Ann Arbor, MI 48105 Weather

Washtenaw County6:24 PM EDT42.30°N, 83.71°W

Current conditions

Clear
64°
Clear
Feels like 64°
High 65° Wednesday·Low 43° tonight
WindENE 7 mph
Humidity39%
Dew point39°
Pressure30.37 inHg
Visibility10 mi
Cloud cover5%
UV index0 Low
Sunrise7:54 AM
Sunset6:47 PM

Observed at Detroit, Detroit Metropolitan Wayne County Airport · 29 min ago

Forecast

10-day

  • Tuesday Night

    Partly cloudy, with a low around 43. East wind around 5 mph.

  • Wednesday

    Mostly sunny, with a high near 65. East northeast wind around 2 mph.

  • Wednesday Night

    Mostly clear, with a low around 44. North wind 0 to 3 mph.

National Weather Service forecast updated 1 day ago.

Hourly

Hourly forecast
  1. Now Clear 62°
  2. 7 PM Mostly Clear 60°
  3. 8 PM Mostly Clear 54°
  4. 9 PM Mostly Clear 51°
  5. 10 PM Mostly Clear 50°
  6. 11 PM Mostly Clear 48°
  7. Wed12 AM Partly Cloudy 47°
  8. 1 AM Partly Cloudy 46°
  9. 2 AM Partly Cloudy 46°
  10. 3 AM Mostly Cloudy 45°
  11. 4 AM Mostly Cloudy 44°
  12. 5 AM Partly Cloudy 44°
  13. 6 AM Mostly Sunny 43°
  14. 7 AM Partly Sunny 43°
  15. 8 AM Mostly Sunny 43°
  16. 9 AM Mostly Cloudy 45°
  17. 10 AM Mostly Sunny 49°
  18. 11 AM Sunny 54°
  19. 12 PM Sunny 58°
  20. 1 PM Sunny 61°
  21. 2 PM Sunny 63°
  22. 3 PM Sunny 64°
  23. 4 PM Sunny 65°
  24. 5 PM Sunny 64°

10-day forecast

Details
  1. TonightOct 19 Partly Cloudy Partly Cloudy43°
  2. TodayOct 20 Sunny Sunny43°65°
  3. WedOct 21 Mostly Sunny Mostly Sunny44°65°
  4. ThuOct 22 Sunny Sunny43°66°
  5. FriOct 23 Sunny Sunny42°62°
  6. SatOct 24 Sunny Sunny44°62°
  7. SunOct 25 Mostly Sunny Mostly Sunny46°66°
  8. MonOct 26 Mostly Sunny Mostly Sunny65°
  9. TueOct 27 Rain Rain0.29 in39°52°
  10. WedOct 28 Partly cloudy Partly cloudy36°50°

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

Radar

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Weather news near Ann Arbor

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Air quality

50
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • TueModerate
  • WedModerate
  • ThuModerate

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

Sun & moon

Sunrise 7:54 AM
Sunset 6:47 PM
Daylight 10 h 52 min (−2 min 42 s tomorrow)
Waxing Gibbous · 72% lit
Moonrise 4:07 PM Moonset 1:45 AM
Full moon Oct 26 New moon Nov 9

Nearby

Forecasters' discussion

From the National Weather Service office in DTX, issued 13 hrs ago

Key Messages

- Dry weather with mild afternoon highs and cool morning lows will persist into the weekend.

Dtw Threshold Probabilities

* None.

Prev Discussion

Issued at 300 AM EDT Tue Oct 20 2026

DISCUSSION...

An elongated sfc to mid level ridge axis extending across the Great Lakes region today through Wednesday will maintain the persistent dry pattern across the forecast area. A northern stream short wave forecast to track across northern Ontario Wednesday will drive a weakening sfc cold front into the Great Lakes region Wed night. This frontal boundary will essentially wash out as long wave ridge amplification takes hold across the central US Thurs into Friday, resulting in rebounding mid level heights across Lower Mi. This will strengthen the large low-mid level anticyclone across much of the eastern US, the influence of which will affect Se Mi through Saturday sustaining dry conditions with relatively little cloud cover.

The dry ambient airmass will continue to support relatively cool nights with ample afternoon sunshine today through Saturday. Forecast mixing depths and thermal profiles remain supportive of afternoon highs from the mid 60s to lower 70s today through Thursday. Sfc high pressure is forecast to strengthen to 1035mb across Quebec by Friday. This may drive a slightly cooler airmass across the eastern Great Lakes, warranting a little lower forecast highs on Friday. With the center of the sfc high pressure already centered across NE Ontario and Quebec, light easterly winds off the lakes will contribute to some enhanced fog potential. There are some indications in the hi res suite for some degree of fog expansion across the thumb this morning. A more notable moisture push tonight into Wed morning may allow a more expansive advective fog event off Lake Erie, with the stronger easterly flow possibly supporting the better fog chances farther west toward Adrian and Ann Arbor.

There is indication in Ecwmf and GFS ensemble members that a forecast deeper upper wave tracking across central Canada Sunday into early next week will break down the ridging across the Great Lakes, suggesting a possible pattern change for next week.

MARINE...

Dtx Watches

MI...None. Lake Huron...None. Lake St Clair...None. Michigan waters of Lake Erie...None.

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.