Algonac, MI Weather

Saint Clair County1:08 AM EDT42.62°N, 82.53°WElevation 581 ft

Current conditions

Mostly Clear
46°
Mostly Clear
Feels like 45°
High 63°·Low 40° tonight
WindENE 3 mph
Humidity87%
Dew point42°
Pressure30.33 inHg
Visibility10.0 mi
Cloud cover16%
UV index0 Low
Sunrise7:51 AM
Sunset6:40 PM

Observed at Selfridge Air National Guard Base · 1 hr ago

Forecast

10-day

  • Overnight

    Mostly clear, with a low around 40. East wind around 2 mph.

  • Wednesday

    Patchy fog before 9am. Sunny, with a high near 63. East wind around 2 mph.

  • Wednesday Night

    Mostly clear, with a low around 44. Northwest wind around 1 mph.

National Weather Service forecast updated 8 hrs ago.

Hourly

Hourly forecast
  1. Now Mostly Clear 44°
  2. 2 AM Mostly Clear 43°
  3. 3 AM Mostly Clear 42°
  4. 4 AM Mostly Clear 41°
  5. 5 AM Partly Cloudy 40°
  6. 6 AM Patchy Fog 40°
  7. 7 AM Patchy Fog 40°
  8. 8 AM Patchy Fog 40°
  9. 9 AM Sunny 44°
  10. 10 AM Sunny 50°
  11. 11 AM Sunny 55°
  12. 12 PM Sunny 58°
  13. 1 PM Sunny 61°
  14. 2 PM Sunny 62°
  15. 3 PM Sunny 63°
  16. 4 PM Sunny 63°
  17. 5 PM Sunny 63°
  18. 6 PM Clear 61°
  19. 7 PM Clear 58°
  20. 8 PM Clear 53°
  21. 9 PM Clear 51°
  22. 10 PM Mostly Clear 50°
  23. 11 PM Mostly Clear 49°
  24. Thu12 AM Partly Cloudy 48°

10-day forecast

Details
  1. TonightOct 20 Mostly Clear Mostly Clear40°
  2. TodayOct 21 Patchy Fog then Sunny Patchy Fog then Sunny44°63°
  3. ThuOct 22 Sunny Sunny39°65°
  4. FriOct 23 Sunny Sunny41°61°
  5. SatOct 24 Sunny Sunny48°63°
  6. SunOct 25 Mostly Sunny Mostly Sunny49°66°
  7. MonOct 26 Partly Sunny Partly Sunny11%44°63°
  8. TueOct 27 Partly Sunny Partly Sunny11%56°
  9. WedOct 28 Cloudy Cloudy0.06 in42°50°
  10. ThuOct 29 Partly cloudy Partly cloudy38°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
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Weather news in Michigan

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Air quality

69
Moderate
Coarse particles (PM10)

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

Forecast

  • WedModerate
  • ThuModerate
  • FriModerate

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 7:51 AM
Sunset 6:40 PM
Daylight 10 h 49 min (−2 min 44 s tomorrow)
Waxing Gibbous · 74% lit
Moonrise 4:25 PM Moonset 2:45 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low58° / 41°
Record high83° (1920)
Record low23° (1952)
Wettest0.97 in (1929)
Month to date1.87 in (normal 1.81 in)

Mt. Clemens Ang Base, records since 1896. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in DTX, issued 1 hr 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.