Dense Fog Advisory
Ends in 35 min
When
Until 11 AM EDT this morning.
Where
Portions of central, south central, southwest, and west central Michigan.
Issued for this forecast zone · National Weather Service Grand Rapids 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: Osceola; Clare; Newaygo; Mecosta; Isabella; Montcalm; Gratiot; Kent; Ionia; Clinton; Allegan; Barry; Eaton; Ingham; Van Buren; Kalamazoo; Calhoun; Jackson
See it on weather.gov (opens in a new tab)

Observed 10:05 AM EDT at KLAN

DeWitt, MI weather

Foggy and 45°7°, 10°6° warmer than a typical Oct 24.

Forecasts agree

Now 45°7°

Fog

Wind: Calm; Up to 5 mph8 km/h through 10 PM
Visibility (notable): 0.2 mi0.3 km; Dense fog
Dew point: 45°7°; Comfortable
Humidity: 100%; Air 45°7°, dew point 45°7° · fog or dew likely
UV index: 1Low; Moderate 1–4 PM · peak 3
Air quality: 49Good; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.49 inHg1033 hPa; Rising slowly · +0.02 inHg+0.8 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (44°7° then, 45°7° now)

Good hours for

Fog until 11 AM
Above 60°16° today by 1 PM
High 67°19° today at 5 PM
Below 60°16° tonight after 8 PM
Low 44°7° tomorrow at 7 AM

This morningUp to 55°13° by 11 AM · Mostly cloudy
This afternoonUp to 67°19° by 5 PM · Partly cloudy
TonightDown to 45°7° by 4 AM · Clear
Tomorrow morningUp to 59°15° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 70°21° by 4 PM · Mostly cloudy
Tomorrow nightDown to 48°9° by 4 AM · Mostly cloudy
Monday morningUp to 50°10° by 9 AM · Mostly 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 10a	Fog	50°10° (likely 48°9° to 50°10°)	49°9°	0%	3 mph5 km/h from SSE, gusts 10 mph15 km/h	96%	73%	1
Sat 11a	Cloudy	55°13° (likely 51°11° to 55°13°)	55°13°	0%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	83%	51%	1
Sat 12p	Partly sunny	59°15° (likely 55°13° to 59°15°)	59°15°	0%	5 mph8 km/h from SSE, gusts 10 mph16 km/h	72%	31%	2
Sat 1p	Partly sunny	63°17° (likely 59°15° to 63°17°)	63°17°	0%	5 mph8 km/h from SSE, gusts 9 mph15 km/h	60%	21%	3
Sat 2p	Partly sunny	65°18° (likely 62°17° to 65°18°)	65°18°	0%	5 mph8 km/h from SSE, gusts 8 mph12 km/h	52%	27%	3
Sat 3p	Partly sunny	66°19° (likely 64°18° to 66°19°)	66°19°	0%	5 mph8 km/h from SSE, gusts 8 mph13 km/h	50%	27%	3
Sat 4p	Cloudy	66°19° (likely 64°18° to 66°19°)	66°19°	0%	3 mph5 km/h from SSE, gusts 7 mph12 km/h	48%	55%	2
Sat 5p	Cloudy	67°19° (likely 63°17° to 67°19°)	67°19°	0%	3 mph5 km/h from S, gusts 7 mph11 km/h	45%	58%	1
Sat 6p	Sunny	65°18° (likely 60°16° to 65°18°)	65°18°	0%	3 mph5 km/h from SSE, gusts 7 mph11 km/h	48%	16%	0
Sat 7p	Partly cloudy	62°17° (likely 55°13° to 62°17°)	62°17°	0%	3 mph5 km/h from SE, gusts 8 mph13 km/h	54%	46%	0
Sat 8p	Partly cloudy	57°14° (likely 53°12° to 57°14°)	57°14°	0%	3 mph5 km/h from SSE, gusts 9 mph15 km/h	64%	37%	0
Sat 9p	Clear	53°12° (likely 51°11° to 53°12°)	53°12°	0%	3 mph5 km/h from SSE, gusts 10 mph16 km/h	74%	5%	0
Sat 10p	Clear	51°11° (likely 49°9° to 52°11°)	51°11°	0%	5 mph8 km/h from SSE, gusts 11 mph18 km/h	80%	1%	0
Sat 11p	Clear	50°10° (likely 48°9° to 51°11°)	48°9°	0%	5 mph8 km/h from S, gusts 12 mph19 km/h	80%	3%	0
Sun 12a	Clear	48°9° (likely 47°8° to 50°10°)	46°8°	0%	5 mph8 km/h from S, gusts 11 mph18 km/h	86%	13%	0
Sun 1a	Clear	48°9° (likely 45°7° to 49°9°)	46°8°	0%	5 mph8 km/h from S, gusts 11 mph18 km/h	86%	2%	0
Sun 2a	Clear	47°8° (likely 44°7° to 48°9°)	45°7°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	89%	1%	0
Sun 3a	Clear	46°8° (likely 44°7° to 47°8°)	44°7°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	89%	2%	0
Sun 4a	Clear	45°7° (likely 44°7° to 46°8°)	43°6°	0%	5 mph8 km/h from S, gusts 11 mph18 km/h	93%	17%	0
Sun 5a	Partly cloudy	45°7° (likely 44°7° to 46°8°)	43°6°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	93%	23%	0
Sun 6a	Mostly clear	45°7° (likely 43°6° to 46°8°)	43°6°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	93%	28%	0
Sun 7a	Mostly cloudy	44°7° (likely 43°6° to 46°8°)	41°5°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	96%	52%	0
Sun 8a	Mostly cloudy	45°7° (likely 43°6° to 46°8°)	43°6°	0%	5 mph8 km/h from S, gusts 11 mph18 km/h	93%	68%	0
Sun 9a	Cloudy	47°8° (likely 45°7° to 48°9°)	44°7°	0%	6 mph10 km/h from SSW, gusts 11 mph18 km/h	93%	78%	0
Sun 10a	Cloudy	54°12° (likely 51°11° to 54°12°)	54°12°	0%	6 mph10 km/h from SSW, gusts 12 mph20 km/h	80%	75%	1
Sun 11a	Cloudy	59°15° (likely 56°13° to 59°15°)	59°15°	0%	7 mph11 km/h from SSW, gusts 14 mph22 km/h	67%	79%	2
Sun 12p	Cloudy	63°17° (likely 60°16° to 63°17°)	63°17°	0%	8 mph13 km/h from SSW, gusts 13 mph20 km/h	60%	81%	3
Sun 1p	Cloudy	67°19° (likely 64°18° to 67°19°)	67°19°	0%	8 mph13 km/h from SSW, gusts 12 mph19 km/h	50%	79%	3
Sun 2p	Cloudy	68°20° (likely 66°19° to 68°20°)	68°20°	0%	8 mph13 km/h from SSW, gusts 12 mph20 km/h	47%	89%	3
Sun 3p	Cloudy	69°21° (likely 66°19° to 69°21°)	69°21°	0%	8 mph13 km/h from SSW, gusts 12 mph19 km/h	47%	74%	3
Sun 4p	Mostly cloudy	70°21° (likely 67°19° to 70°21°)	70°21°	0%	7 mph11 km/h from SSW, gusts 12 mph20 km/h	44%	61%	2
Sun 5p	Mostly cloudy	69°21° (likely 65°18° to 69°21°)	69°21°	0%	7 mph11 km/h from SSW, gusts 10 mph15 km/h	44%	66%	1
Sun 6p	Partly sunny	68°20° (likely 62°17° to 68°20°)	68°20°	0%	6 mph10 km/h from SSW, gusts 9 mph15 km/h	47%	45%	1
Sun 7p	Mostly cloudy	64°18° (likely 58°14° to 64°18°)	64°18°	0%	5 mph8 km/h from SSW, gusts 8 mph13 km/h	52%	64%	0
Sun 8p	Cloudy	58°14° (likely 56°13° to 59°15°)	58°14°	0%	3 mph5 km/h from SSW, gusts 8 mph13 km/h	64%	61%	0
Sun 9p	Partly cloudy	56°13° (likely 54°12° to 57°14°)	56°13°	0%	3 mph5 km/h from SSW, gusts 8 mph14 km/h	69%	66%	0
Sun 10p	Partly cloudy	54°12° (likely 53°12° to 55°13°)	54°12°	0%	3 mph5 km/h from SSW, gusts 9 mph15 km/h	74%	56%	0
Sun 11p	Partly cloudy	53°12° (likely 52°11° to 54°12°)	53°12°	0%	2 mph3 km/h from SSW, gusts 9 mph15 km/h	77%	77%	0
Mon 12a	Partly cloudy	52°11° (likely 51°11° to 54°12°)	52°11°	0%	2 mph3 km/h from SSW, gusts 9 mph14 km/h	80%	62%	0
Mon 1a	Partly cloudy	51°11° (likely 50°10° to 52°11°)	51°11°	0%	2 mph3 km/h from SW, gusts 9 mph14 km/h	80%	64%	0
Mon 2a	Partly cloudy	50°10° (likely 49°9° to 52°11°)	50°10°	0%	2 mph3 km/h from SW, gusts 6 mph10 km/h	83%	63%	0
Mon 3a	Partly cloudy	49°9° (likely 49°9° to 50°10°)	49°9°	0%	2 mph3 km/h from SW, gusts 6 mph9 km/h	86%	57%	0
Mon 4a	Partly cloudy	48°9° (likely 48°9° to 49°9°)	48°9°	0%	1 mph2 km/h from WSW, gusts 6 mph10 km/h	89%	54%	0
Mon 5a	Cloudy	48°9° (likely 47°8° to 49°9°)	48°9°	0%	1 mph2 km/h from WSW, gusts 9 mph14 km/h	89%	59%	0
Mon 6a	Cloudy	46°8° (likely 46°8° to 49°9°)	46°8°	0%	1 mph2 km/h from W, gusts 9 mph15 km/h	96%	68%	0
Mon 7a	Cloudy	46°8° (likely 45°7° to 50°10°)	46°8°	0%	1 mph2 km/h from NW, gusts 8 mph13 km/h	96%	77%	0
Mon 8a	Cloudy	46°8° (likely 45°7° to 50°10°)	46°8°	0%	1 mph2 km/h from NNW, gusts 7 mph12 km/h	96%	79%	0
Mon 9a	Cloudy	50°10° (likely 46°8° to 53°12°)	50°10°	0%	2 mph3 km/h from N, gusts 6 mph10 km/h	86%	79%	0

Days ahead

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

Today, Oct 24. Fog. High 67°19°, low 43°6°. Typical 57°14° / 39°4°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 55°13°
  Dry
2. Afternoon
  noon–6 PM
  Partly sunny, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Official NWS forecast
Today: Areas of fog before 11am. Mostly sunny, with a high near 67. South southeast wind around 5 mph.
Tonight: Partly cloudy. Low around 43, with temperatures rising to around 45 overnight. South southeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
64°18°–67°19°
Low, likely
41°5°–44°7°
Typical high / low
57°14° / 39°4°
Wind
7 mph12 km/h, gusts 15 mph25 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 70°21°, low 46°8°. Typical 56°13° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 45°7°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 58°14°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 48°9°
  Dry
Official NWS forecast
Day: Partly sunny, with a high near 70. South southwest wind 5 to 8 mph.
Night: Partly cloudy, with a low around 46. Southwest wind 1 to 6 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
67°19°–70°21°
Low, likely
43°6°–46°8°
Typical high / low
56°13° / 38°3°
Wind
10 mph16 km/h, gusts 17 mph28 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 63°17°, low 40°4°. Typical 56°13° / 38°3°. Dry. Mostly agree. Best day outdoors this week.
1. Morning
  6 AM–noon
  Cloudy, 46°8°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 63°17°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 53°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 45°7°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 63. North northwest wind 1 to 7 mph.
Night: Mostly cloudy, with a low around 40.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
Best day outdoors this week: the one dry, mild day the forecasts agree on (high 63°17°).
High, likely
60°16°–64°18°
Low, likely
40°4°–48°9°
Typical high / low
56°13° / 38°3°
Wind
11 mph17 km/h, gusts 19 mph31 km/h
UV peak
3
Tuesday, Oct 27. Cloudy. High 59°15°, low 43°6°. Typical 56°13° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 44°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 61°16°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 54°12°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 59.
Night: Mostly cloudy, with a low around 43.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
57°14°–66°19°
Low, likely
41°5°–46°8°
Typical high / low
56°13° / 38°3°
Wind
13 mph20 km/h, gusts 22 mph35 km/h
UV peak
3
Wednesday, Oct 28. Cloudy. High 69°21°, low 50°10°. Typical 55°13° / 38°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 60°15°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 56°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 69.
Night: A slight chance of rain showers after 8pm. Partly cloudy, with a low around 50.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–72°22°
Low, likely
46°8°–53°12°
Typical high / low
55°13° / 38°3°
Wind
13 mph20 km/h, gusts 23 mph37 km/h
UV peak
3
Thursday, Oct 29. Partly sunny. High 68°20°, low 44°7°. Typical 55°13° / 37°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Mostly sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers before 8am. Mostly sunny, with a high near 68.
Night: Partly cloudy, with a low around 44.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
66°19°–73°23°
Low, likely
44°7°–56°13°
Typical high / low
55°13° / 37°3°
Wind
15 mph24 km/h, gusts 29 mph47 km/h
UV peak
3
Friday, Oct 30. Partly sunny. High 65°18°, low 44°7°. Typical 54°12° / 37°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Sunny, 47°8°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 55°13°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 50°10°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 65.
Night: Mostly cloudy, with a low around 44.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
59°15°–73°23°
Low, likely
38°3°–55°13°
Typical high / low
54°12° / 37°3°
Wind
10 mph16 km/h, gusts 23 mph36 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 67°19°, low 51°11°. Typical 54°12° / 37°3°. Rain 0.03 in0.8 mm, 20% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 49°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  20% chance
4. Overnight
  midnight–6 AM
  Drizzle, 56°13°
  40% chance
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
58°14°–74°23°
Low, likely
38°3°–56°13°
Typical high / low
54°12° / 37°3°
Wind
12 mph20 km/h, gusts 24 mph38 km/h
UV peak
3
Sunday, Nov 1. Rain. High 68°20°, low 55°13°. Typical 53°12° / 36°2°. Rain 0.36 in9.1 mm, 50% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 55°13°
  50% chance · 0.05 in1.1 mm
2. Afternoon
  noon–6 PM
  Cloudy, 67°19°
  50% chance · 0.06 in1.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 61°16°
  40% chance · 0.3 in7.6 mm
4. Overnight
  midnight–6 AM
  Drizzle, 58°15°
  40% chance · 0.15 in3.7 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
63°17°–73°23°
Low, likely
48°9°–60°16°
Typical high / low
53°12° / 36°2°
Wind
23 mph36 km/h, gusts 37 mph59 km/h
UV peak
2
Monday, Nov 2. Rain. High 61°16°, low 53°12°. Typical 53°12° / 36°2°. Rain 0.44 in11 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 59°15°
  40% chance · 0.06 in1.6 mm
2. Afternoon
  noon–6 PM
  Drizzle, 63°17°
  30% chance · 0.22 in5.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 57°14°
  30% chance · 0.21 in5.4 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
57°14°–67°19°
Low, likely
49°9°–60°16°
Typical high / low
53°12° / 36°2°
Wind
18 mph29 km/h, gusts 37 mph60 km/h

10 days15 days30 days

The outlook

Today
Dry, high 67°, low 43°.
Tomorrow
Dry, high 70°, low 46°, warming up.
Monday
Dry, high 63°, low 40°, cooling off.
Rest of week
Highs 59–69°; chance of precipitation on Sunday, Monday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (GRR) (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

Grand River at Lansing

6.3 mi

Below flood stage

Level: 2.4 ft
Flow: 220 cfs

Reading from Sat 8 AM · NWS gauge page

Looking Glass River near Eagle

8.9 mi

Below flood stage

Level: 2.6 ft
Flow: 32 cfs

Reading from Sat 7:45 AM · NWS gauge page

Red Cedar River at East Lansing

9.4 mi

Below flood stage

Level: 3.4 ft
Flow: 80 cfs

Reading from Sat 8:30 AM · NWS gauge page

Grand River at Grand Ledge

10 mi

Below flood stage

Level: 5.3 ft
Flow: 739 cfs

Reading from Sat 7 AM · NWS gauge page

For your home

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

Heating this week

About 84% less heating than a typical week.

This week 20Typical 128

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F: 11
h below 17°F: 0
h below 5°F: 0

47, 17 and 5°F are the test points heat pumps are rated at.

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 1:00 PM–7:00 PM

Good stretch to open the windows.

Is this typical?

Lansing Capital City Airport · official normals 1991–2020 · records 1863–2026

Oct 24, today vs a typical year

Today’s expected high is 10°6° warmer than typical.

Last 7 days vs normal

On average 4°2° warmer than normal (daily mean temperature).

±0°SunOct 18
+3°+2°MonOct 19
+3°+2°TueOct 20
+5°+3°WedOct 21
+6°+3°ThuOct 22
+6°+3°FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 39 min; Losing 2 min 44 s a day; shortest Dec 21, 1 h 38 min less
Golden hour: 6:02–6:59 PM; Morning 7:44–8:42 AM
Blue hour: 6:59–7:10 PM; Morning 7:33–7:44 AM; first light 7:33 AM

Stars tonight? Fair

Mostly clear 9 PM–6 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

97% lit · growing

Today: sets 6:14 AM · rises 5:39 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from DeWitt. A level horizon.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

DeWitt, MI weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Grand River at Lansing

Looking Glass River near Eagle

Red Cedar River at East Lansing

Grand River at Grand Ledge

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? Fair

Moon