Milwaukee, Wisconsin Weather
Night falls a minute earlier. Day 43 of summer. Read this microseason across nine climate regions →
Milwaukee weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Overcast——73°63°—
- MondayAug 3Partly Cloudy——78°62°+5°
- TuesdayAug 4Overcast10%—83°60°+5°
- WednesdayAug 5Thunderstorm58%0.12″80°66°-3°
- ThursdayAug 6Showers43%0.43″78°64°-2°
- FridayAug 7Light Drizzle——84°64°+6°
- SaturdayAug 8Light Drizzle17%—89°68°+5°
AQI 55 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.7 µg/m³, PM10 at 10.0 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 32 now. With UV 4.2 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 13.
- Present
- AQI 32
- UV peak
- 4.2 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 13
PM × Wind × Precip
PM2.5 at 9.7 µg/m³, PM10 at 10.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.97
- Wind
- breezy
- Recent rain
- 0h in last 6h
- Pattern
- background
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).








































Red sky at night, sailor's delight.
- Moonrise
- 9:36 PM
- Moonset
- 9:58 AM
- In sign
- ♓︎ Pisces
Night falls a minute earlier
Milwaukee at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: May 4 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
ZIP codes: 53202, 53203, 53204, 53205, 53206, 53207, 53208, 53209 +21 more
16-Day Forecast — Milwaukee
- Sun73°63°1%
- Mon78°62°0%
- Tue83°60°10%
- Wed80°66°58%
- Thu78°64°43%
- Fri84°64°7%
- Sat89°68°17%
- Sun91°75°24%
- Mon75°65°24%
- Tue78°63°24%
- Wed87°68°23%
- Thu86°70°23%
- Fri93°71°24%
- Sat79°67°20%
- Sun77°65°16%
- Mon76°66°16%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Milwaukee
Right now in the garden
Peak growing season
As of August 2, 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 — Milwaukee
SPC includes Milwaukee in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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.
Sun & seasons in Milwaukee
Milwaukee sits in Milwaukee County, where the year’s longest day runs 15h 22m of daylight and its shortest just 9h 0m — a swing of +6h 23m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Madison, the state’s largest city, lies about 72 miles to the W. The nearest town Milwaukee tracks is Racine, roughly 25 miles to the SSE.
Air quality in Milwaukee’s county has trended cleaner since 2020; its cleanest year on record was 2024 (median AQI 43). See the full air-quality history for Milwaukee.
Microseason · August 1–5
Night falls a minute earlier
Sunset retreats perceptibly — daylight shortening speeds up.
Day 214 of 365 · Wedge 43 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 Milwaukee, 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, Milwaukee 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 Milwaukee's rain: May reaches 3.7 inches across 18.0 days and January keeps 1.8 inches on 17.8, an even spread through Milwaukee's year. That lines Milwaukee up with places like Wauwatosa, WI, West Milwaukee, WI and Shorewood, WI, fed by overlapping storm tracks.
Milwaukee reaches its last hard frost near late-May; that is the cue for kale, peas, spinach, and parsnips. Tomatoes and peppers do best set out two weeks later in Milwaukee, once nights clear the mid-40s°F. By early-October, frost is back in Milwaukee — protect or harvest anything tender. A creek-bottom lot in Milwaukee can lag Milwaukee's last frost 7-10 days behind a south slope.
Similar climates: Wauwatosa, WI, West Milwaukee, WI, Shorewood, WI, Whitefish Bay, WI, Glendale, WI.
Naturalist notes
Late May brings the first blooms of wild lupine across Wisconsin's sandy soils, their purple spikes emerging as soil temperatures consistently reach 60°F.
American robins begin their dawn chorus in earnest during the third week of April, when daylight extends past 13 hours.
Frequently asked
- When does it freeze in Milwaukee?
- Frost typically leaves Milwaukee by mid-May and returns to Milwaukee near mid-October.
- What is the rainy season in Milwaukee?
- May is the wettest month in Milwaukee, about 3.7 inches on average; the year totals roughly 33 inches.
- What is the warmest month in Milwaukee?
- August is Milwaukee's warmest month, averaging about 73°F.
- What is the coldest month in Milwaukee?
- Milwaukee bottoms out in January, with a mean near 23°F.
- When can I start a vegetable garden in Milwaukee?
- Milwaukee's last frost (mid-May) cues hardy greens; in Milwaukee, hold heat-lovers two weeks past.
- How many rainy days does Milwaukee get?
- Milwaukee records around 189 days of measurable precipitation annually.
- What hardiness zone is Milwaukee?
- Milwaukee sits in the USDA zone set by January lows near 23°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Milwaukee?
- Milwaukee'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 Milwaukee?
- See this week's day-by-day rain chances for Milwaukee in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Milwaukee?
- Current conditions for Milwaukee and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Milwaukee forecast updated?
- The Milwaukee forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Milwaukee?
- Today's sunrise and sunset times for Milwaukee 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 Milwaukee?
- The next few days in Milwaukee's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
Milwaukee, Wisconsin occupies a warm-summer humid continental zone, with January means near 23°F and July around 73°F — a 50°F swing.
Rain and snow bring Milwaukee roughly 33 inches a year across approximately 189 measurable-precipitation days.
The 50°F gap between Milwaukee's summer and winter, at 43.1°N, shapes Milwaukee's frost calendar.
ZIP codes in Milwaukee
- 53203
- 53202
- 53207
- 53206
- 53205
- 53204
- 53209
- 53208
- 53233
- 53218
- 53219
- 53214
- 53215
- 53216
- 53210
- 53211
- 53212
- 53213
- 53295
- 53225
- 53224
- 53221
- 53220
- 53223
- 53222
- 53228
- 53201
- 53237
- 53259
- 53263
- 53274
- 53278
- 53288
- 53290
- 53293