
- 53225
- 53226
- 53222