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Tecumseh, MI Weather
Current conditions
Observed at Adrian, Lenawee County Airport · 50 min ago
Forecast
10-day-
Today
Sunny, with a high near 69. East northeast wind around 6 mph.
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Tonight
Partly cloudy. Low around 42, with temperatures rising to around 44 overnight. East northeast wind around 5 mph.
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Wednesday
Areas of fog before 9am. Mostly sunny, with a high near 68. Northeast wind around 2 mph.
National Weather Service forecast updated 6 hrs ago.
Hourly
Hourly forecast- Now69°
- 4 PM69°
- 5 PM69°
- 6 PM66°
- 7 PM60°
- 8 PM56°
- 9 PM53°
- 10 PM51°
- 11 PM50°
- Wed12 AM49°
- 1 AM47°
- 2 AM46°
- 3 AM46°
- 4 AM45°
- 5 AM44°
- 6 AM43°
- 7 AM43°
- 8 AM42°
- 9 AM45°
- 10 AM51°
- 11 AM56°
- 12 PM60°
- 1 PM63°
- 2 PM66°
10-day forecast
Details- TodayOct 20Sunny42°69°
- WedOct 21Areas Of Fog then Mostly Sunny44°68°
- ThuOct 22Sunny40°70°
- FriOct 23Sunny38°63°
- SatOct 24Sunny42°65°
- SunOct 25Mostly Sunny46°69°
- MonOct 26Mostly Sunny13%43°66°
- TueOct 27Partly cloudy40°55°
- WedOct 28Cloudy40°53°
- ThuOct 29Partly cloudy42°58°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
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Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- TueModerate
- WedModerate
- ThuModerate
Jackson, MI reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyAdrian 2 Nne, records since 1887. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
Forecasters' discussion
From the National Weather Service office in DTX, issued 11 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 4Conservative index and reflects what the press published. Terms of use.