Dense Fog Advisory
Ends in 6 h 20 min
When
Until 10 AM EDT this morning.
Where
Huron, Lapeer, Lenawee, Monroe, Sanilac, St. Clair, Tuscola, and Washtenaw Counties.
Issued for this forecast zone · National Weather Service Detroit/Pontiac MI
What, impacts and precautionsHide details
What
Visibility one quarter mile or less in dense fog.
Impacts
Low visibility could make driving conditions hazardous.
Precautionary actions
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Areas: Huron; Tuscola; Sanilac; Lapeer; St. Clair; Washtenaw; Lenawee; Monroe
See it on weather.gov (opens in a new tab)

Observed 3:10 AM EDT at KYIP

Ypsilanti, MI weather

Foggy and 45°7°.

Mostly agree

Now 45°7°

Fog

Wind: 3 mph5 km/h; From the northeast. Light through 3 PM
Dew point: 43°6°; Comfortable · up to 52°11° by 11 AM
Humidity: 93%; Air 45°7°, dew point 43°6° · fog or dew likely
UV index: 0Low; Moderate 12–5 PM · peak 4
Air quality: 79Moderate; Main pollutant: PM2.5 (fine particles)
Pressure: 30.43 inHg1030 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

3°2° cooler than this time yesterday (45°7° then, 42°6° now)

Good hours for

Fog today 9–10 AM
Above 50°10° today by 10 AM
High 66°19° today at 4 PM
Fog tonight 3–9 AM
Fog tomorrow night from 2 AM

TonightNear 44°7° · Clear
This morningUp to 55°13° by 11 AM · Partly cloudy
This afternoonUp to 66°19° by 4 PM · Clear
TonightDown to 42°6° by 5 AM · Partly cloudy
Tomorrow morningUp to 57°14° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 69°21° by 4 PM · Mostly cloudy
Tomorrow nightDown to 49°9° by 1 AM · Partly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 3a	Clear	45°7° (likely 44°7° to 47°8°)	44°7°	0%	3 mph5 km/h from ENE, gusts 5 mph9 km/h	100%	8%	0
Sat 4a	Clear	44°7° (likely 43°6° to 46°8°)	44°7°	0%	2 mph3 km/h from ENE, gusts 6 mph10 km/h	100%	8%	0
Sat 5a	Clear	43°6° (likely 41°5° to 45°7°)	43°6°	0%	2 mph3 km/h from NE, gusts 7 mph11 km/h	100%	11%	0
Sat 6a	Clear	43°6° (likely 41°5° to 44°7°)	43°6°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	100%	8%	0
Sat 7a	Clear	43°6° (likely 40°4° to 44°7°)	43°6°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	98%	41%	0
Sat 8a	Sunny	43°6° (likely 40°4° to 43°6°)	43°6°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	97%	43%	0
Sat 9a	Fog	44°7° (likely 42°6° to 46°8°)	45°7°	0%	2 mph3 km/h from NE, gusts 6 mph10 km/h	100%	41%	0
Sat 10a	Partly sunny	50°10° (likely 46°8° to 50°10°)	50°10°	0%	3 mph5 km/h from ENE, gusts 7 mph11 km/h	100%	24%	1
Sat 11a	Partly sunny	55°13° (likely 48°9° to 55°13°)	55°13°	0%	3 mph5 km/h from ENE, gusts 8 mph12 km/h	91%	16%	2
Sat 12p	Partly sunny	59°15° (likely 54°12° to 59°15°)	59°15°	0%	3 mph5 km/h from E, gusts 8 mph13 km/h	78%	15%	3
Sat 1p	Sunny	62°17° (likely 60°16° to 62°17°)	63°17°	0%	3 mph5 km/h from ESE, gusts 8 mph13 km/h	68%	13%	4
Sat 2p	Sunny	64°18° (likely 62°17° to 64°18°)	64°18°	0%	3 mph5 km/h from SE, gusts 8 mph12 km/h	62%	11%	4
Sat 3p	Sunny	65°18° (likely 63°17° to 65°18°)	65°18°	0%	3 mph5 km/h from SSE, gusts 7 mph11 km/h	60%	9%	4
Sat 4p	Sunny	66°19° (likely 63°17° to 66°19°)	66°19°	0%	5 mph8 km/h from SSE, gusts 7 mph11 km/h	58%	44%	3
Sat 5p	Mostly sunny	65°18° (likely 63°17° to 65°18°)	65°18°	0%	6 mph10 km/h from SSE, gusts 8 mph12 km/h	57%	44%	2
Sat 6p	Sunny	64°18° (likely 59°15° to 64°18°)	64°18°	0%	5 mph8 km/h from SSE, gusts 8 mph13 km/h	61%	37%	1
Sat 7p	Clear	60°16° (likely 55°13° to 60°16°)	60°16°	0%	5 mph8 km/h from SE, gusts 8 mph13 km/h	70%	0%	0
Sat 8p	Clear	54°12° (likely 51°11° to 54°12°)	54°12°	0%	5 mph8 km/h from SE, gusts 9 mph14 km/h	86%	24%	0
Sat 9p	Mostly clear	51°11° (likely 49°9° to 51°11°)	50°10°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	95%	14%	0
Sat 10p	Mostly clear	49°9° (likely 48°9° to 50°10°)	48°9°	0%	3 mph5 km/h from SE, gusts 7 mph12 km/h	98%	45%	0
Sat 11p	Mostly clear	47°8° (likely 47°8° to 49°9°)	47°8°	0%	2 mph3 km/h from SE, gusts 6 mph10 km/h	100%	23%	0
Sun 12a	Clear	47°8° (likely 47°8° to 48°9°)	47°8°	0%	1 mph2 km/h from SSE, gusts 6 mph10 km/h	100%	8%	0
Sun 1a	Clear	46°8° (likely 46°8° to 49°9°)	46°8°	0%	1 mph2 km/h from SSE, gusts 4 mph6 km/h	100%	4%	0
Sun 2a	Clear	45°7° (likely 45°7° to 49°9°)	45°7°	0%	0 mph0 km/h, gusts 5 mph8 km/h	100%	16%	0
Sun 3a	Fog	44°7° (likely 44°7° to 48°9°)	44°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	55%	0
Sun 4a	Fog	44°7° (likely 43°6° to 47°8°)	44°7°	0%	0 mph0 km/h, gusts 4 mph7 km/h	100%	57%	0
Sun 5a	Fog	42°6° (likely 42°6° to 46°8°)	42°6°	0%	1 mph2 km/h from S, gusts 7 mph11 km/h	100%	76%	0
Sun 6a	Fog	42°6° (likely 41°5° to 45°7°)	42°6°	0%	1 mph2 km/h from SSW, gusts 5 mph9 km/h	100%	80%	0
Sun 7a	Fog	41°5° (likely 40°4° to 43°6°)	41°5°	0%	1 mph2 km/h from SW, gusts 8 mph12 km/h	100%	84%	0
Sun 8a	Fog	41°5° (likely 40°4° to 43°6°)	41°5°	0%	1 mph2 km/h from SSW, gusts 7 mph12 km/h	99%	71%	0
Sun 9a	Partly sunny	44°7° (likely 42°6° to 45°7°)	44°7°	0%	2 mph3 km/h from SSW, gusts 7 mph12 km/h	100%	61%	0
Sun 10a	Cloudy	51°11° (likely 49°9° to 51°11°)	51°11°	0%	3 mph5 km/h from SSW, gusts 7 mph12 km/h	89%	82%	1
Sun 11a	Cloudy	57°14° (likely 55°13° to 57°14°)	57°14°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	77%	69%	2
Sun 12p	Cloudy	61°16° (likely 59°15° to 61°16°)	61°16°	0%	5 mph8 km/h from SSW, gusts 10 mph16 km/h	67%	63%	3
Sun 1p	Mostly cloudy	65°18° (likely 63°17° to 65°18°)	65°18°	0%	6 mph10 km/h from SSW, gusts 10 mph16 km/h	57%	64%	4
Sun 2p	Cloudy	67°19° (likely 65°18° to 67°19°)	67°19°	0%	7 mph11 km/h from SSW, gusts 10 mph16 km/h	53%	75%	4
Sun 3p	Partly sunny	68°20° (likely 66°19° to 68°20°)	68°20°	0%	7 mph11 km/h from S, gusts 11 mph17 km/h	51%	71%	3
Sun 4p	Cloudy	69°21° (likely 66°19° to 69°21°)	69°21°	0%	7 mph11 km/h from S, gusts 11 mph18 km/h	50%	89%	2
Sun 5p	Cloudy	68°20° (likely 65°18° to 68°20°)	68°20°	0%	7 mph11 km/h from S, gusts 11 mph17 km/h	51%	67%	2
Sun 6p	Cloudy	66°19° (likely 63°17° to 66°19°)	66°19°	0%	6 mph10 km/h from S, gusts 9 mph15 km/h	55%	91%	1
Sun 7p	Partly cloudy	63°17° (likely 59°15° to 63°17°)	63°17°	0%	5 mph8 km/h from S, gusts 5 mph9 km/h	61%	57%	0
Sun 8p	Clear	57°14° (likely 55°13° to 58°14°)	57°14°	0%	3 mph5 km/h from S, gusts 5 mph8 km/h	72%	55%	0
Sun 9p	Partly cloudy	54°12° (likely 52°11° to 57°14°)	54°12°	0%	3 mph5 km/h from S, gusts 4 mph7 km/h	79%	76%	0
Sun 10p	Mostly clear	52°11° (likely 50°10° to 57°14°)	53°12°	0%	3 mph5 km/h from SSW, gusts 4 mph7 km/h	82%	50%	0
Sun 11p	Partly cloudy	51°11° (likely 49°9° to 57°14°)	51°11°	0%	2 mph3 km/h from SSW, gusts 4 mph6 km/h	83%	52%	0
Mon 12a	Partly cloudy	50°10° (likely 48°9° to 56°13°)	50°10°	0%	2 mph3 km/h from SW, gusts 4 mph6 km/h	84%	59%	0
Mon 1a	Partly cloudy	49°9° (likely 47°8° to 55°13°)	49°9°	0%	2 mph3 km/h from SW, gusts 4 mph6 km/h	85%	52%	0
Mon 2a	Fog	49°9° (likely 46°8° to 54°12°)	49°9°	0%	2 mph3 km/h from WSW, gusts 4 mph6 km/h	86%	41%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Fog. High 66°19°, low 42°6°. Typical 59°15° / 41°5°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Fog, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Fog, 42°6°
  Dry
Official NWS forecast
Today: Patchy fog before 9am. Mostly sunny, with a high near 66. East wind 2 to 6 mph.
Tonight: Patchy fog. Mostly clear, with a low around 42. Northeast wind around 3 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–66°19°
Low, likely
40°4°–43°6°
Typical high / low
59°15° / 41°5°
Wind
6 mph10 km/h, gusts 13 mph20 km/h
UV peak
4
Tomorrow, Oct 25. Fog. High 69°21°, low 44°7°. Typical 58°14° / 41°5°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Partly sunny, 41°5°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 47°8°
  Dry
Official NWS forecast
Day: Patchy fog before 9am. Partly sunny, with a high near 69. South southwest wind 1 to 7 mph.
Night: Patchy fog after 2am. Partly cloudy, with a low around 44. Southwest wind 2 to 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
67°19°–69°21°
Low, likely
40°4°–44°7°
Typical high / low
58°14° / 41°5°
Wind
7 mph12 km/h, gusts 14 mph22 km/h
UV peak
4
Monday, Oct 26. Cloudy. High 66°19°, low 41°5°. Typical 58°14° / 40°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Partly sunny, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 46°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Mostly sunny, with a high near 66.
Night: Mostly cloudy, with a low around 41.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–70°21°
Low, likely
41°5°–49°9°
Typical high / low
58°14° / 40°4°
Wind
9 mph15 km/h, gusts 17 mph28 km/h
UV peak
4
Tuesday, Oct 27. Mostly cloudy. High 60°16°, low 42°6°. Typical 57°14° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 59°15°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 51°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 48°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 60.
Night: Mostly cloudy, with a low around 42.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
55°13°–64°18°
Low, likely
42°6°–46°8°
Typical high / low
57°14° / 40°4°
Wind
9 mph15 km/h, gusts 17 mph28 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 67°19°, low 48°9°. Typical 57°14° / 40°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 67.
Night: A slight chance of rain after 2am. Partly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
64°18°–70°21°
Low, likely
46°8°–50°10°
Typical high / low
57°14° / 40°4°
Wind
9 mph15 km/h, gusts 20 mph32 km/h
UV peak
3
Thursday, Oct 29. Rain. High 70°21°, low 44°7°. Typical 56°13° / 40°4°. Rain 0.01 in0.3 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 47°8°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain before 8am. Mostly sunny, with a high near 70.
Night: Partly cloudy, with a low around 44.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
67°19°–73°23°
Low, likely
44°7°–53°12°
Typical high / low
56°13° / 40°4°
Wind
13 mph21 km/h, gusts 30 mph49 km/h
UV peak
3
Friday, Oct 30. Partly sunny. High 67°19°, low 46°8°. Typical 56°13° / 39°4°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 56°13°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 67.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
62°17°–74°23°
Low, likely
37°3°–54°12°
Typical high / low
56°13° / 39°4°
Wind
10 mph16 km/h, gusts 31 mph49 km/h
Saturday, Oct 31. Drizzle. High 67°19°, low 51°11°. Typical 56°13° / 39°4°. Rain 0.06 in1.5 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 49°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 66°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  20% chance
4. Overnight
  midnight–6 AM
  Showers, 53°12°
  30% chance · 0.09 in2.2 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–72°22°
Low, likely
46°8°–55°13°
Typical high / low
56°13° / 39°4°
Wind
11 mph17 km/h, gusts 19 mph31 km/h
UV peak
1
Sunday, Nov 1. Rain. High 67°19°, low 54°12°. Typical 55°13° / 39°4°. Rain 0.35 in8.9 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 53°12°
  30% chance · 0.06 in1.6 mm
2. Afternoon
  noon–6 PM
  Drizzle, 67°19°
  40% chance · 0.05 in1.1 mm
3. Evening
  6 PM–midnight
  Rain, 62°17°
  40% chance · 0.18 in4.5 mm
4. Overnight
  midnight–6 AM
  Cloudy, 59°15°
  40% chance · 0.14 in3.5 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–72°22°
Low, likely
49°9°–59°15°
Typical high / low
55°13° / 39°4°
Wind
18 mph29 km/h, gusts 32 mph51 km/h
UV peak
1
Monday, Nov 2. Cloudy. High 60°16°, low 48°9°. Typical 55°13° / 38°3°. Rain 0.33 in8.4 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Drizzle, 58°15°
  40% chance · 0.04 in1.1 mm
2. Afternoon
  noon–6 PM
  Drizzle, 58°15°
  30% chance · 0.1 in2.5 mm
3. Evening
  6 PM–midnight
  Cloudy, 49°9°
  30% chance · 0.08 in2.1 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
57°14°–62°17°
Low, likely
42°6°–51°11°
Typical high / low
55°13° / 38°3°
Wind
18 mph29 km/h, gusts 38 mph61 km/h
UV peak
1

10 days15 days30 days

The outlook

Today
Dry, high 66°, low 42°.
Tomorrow
Dry, high 69°, low 44°, warming up.
Monday
Dry, high 66°, low 41°, cooling off.
Rest of week
Highs 60–70°; chance of precipitation on Sunday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (DTX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Huron River at Ann Arbor

6.5 mi

Below flood stage

Level: 12.0 ft
Flow: 170 cfs

Reading from Sat 1:45 AM · NWS gauge page

Saline River below SALINE

11 mi

Level: 5.1 ft
Flow: 39 cfs

Reading from Sat 1 AM · NWS gauge page

Mill Creek near Dexter

15 mi

Below flood stage

Level: 6.0 ft
Flow: 50 cfs

Reading from Sat 1:45 AM · NWS gauge page

Ecorse Creek at Dearborn Hgts

17 mi

Below flood stage

Level: 2.3 ft
Flow: under 1 cfs

Reading from Sat 2 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 79% less heating than a typical week.

This week 24Typical 114

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 17
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at. About 4 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 43°F).

Open the windows?

Today, 1:00 PM–7:00 PM

Good stretch to open the windows.

Is this typical?

Detroit Metro Airport · official normals 1991–2020 · records 1874–2026

Oct 24, today vs a typical year

Today’s expected high is 7°4° warmer than typical.

Last 7 days vs normal

On average 3°1° warmer than normal (daily mean temperature).

−2°−1°SunOct 18
+1°MonOct 19
+4°+2°TueOct 20
+4°+2°WedOct 21
+7°+4°ThuOct 22
—FriOct 23
—SatOct 24

Ypsilanti weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 41 min; Losing 2 min 35 s a day; shortest Dec 21, 1 h 36 min less
Golden hour: 5:59–6:56 PM; Morning 7:40–8:36 AM
Blue hour: 6:56–7:07 PM; Morning 7:29–7:40 AM; first light 7:29 AM

Stars tonight? Good

Mostly clear 3:40–7 AM; moon 96% lit, sets 6:09 AM.

Moon

Waxing gibbous

96% lit · growing

Today: sets 6:09 AM · rises 5:36 PM
Full moon: Oct 26
New moon: Nov 9

Looking northwest from Ypsilanti. The highest point on the skyline is about 2,900 ft, 9 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

1 active weather alert

Dense Fog Advisory

Ypsilanti, MI weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Huron River at Ann Arbor

Saline River below SALINE

Mill Creek near Dexter

Ecorse Creek at Dearborn Hgts

For your home

Heating this week

Heat-pump hours, next 7 days

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Good

Moon