Dense Fog Advisory
Ends in 4 h 35 min
When
Until 10 AM EDT /9 AM CDT/ this morning.
Where
Portions of northern Indiana and southwest Michigan.
Issued for this forecast zone · National Weather Service Northern Indiana
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: Marshall; Fulton; Miami; Grant; Blackford; Jay; Northern La Porte; Eastern St. Joseph; Western St. Joseph; Cass; Northern Berrien; Southern Berrien
See it on weather.gov (opens in a new tab)

Observed 4:55 AM EDT at KMZZ

Roll, IN weather

Clear and 41°5°, 10°6° warmer than a typical Oct 24.

Mostly agree

Now 41°5°

Clear

Wind: Calm; Light through 5 PM
Dew point: 38°3°; Comfortable
Humidity: 91%; Air 41°5°, dew point 38°3° · fog or dew likely
UV index: 0Low; Moderate 12–5 PM · peak 4
Pressure: 30.38 inHg1029 hPa; Rising slowly · +0.02 inHg+0.6 hPa in 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

4°2° warmer than this time yesterday (36°2° then, 41°5° now)

Good hours for

Low 42°6° today at 7 AM
Above 60°16° today by noon
High 70°21° today at 5 PM
Below 60°16° tonight after 9 PM

This morningUp to 57°14° by 11 AM · Clear
This afternoonUp to 70°21° by 5 PM · Mostly cloudy
TonightDown to 45°7° by 5 AM · Partly cloudy
Tomorrow morningUp to 60°16° by 11 AM · Partly cloudy
Tomorrow afternoonUp to 72°22° by 4 PM · Mostly cloudy
Tomorrow nightDown to 48°9° by 4 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 5a	Clear	43°6° (likely 41°5° to 45°7°)	43°6°	0%	0 mph0 km/h, gusts 9 mph14 km/h	96%	4%	0
Sat 6a	Clear	43°6° (likely 40°4° to 44°7°)	43°6°	0%	0 mph0 km/h, gusts 8 mph13 km/h	96%	10%	0
Sat 7a	Clear	42°6° (likely 40°4° to 43°6°)	42°6°	0%	0 mph0 km/h, gusts 9 mph15 km/h	96%	10%	0
Sat 8a	Sunny	42°6° (likely 39°4° to 43°6°)	42°6°	0%	0 mph0 km/h, gusts 10 mph15 km/h	96%	11%	0
Sat 9a	Mostly sunny	44°7° (likely 41°5° to 46°8°)	44°7°	0%	0 mph0 km/h, gusts 8 mph13 km/h	96%	22%	0
Sat 10a	Sunny	52°11° (likely 46°8° to 52°11°)	52°11°	0%	0 mph0 km/h, gusts 7 mph12 km/h	77%	13%	1
Sat 11a	Sunny	57°14° (likely 54°12° to 58°14°)	57°14°	0%	0 mph0 km/h, gusts 7 mph12 km/h	67%	16%	2
Sat 12p	Partly sunny	62°17° (likely 60°16° to 64°18°)	62°17°	0%	0 mph0 km/h, gusts 8 mph12 km/h	56%	27%	3
Sat 1p	Cloudy	65°18° (likely 64°18° to 67°19°)	65°18°	0%	0 mph0 km/h, gusts 7 mph11 km/h	50%	60%	4
Sat 2p	Cloudy	68°20° (likely 67°19° to 69°21°)	68°20°	0%	0 mph0 km/h, gusts 7 mph11 km/h	45%	60%	4
Sat 3p	Cloudy	69°21° (likely 68°20° to 70°21°)	69°21°	0%	0 mph0 km/h, gusts 7 mph11 km/h	42%	62%	4
Sat 4p	Cloudy	69°21° (likely 68°20° to 71°22°)	69°21°	0%	0 mph0 km/h, gusts 7 mph11 km/h	42%	78%	3
Sat 5p	Cloudy	70°21° (likely 67°19° to 70°21°)	70°21°	0%	0 mph0 km/h, gusts 7 mph11 km/h	39%	79%	2
Sat 6p	Partly sunny	68°20° (likely 64°18° to 69°21°)	68°20°	0%	0 mph0 km/h, gusts 7 mph11 km/h	43%	75%	1
Sat 7p	Cloudy	65°18° (likely 59°15° to 65°18°)	65°18°	0%	0 mph0 km/h, gusts 7 mph10 km/h	48%	71%	0
Sat 8p	Mostly clear	60°16° (likely 56°13° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 8 mph12 km/h	60%	64%	0
Sat 9p	Cloudy	54°12° (likely 52°11° to 56°13°)	54°12°	0%	0 mph0 km/h, gusts 7 mph12 km/h	74%	68%	0
Sat 10p	Cloudy	52°11° (likely 52°11° to 54°12°)	52°11°	0%	0 mph0 km/h, gusts 8 mph12 km/h	77%	70%	0
Sat 11p	Partly cloudy	51°11° (likely 50°10° to 53°12°)	51°11°	0%	0 mph0 km/h, gusts 7 mph12 km/h	80%	50%	0
Sun 12a	Mostly clear	50°10° (likely 49°9° to 51°11°)	50°10°	0%	0 mph0 km/h, gusts 8 mph13 km/h	83%	41%	0
Sun 1a	Mostly clear	49°9° (likely 47°8° to 50°10°)	49°9°	0%	0 mph0 km/h, gusts 9 mph14 km/h	83%	17%	0
Sun 2a	Mostly clear	48°9° (likely 46°8° to 50°10°)	48°9°	0%	0 mph0 km/h, gusts 9 mph15 km/h	86%	25%	0
Sun 3a	Clear	47°8° (likely 45°7° to 49°9°)	47°8°	0%	0 mph0 km/h, gusts 10 mph16 km/h	86%	3%	0
Sun 4a	Clear	46°8° (likely 44°7° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 11 mph18 km/h	86%	9%	0
Sun 5a	Mostly clear	45°7° (likely 44°7° to 47°8°)	45°7°	0%	0 mph0 km/h, gusts 11 mph18 km/h	89%	19%	0
Sun 6a	Mostly clear	44°7° (likely 43°6° to 46°8°)	44°7°	0%	0 mph0 km/h, gusts 10 mph17 km/h	89%	35%	0
Sun 7a	Clear	43°6° (likely 42°6° to 44°7°)	43°6°	0%	0 mph0 km/h, gusts 9 mph15 km/h	93%	10%	0
Sun 8a	Mostly sunny	43°6° (likely 41°5° to 45°7°)	43°6°	0%	0 mph0 km/h, gusts 9 mph14 km/h	93%	51%	0
Sun 9a	Cloudy	46°8° (likely 43°6° to 48°9°)	46°8°	0%	0 mph0 km/h, gusts 9 mph14 km/h	93%	61%	0
Sun 10a	Mostly sunny	54°12° (likely 51°11° to 54°12°)	54°12°	0%	0 mph0 km/h, gusts 9 mph14 km/h	80%	57%	1
Sun 11a	Mostly sunny	60°16° (likely 59°15° to 60°16°)	60°16°	0%	0 mph0 km/h, gusts 9 mph15 km/h	67%	48%	2
Sun 12p	Mostly sunny	65°18° (likely 64°18° to 66°19°)	65°18°	0%	0 mph0 km/h, gusts 7 mph12 km/h	54%	58%	3
Sun 1p	Partly sunny	68°20° (likely 67°19° to 70°21°)	68°20°	0%	0 mph0 km/h, gusts 6 mph9 km/h	47%	59%	4
Sun 2p	Cloudy	70°21° (likely 69°21° to 72°22°)	70°21°	0%	0 mph0 km/h, gusts 6 mph10 km/h	42%	78%	4
Sun 3p	Cloudy	71°22° (likely 70°21° to 73°23°)	71°22°	0%	0 mph0 km/h, gusts 6 mph10 km/h	41%	61%	4
Sun 4p	Cloudy	72°22° (likely 70°21° to 73°23°)	72°22°	0%	0 mph0 km/h, gusts 6 mph10 km/h	38%	61%	3
Sun 5p	Cloudy	72°22° (likely 69°21° to 72°22°)	72°22°	0%	0 mph0 km/h, gusts 6 mph10 km/h	38%	63%	2
Sun 6p	Cloudy	70°21° (likely 66°19° to 71°22°)	70°21°	0%	0 mph0 km/h, gusts 6 mph9 km/h	44%	65%	1
Sun 7p	Partly cloudy	67°19° (likely 62°17° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 5 mph8 km/h	47%	57%	0
Sun 8p	Partly cloudy	62°17° (likely 59°15° to 62°17°)	62°17°	0%	0 mph0 km/h, gusts 5 mph8 km/h	56%	57%	0
Sun 9p	Partly cloudy	56°13° (likely 56°13° to 60°16°)	56°13°	0%	0 mph0 km/h, gusts 7 mph11 km/h	66%	60%	0
Sun 10p	Partly cloudy	53°12° (likely 53°12° to 57°14°)	53°12°	0%	0 mph0 km/h, gusts 8 mph13 km/h	74%	54%	0
Sun 11p	Cloudy	52°11° (likely 52°11° to 55°13°)	52°11°	0%	0 mph0 km/h, gusts 8 mph13 km/h	77%	58%	0
Mon 12a	Mostly clear	51°11° (likely 51°11° to 54°12°)	51°11°	0%	0 mph0 km/h, gusts 8 mph12 km/h	80%	38%	0
Mon 1a	Partly cloudy	50°10° (likely 49°9° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 7 mph12 km/h	80%	68%	0
Mon 2a	Partly cloudy	50°10° (likely 48°9° to 53°12°)	50°10°	0%	0 mph0 km/h, gusts 7 mph12 km/h	80%	59%	0
Mon 3a	Partly cloudy	49°9° (likely 47°8° to 55°13°)	49°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	62%	0
Mon 4a	Partly cloudy	48°9° (likely 46°8° to 54°12°)	48°9°	0%	0 mph0 km/h, gusts 5 mph8 km/h	83%	64%	0

Days ahead

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

Today, Oct 24. Fog. High 70°21°, low 42°6°. Typical 60°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly sunny, 42°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 45°7°
  Dry
Official NWS forecast
Today: Patchy fog before 11am. Mostly sunny, with a high near 70. Southeast wind around 0 mph.
Tonight: Mostly clear, with a low around 42. East wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
68°20°–71°22°
Low, likely
39°4°–43°6°
Typical high / low
60°16° / 39°4°
Wind
9 mph14 km/h, gusts 14 mph22 km/h
UV peak
4
Tomorrow, Oct 25. Cloudy. High 72°22°, low 45°7°. Typical 60°16° / 39°4°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 43°6°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 48°9°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 72. South wind around 0 mph.
Night: Partly cloudy, with a low around 45. South wind around 0 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–73°23°
Low, likely
41°5°–45°7°
Typical high / low
60°16° / 39°4°
Wind
7 mph12 km/h, gusts 17 mph28 km/h
UV peak
4
Monday, Oct 26. Partly sunny. High 73°23°, low 47°8°. Typical 60°16° / 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Mostly sunny, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 71°22°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Mostly clear, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 73.
Night: Mostly cloudy, with a low around 47.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–73°23°
Low, likely
45°7°–51°11°
Typical high / low
60°16° / 38°3°
Wind
7 mph11 km/h
UV peak
4
Tuesday, Oct 27. Cloudy. High 68°20°, low 48°9°. Typical 59°15° / 38°3°. Dry. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 48°9°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 69°21°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 68.
Night: Mostly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
67°19°–72°22°
Low, likely
44°7°–50°10°
Typical high / low
59°15° / 38°3°
Wind
10 mph15 km/h, gusts 20 mph33 km/h
UV peak
4
Wednesday, Oct 28. Cloudy. High 73°23°, low 51°11°. Typical 59°15° / 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 72°22°
  Dry
3. Evening
  6 PM–midnight
  Clear, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Clear, 54°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Partly sunny, with a high near 73.
Night: Mostly clear, with a low around 51.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
71°22°–73°23°
Low, likely
49°9°–53°12°
Typical high / low
59°15° / 38°3°
Wind
10 mph16 km/h, gusts 21 mph34 km/h
UV peak
4
Thursday, Oct 29. Mostly sunny. High 73°23°, low 46°8°. Typical 58°14° / 38°3°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Sunny, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 74°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 63°17°
  Dry
4. Overnight
  midnight–6 AM
  Partly cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Sunny, with a high near 73.
Night: Mostly clear, with a low around 46.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
73°23°–74°23°
Low, likely
46°8°–54°12°
Typical high / low
58°14° / 38°3°
Wind
12 mph19 km/h, gusts 24 mph38 km/h
UV peak
4
Friday, Oct 30. Cloudy. High 71°22°, low 51°11°. Typical 58°14° / 37°3°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Sunny, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 62°17°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°12°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 71.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
71°22°–75°24°
Low, likely
46°8°–56°13°
Typical high / low
58°14° / 37°3°
Wind
9 mph15 km/h, gusts 26 mph42 km/h
UV peak
3
Saturday, Oct 31. Cloudy. High 74°23°, low 55°13°. Typical 57°14° / 37°3°. Rain 0.02 in0.5 mm, 20% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 75°24°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 68°20°
  30% chance
4. Overnight
  midnight–6 AM
  Drizzle, 60°16°
  30% chance · 0.04 in0.9 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
71°22°–78°26°
Low, likely
50°10°–61°16°
Typical high / low
57°14° / 37°3°
Wind
11 mph18 km/h, gusts 17 mph27 km/h
UV peak
2
Sunday, Nov 1. Drizzle. High 67°19°, low 60°16°. Typical 57°14° / 37°3°. Rain 0.33 in8.4 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 59°15°
  40% chance · 0.04 in1 mm
2. Afternoon
  noon–6 PM
  Drizzle, 66°19°
  40% chance · 0.06 in1.5 mm
3. Evening
  6 PM–midnight
  Drizzle, 63°17°
  40% chance · 0.17 in4.2 mm
4. Overnight
  midnight–6 AM
  Drizzle, 61°16°
  40% chance · 0.03 in0.8 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
64°18°–71°22°
Low, likely
58°14°–61°16°
Typical high / low
57°14° / 37°3°
Wind
20 mph32 km/h, gusts 32 mph52 km/h
UV peak
1
Monday, Nov 2. Cloudy. High 66°19°, low 59°15°. Typical 56°13° / 36°2°. Rain 0.28 in7.1 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 61°16°
  40% chance · 0.07 in1.8 mm
2. Afternoon
  noon–6 PM
  Drizzle, 65°18°
  40% chance · 0.17 in4.4 mm
3. Evening
  6 PM–midnight
  Drizzle, 62°17°
  30% chance · 0.28 in7.2 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
62°17°–70°21°
Low, likely
57°14°–63°17°
Typical high / low
56°13° / 36°2°
Wind
13 mph21 km/h, gusts 27 mph44 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 70°, low 42°.
Tomorrow
Dry, high 72°, low 45°.
Monday
Dry, high 73°, low 47°.
Rest of week
Highs 66–74°; chance of precipitation on Sunday.

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

Salamonie River at Portland

21 mi

Below flood stage

Level: 2.2 ft
Flow: 7 cfs

Forecast peak 2.1 ft Sat 8 AM

Reading from Sat 3:45 AM · NWS gauge page

Salamonie River near Warren

12 mi

Below flood stage

Level: 6.6 ft
Flow: 91 cfs

Reading from Sat 3:45 AM · NWS gauge page

Mississinewa River at Marion

14 mi

Below flood stage

Level: 1.1 ft
Flow: 86 cfs

Reading from Sat 3:45 AM · NWS gauge page

Wabash River at Bluffton

18 mi

Below flood stage

Level: 1.7 ft
Flow: 85 cfs

Reading from Sat 3:45 AM · NWS gauge page

For your home

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

Heating this week

About 83% less heating than a typical week.

This week 20Typical 115

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. About 2 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 38°F).

Open the windows?

Today, 12:00 PM–8:00 PM

Good stretch to open the windows (air quality forecast not available for part of this window).

Is this typical?

MARION 2 N · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

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

Last 7 days vs normal

On average 1°0° warmer than normal (daily mean temperature).

−7°−4°SunOct 18
−1°MonOct 19
+3°+2°TueOct 20
+4°+2°WedOct 21
—ThuOct 22
+5°+3°FriOct 23
—SatOct 24

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

Sun & moon

Sun

Daylight: 10 h 46 min; Losing 2 min 30 s a day; shortest Dec 21, 1 h 29 min less
Golden hour: 6:10–7:05 PM; Morning 7:45–8:40 AM
Blue hour: 7:05–7:16 PM; Morning 7:34–7:45 AM; first light 7:34 AM

Stars tonight? Good

Clear 5:25–7:34 AM; moon 96% lit, sets 6:15 AM.

Moon

Waxing gibbous

96% lit · growing

Today: sets 6:15 AM · rises 5:45 PM
Full moon: Oct 26
New moon: Nov 9

Looking west from Roll. 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

Roll, IN weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Salamonie River at Portland

Salamonie River near Warren

Mississinewa River at Marion

Wabash River at Bluffton

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