Grafton, WI 53024 Weather

Ozaukee County11:58 AM CDT43.32°N, 87.95°W

Current conditions

Sunny
62°
Sunny
Feels like 62°
High 66°·Low 48°
WindCalm
Humidity72%
Dew point53°
Visibility10.0 mi
Cloud cover5%
UV index3 Moderate
Sunrise7:15 AM
Sunset5:59 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Today

    Sunny. High near 66, with temperatures falling to around 59 in the afternoon. East wind 0 to 5 mph.

  • Tonight

    Patchy fog after 8pm. Partly cloudy, with a low around 48. East wind 0 to 5 mph.

  • Friday

    Patchy fog before 9am. Mostly sunny. High near 65, with temperatures falling to around 60 in the afternoon. Southeast wind 0 to 10 mph.

National Weather Service forecast updated 2 hrs ago.

Hourly

Hourly forecast
  1. Now Sunny 62°
  2. 12 PM Sunny 64°
  3. 1 PM Sunny 64°
  4. 2 PM Sunny 65°
  5. 3 PM Sunny 64°
  6. 4 PM Sunny 64°
  7. 5 PM Sunny 59°
  8. 6 PM Partly Cloudy 57°
  9. 7 PM Partly Cloudy 54°
  10. 8 PM Patchy Fog 53°
  11. 9 PM Patchy Fog 53°
  12. 10 PM Patchy Fog 52°
  13. 11 PM Patchy Fog 52°
  14. Fri12 AM Patchy Fog 51°
  15. 1 AM Patchy Fog 51°
  16. 2 AM Patchy Fog 51°
  17. 3 AM Patchy Fog 51°
  18. 4 AM Patchy Fog 51°
  19. 5 AM Patchy Fog 50°
  20. 6 AM Patchy Fog 50°
  21. 7 AM Patchy Fog 50°
  22. 8 AM Patchy Fog 51°
  23. 9 AM Partly Sunny 54°
  24. 10 AM Partly Sunny 57°

10-day forecast

Details
  1. TodayOct 22 Sunny Sunny48°66°
  2. FriOct 23 Patchy Fog then Mostly Sunny Patchy Fog then Mostly Sunny49°65°
  3. SatOct 24 Mostly Sunny Mostly Sunny52°68°
  4. SunOct 25 Partly Sunny Partly Sunny50°69°
  5. MonOct 26 Mostly Cloudy Mostly Cloudy26%45°59°
  6. TueOct 27 Chance Rain Showers Chance Rain Showers26%43°58°
  7. WedOct 28 Slight Chance Rain Showers then Partly Sunny Slight Chance Rain Showers then Partly Sunny19%44°58°
  8. ThuOct 29 Cloudy Cloudy0.05 in37°61°
  9. FriOct 30 Sunny Sunny32°47°
  10. SatOct 31 Mostly sunny Mostly sunny33°53°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near Grafton

More weather news

Air quality

61
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • ThuModerate
  • FriModerate
  • SatModerate

Milwaukee-Ozaukee, WI reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:15 AM
Sunset 5:59 PM
Daylight 10 h 44 min (−2 min 47 s tomorrow)
Waxing Gibbous · 86% lit
Moonrise 4:07 PM Moonset 3:13 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low56° / 37°
Record high82° (2024)
Record low19° (1982)
Wettest0.68 in (1965)
Month to date2.50 in (normal 1.82 in)

Germantown Wastewater Utility, records since 1944. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in MKX, issued 5 hrs ago

Key Messages

- Marine Dense Fog Advisory in effect for northern third of the lake until 1 PM CDT.

- Fog possible tonight, potentially dense, primarily closer to the lake

- Above normal temperatures & rain-free conditions continue into the weekend.

- Temperatures trending back toward normal next week, with chances for rain Monday night into Tuesday and Wednesday night.

Update

Issued 700 AM CDT Thu Oct 22 2026

Some patchy fog out there this morning but as the sun comes up fog will clear out with light winds and mostly clear conditions through the day. Some models are suggestive of the lake breeze today increasing moisture behind it and potentially setting up a situation for fog and low stratus tonight, primarily near the lake. Dense fog will be possible.

Kuroski

Short Term

Issued 1152 PM CDT Wed Oct 21 2026

The rest of tonight through Thursday night:

Mostly clear skies and light winds under high pressure will continue tonight into Thursday. Temps have been dropping a bit faster this evening than anticipated, so may need to lower overnight lows a bit. Still think there could be some patchy fog later tonight into early Thursday. Highs tomorrow will be very similar to this past afternoon, though may be a touch cooler near the lake under light onshore winds. Wouldn't be surprised by more fog chances Thursday night, as the light winds and limited cloud cover continue.

DDV

Long Term

Issued 1152 PM CDT Wed Oct 21 2026

Friday through Wednesday:

Surface high pressure and an upper ridge are expected to maintain enough of influence across southern Wisconsin to keep dry weather and above normal temps going Friday through Sunday. Dry weather may persist into Monday, depending on the timing of a trough and front passage, which has been trending slower. The trough is likely to move through by Tuesday, bringing rain chances back to the forecast area along with cooler conditions for mid-week.

DDV

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.