Bay City, MI 48707 Weather

Bay County2:02 AM EDT43.74°N, 83.93°W

Current conditions

Clear
46°
Clear
Feels like 44°
High 66°·Low 41° tonight
WindSSE 5 mph
Humidity87%
Dew point43°
Pressure30.34 inHg
Visibility10 mi
Cloud cover30%
UV index0 Low
Sunrise7:58 AM
Sunset6:44 PM

Observed at MBS International Airport · 22 min ago

Forecast

10-day

  • Tonight

    Patchy fog between 3am and 5am. Mostly clear, with a low around 41. Southeast wind around 5 mph.

  • Wednesday

    Patchy fog before 8am. Mostly sunny, with a high near 66. Southwest wind around 6 mph.

  • Wednesday Night

    Mostly clear, with a low around 45. West wind around 5 mph.

National Weather Service forecast updated 9 hrs ago.

Hourly

Hourly forecast
  1. Now Partly Cloudy 45°
  2. 3 AM Patchy Fog 44°
  3. 4 AM Patchy Fog 43°
  4. 5 AM Partly Cloudy 42°
  5. 6 AM Patchy Fog 42°
  6. 7 AM Patchy Fog 41°
  7. 8 AM Mostly Sunny 41°
  8. 9 AM Mostly Sunny 44°
  9. 10 AM Mostly Sunny 48°
  10. 11 AM Mostly Sunny 52°
  11. 12 PM Mostly Sunny 57°
  12. 1 PM Mostly Sunny 60°
  13. 2 PM Sunny 64°
  14. 3 PM Sunny 65°
  15. 4 PM Sunny 65°
  16. 5 PM Sunny 65°
  17. 6 PM Clear 64°
  18. 7 PM Mostly Clear 61°
  19. 8 PM Partly Cloudy 58°
  20. 9 PM Partly Cloudy 53°
  21. 10 PM Mostly Clear 52°
  22. 11 PM Mostly Clear 50°
  23. Thu12 AM Mostly Clear 49°
  24. 1 AM Mostly Clear 48°

10-day forecast

Details
  1. TonightOct 20 Mostly Clear then Patchy Fog Mostly Clear then Patchy Fog41°
  2. TodayOct 21 Patchy Fog then Mostly Sunny Patchy Fog then Mostly Sunny45°66°
  3. ThuOct 22 Sunny Sunny40°60°
  4. FriOct 23 Sunny Sunny40°60°
  5. SatOct 24 Mostly Sunny Mostly Sunny47°64°
  6. SunOct 25 Partly Sunny Partly Sunny46°68°
  7. MonOct 26 Partly Sunny Partly Sunny15%41°59°
  8. TueOct 27 Mostly Sunny Mostly Sunny10%54°
  9. WedOct 28 Partly cloudy Partly cloudy33°51°
  10. ThuOct 29 Cloudy Cloudy35°55°

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

Radar

Full map
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Weather news in Michigan

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Air quality

26
Good
Ozone

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

Forecast

  • WedModerate
  • ThuModerate
  • FriModerate

Bay Area-Thumb Area, 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 7:58 AM
Sunset 6:44 PM
Daylight 10 h 46 min (−2 min 50 s tomorrow)
Waxing Gibbous · 75% lit
Moonrise 4:32 PM Moonset 2:49 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low58° / 40°
Record high85° (1953)
Record low20° (1952)
Wettest1.10 in (1933)
Month to date1.54 in (normal 1.90 in)

Saginaw Area, records since 1912. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in DTX, issued 2 hrs ago

Key Messages

- Areas of fog tonight.

- Mild and dry through the week.

Dtw Threshold Probabilities

* Low for cigs/vsby to fall below 200ft and/or 1/2SM late tonight.

Prev Discussion

Issued at 338 PM EDT Tue Oct 20 2026

DISCUSSION...

A blocking pattern will result in surface high pressure and ridging being entrenched for most of this week across the Great Lakes yielding quiet weather conditions.

Surface high pressure slides into Quebec with a light east- southeasterly wind component prevailing into tonight. A similar set up tonight compared to last night with favorable radiational cooling conditions. The lingering lake moisture and a little more notable moisture influx off Lake Erie should bring potential again for fog development tonight. It is difficult to pin down where exactly greater coverage of patchy dense fog may develop, but models suggest greater potential exists for a broader area across southeast Michigan to be impacted by some coverage of fog by tomorrow morning.

No major swings in the thermal profiles for the week with persistence of a warmer airmass that brings temperatures that are a few degrees above climatological norms. Afternoon highs will be mainly in the 60s with overnight lows ranging from the mid-upper 30s to mid 40s.

The northern stream across central Canada will send a front into the region that will weaken and stall out as it moves into the Great Lakes tomorrow while longwave ridge amplification ramps back up ensuring. Lack of any deeper moisture will allow dry and around or slightly above normal warmth into the weekend. High pressure centered over eastern Canada will offer potential for slightly cooler temperatures Friday down to around 60 with the northerly flow becoming established for the day. Temperatures quickly recover as thermal ridge builds back into the Great Lakes for the weekend. The next indication of a pattern change is next week as long range ensemble members point toward a stronger Canadian wave that will break down this blocking pattern and open up the door to our next chance a precipitation and cooler temperatures.

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 4Conservative index and reflects what the press published. Terms of use.