Cass River at Wahjamega
9.1 mi- Level
- 3.1 ft
- Flow
- 206 cfs
Reading from Sat 6:15 AM · NWS gauge page
1 active weather alert
Dense Fog Advisory
Ends in 2 h
- When
- Until 10 AM EDT this morning.
- Where
- Lapeer, Lenawee, Monroe, 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: Tuscola; Lapeer; Washtenaw; Lenawee; Monroe
See it on weather.gov (opens in a new tab)
Observed 6:35 AM EDT at KCFS
Mayville, MI weather
Foggy and 32°0°, 9°5° warmer than a typical Oct 24.
Today: low 41°5° (likely 37°3° to 41°5°), high 65°18° (likely 63°17° to 65°18°).
Now 32°0°
Fog
- Wind
- Calm
- Up to 5 mph8 km/h through 8 PM
- Visibility
- 0.8 mi1.3 km
- Fog · under 1 mi1.6 km
- Dew point
- 32°0°
- Dry · up to 40°4° by 9 AM (comfortable)
- Humidity
- 100%
- Air 32°0°, dew point 32°0° · frost likely
- UV index
- 0Low
- Moderate 12–5 PM · peak 4
- Air quality
- 16Good
- Ozone · tomorrow moderate
- Pressure
- 30.45 inHg1031 hPa
- Rising slowly · +0.02 inHg+0.8 hPa in 3 h
Next 2 hours
No precipitation expected in the next 2 hours.
From forecast models
Next 48 hours
Good hours for
This morningUp to 54°12° by 11 AM · Partly cloudy
This afternoonUp to 65°18° by 4 PM · Clear
TonightDown to 42°6° by 5 AM · Clear
Tomorrow morningUp to 58°14° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 69°21° by 4 PM · Mostly cloudy
Tomorrow nightDown to 48°9° by 5 AM · Partly cloudy
| Hour | Conditions | Temperature | Feels like | Precipitation | Wind | Humidity | Cloud cover | UV index |
|---|---|---|---|---|---|---|---|---|
| Sat 8a | Fog | 38°3° (likely 37°3° to 40°4°) | 38°3° | 0% | 2 mph3 km/h from SE, gusts 6 mph10 km/h | 97% | 48% | 0 |
| Sat 9a | Fog | 40°4° (likely 38°3° to 43°6°) | 38°3° | 0% | 3 mph5 km/h from SE, gusts 7 mph11 km/h | 100% | 40% | 0 |
| Sat 10a | Sunny | 48°9° (likely 43°6° to 49°9°) | 48°9° | 0% | 3 mph5 km/h from SSE, gusts 8 mph12 km/h | 89% | 23% | 1 |
| Sat 11a | Mostly sunny | 54°12° (likely 47°8° to 54°12°) | 54°12° | 0% | 3 mph5 km/h from SSE, gusts 7 mph12 km/h | 78% | 16% | 2 |
| Sat 12p | Sunny | 58°14° (likely 53°12° to 58°14°) | 58°14° | 0% | 5 mph8 km/h from SSE, gusts 6 mph10 km/h | 65% | 7% | 3 |
| Sat 1p | Sunny | 61°16° (likely 57°14° to 61°16°) | 61°16° | 0% | 5 mph8 km/h from SSE, gusts 6 mph10 km/h | 55% | 8% | 4 |
| Sat 2p | Sunny | 63°17° (likely 60°16° to 63°17°) | 63°17° | 0% | 5 mph8 km/h from SSE, gusts 6 mph9 km/h | 50% | 8% | 4 |
| Sat 3p | Sunny | 64°18° (likely 62°17° to 64°18°) | 64°18° | 0% | 5 mph8 km/h from SSE, gusts 5 mph9 km/h | 47% | 3% | 3 |
| Sat 4p | Sunny | 65°18° (likely 63°17° to 65°18°) | 65°18° | 0% | 5 mph8 km/h from SSE, gusts 6 mph9 km/h | 45% | 2% | 3 |
| Sat 5p | Sunny | 64°18° (likely 62°17° to 64°18°) | 65°18° | 0% | 5 mph8 km/h from SSE, gusts 6 mph9 km/h | 46% | 2% | 2 |
| Sat 6p | Sunny | 62°17° (likely 58°14° to 62°17°) | 62°17° | 0% | 3 mph5 km/h from SE, gusts 6 mph10 km/h | 51% | 42% | 1 |
| Sat 7p | Clear | 58°14° (likely 53°12° to 58°14°) | 58°14° | 0% | 5 mph8 km/h from SE, gusts 7 mph12 km/h | 60% | 30% | 0 |
| Sat 8p | Clear | 51°11° (likely 49°9° to 51°11°) | 49°9° | 0% | 5 mph8 km/h from SSE, gusts 9 mph15 km/h | 77% | 5% | 0 |
| Sat 9p | Clear | 49°9° (likely 47°8° to 49°9°) | 47°8° | 0% | 5 mph8 km/h from SSE, gusts 9 mph14 km/h | 83% | 40% | 0 |
| Sat 10p | Clear | 48°9° (likely 45°7° to 48°9°) | 46°8° | 0% | 5 mph8 km/h from SSE, gusts 10 mph16 km/h | 87% | 2% | 0 |
| Sat 11p | Clear | 47°8° (likely 43°6° to 47°8°) | 45°7° | 0% | 5 mph8 km/h from S, gusts 10 mph16 km/h | 91% | 1% | 0 |
| Sun 12a | Clear | 46°8° (likely 42°6° to 47°8°) | 44°7° | 0% | 5 mph8 km/h from S, gusts 9 mph15 km/h | 94% | 4% | 0 |
| Sun 1a | Clear | 45°7° (likely 42°6° to 46°8°) | 43°6° | 0% | 5 mph8 km/h from S, gusts 11 mph17 km/h | 96% | 2% | 0 |
| Sun 2a | Clear | 44°7° (likely 41°5° to 46°8°) | 42°6° | 0% | 5 mph8 km/h from S, gusts 10 mph17 km/h | 97% | 4% | 0 |
| Sun 3a | Clear | 44°7° (likely 41°5° to 46°8°) | 41°5° | 0% | 5 mph8 km/h from S, gusts 10 mph15 km/h | 99% | 7% | 0 |
| Sun 4a | Mostly clear | 43°6° (likely 41°5° to 45°7°) | 40°4° | 0% | 5 mph8 km/h from S, gusts 10 mph16 km/h | 100% | 27% | 0 |
| Sun 5a | Fog | 42°6° (likely 41°5° to 45°7°) | 39°4° | 0% | 5 mph8 km/h from S, gusts 10 mph16 km/h | 100% | 26% | 0 |
| Sun 6a | Fog | 43°6° (likely 41°5° to 45°7°) | 40°4° | 0% | 5 mph8 km/h from S, gusts 10 mph16 km/h | 98% | 48% | 0 |
| Sun 7a | Fog | 43°6° (likely 41°5° to 45°7°) | 40°4° | 0% | 5 mph8 km/h from S, gusts 10 mph17 km/h | 98% | 66% | 0 |
| Sun 8a | Fog | 42°6° (likely 41°5° to 46°8°) | 40°4° | 0% | 5 mph8 km/h from S, gusts 11 mph17 km/h | 98% | 71% | 0 |
| Sun 9a | Mostly cloudy | 47°8° (likely 43°6° to 48°9°) | 44°7° | 0% | 6 mph10 km/h from S, gusts 11 mph17 km/h | 92% | 71% | 0 |
| Sun 10a | Partly sunny | 53°12° (likely 50°10° to 53°12°) | 53°12° | 0% | 6 mph10 km/h from SSW, gusts 12 mph20 km/h | 82% | 81% | 1 |
| Sun 11a | Cloudy | 58°14° (likely 56°13° to 58°14°) | 58°14° | 0% | 6 mph10 km/h from SSW, gusts 15 mph23 km/h | 71% | 78% | 2 |
| Sun 12p | Cloudy | 62°17° (likely 60°16° to 62°17°) | 62°17° | 0% | 8 mph13 km/h from SSW, gusts 14 mph23 km/h | 61% | 79% | 3 |
| Sun 1p | Cloudy | 66°19° (likely 63°17° to 66°19°) | 66°19° | 0% | 8 mph13 km/h from SW, gusts 14 mph22 km/h | 53% | 74% | 3 |
| Sun 2p | Cloudy | 67°19° (likely 65°18° to 67°19°) | 67°19° | 0% | 9 mph14 km/h from SW, gusts 13 mph21 km/h | 50% | 84% | 3 |
| Sun 3p | Cloudy | 68°20° (likely 66°19° to 68°20°) | 68°20° | 0% | 8 mph13 km/h from SW, gusts 13 mph21 km/h | 47% | 82% | 3 |
| Sun 4p | Partly sunny | 69°21° (likely 65°18° to 69°21°) | 69°21° | 0% | 8 mph13 km/h from SW, gusts 13 mph21 km/h | 45% | 71% | 2 |
| Sun 5p | Mostly cloudy | 68°20° (likely 64°18° to 68°20°) | 68°20° | 0% | 8 mph13 km/h from SSW, gusts 9 mph15 km/h | 48% | 58% | 1 |
| Sun 6p | Mostly cloudy | 66°19° (likely 61°16° to 66°19°) | 66°19° | 0% | 6 mph10 km/h from SSW, gusts 8 mph13 km/h | 51% | 43% | 1 |
| Sun 7p | Partly cloudy | 62°17° (likely 58°14° to 62°17°) | 62°17° | 0% | 6 mph10 km/h from SSW, gusts 9 mph14 km/h | 58% | 35% | 0 |
| Sun 8p | Mostly clear | 56°13° (likely 55°13° to 58°14°) | 56°13° | 0% | 5 mph8 km/h from SSW, gusts 10 mph17 km/h | 71% | 43% | 0 |
| Sun 9p | Partly cloudy | 55°13° (likely 53°12° to 57°14°) | 55°13° | 0% | 5 mph8 km/h from SSW, gusts 11 mph18 km/h | 75% | 45% | 0 |
| Sun 10p | Partly cloudy | 53°12° (likely 53°12° to 56°13°) | 53°12° | 0% | 5 mph8 km/h from SSW, gusts 11 mph18 km/h | 78% | 45% | 0 |
| Sun 11p | Cloudy | 53°12° (likely 52°11° to 55°13°) | 53°12° | 0% | 5 mph8 km/h from SSW, gusts 12 mph19 km/h | 79% | 78% | 0 |
| Mon 12a | Partly cloudy | 52°11° (likely 52°11° to 56°13°) | 52°11° | 0% | 5 mph8 km/h from SW, gusts 11 mph17 km/h | 81% | 75% | 0 |
| Mon 1a | Cloudy | 51°11° (likely 51°11° to 56°13°) | 51°11° | 0% | 3 mph5 km/h from SW, gusts 10 mph16 km/h | 83% | 80% | 0 |
| Mon 2a | Cloudy | 50°10° (likely 50°10° to 54°12°) | 50°10° | 0% | 3 mph5 km/h from WSW, gusts 9 mph14 km/h | 85% | 76% | 0 |
| Mon 3a | Fog | 49°9° (likely 49°9° to 51°11°) | 49°9° | 0% | 3 mph5 km/h from WSW, gusts 7 mph11 km/h | 88% | 54% | 0 |
| Mon 4a | Fog | 49°9° (likely 49°9° to 50°10°) | 49°9° | 0% | 2 mph3 km/h from W, gusts 6 mph10 km/h | 91% | 34% | 0 |
| Mon 5a | Fog | 48°9° (likely 48°9° to 50°10°) | 48°9° | 0% | 2 mph3 km/h from W, gusts 5 mph7 km/h | 93% | 51% | 0 |
| Mon 6a | Fog | 47°8° (likely 47°8° to 50°10°) | 47°8° | 0% | 2 mph3 km/h from WNW, gusts 5 mph8 km/h | 94% | 39% | 0 |
| Mon 7a | Fog | 46°8° (likely 46°8° to 53°12°) | 46°8° | 0% | 2 mph3 km/h from NNW, gusts 6 mph10 km/h | 94% | 68% | 0 |
Days ahead
Shaded: typical range for these dates (1991–2020)
Today, Oct 24. Fog. High 65°18°, low 41°5°. Typical 56°13° / 37°3°. Dry. Forecasts agree.
Morning
6 AM–noon
Sunny, 38°3°Dry
Afternoon
noon–6 PM
Sunny, 65°18°Dry
Evening
6 PM–midnight
Clear, 51°11°Dry
Overnight
midnight–6 AM
Clear, 42°6°Dry
Official NWS forecast
Today: Widespread fog before 10am. Sunny, with a high near 65. South southeast wind around 5 mph.
Tonight: Patchy fog after 2am. Partly cloudy, with a low around 41. South southeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 63°17°–65°18°
- Low, likely
- 37°3°–41°5°
- Typical high / low
- 56°13° / 37°3°
- Wind
- 7 mph11 km/h, gusts 13 mph21 km/h
- UV peak
- 4
Tomorrow, Oct 25. Cloudy. High 69°21°, low 46°8°. Typical 56°13° / 37°3°. Dry. Forecasts agree.
Morning
6 AM–noon
Mostly cloudy, 42°6°Dry
Afternoon
noon–6 PM
Cloudy, 69°21°Dry
Evening
6 PM–midnight
Partly cloudy, 56°13°Dry
Overnight
midnight–6 AM
Fog, 48°9°Dry
Official NWS forecast
Day: Patchy fog before 9am. Partly sunny, with a high near 69. South southwest wind 5 to 9 mph.
Night: Patchy fog after 2am. Partly cloudy, with a low around 46. Southwest wind 2 to 6 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
- High, likely
- 66°19°–69°21°
- Low, likely
- 41°5°–46°8°
- Typical high / low
- 56°13° / 37°3°
- Wind
- 9 mph14 km/h, gusts 19 mph30 km/h
- UV peak
- 3
Monday, Oct 26. Cloudy. High 59°15°, low 38°3°. Typical 55°13° / 36°2°. Dry. Mostly agree.
Morning
6 AM–noon
Cloudy, 48°9°Dry
Afternoon
noon–6 PM
Cloudy, 60°15°Dry
Evening
6 PM–midnight
Cloudy, 50°10°Dry
Overnight
midnight–6 AM
Cloudy, 43°6°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Patchy fog before 9am. Partly sunny, with a high near 59. North wind 2 to 8 mph.
Night: Mostly cloudy, with a low around 38.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 57°14°–62°17°
- Low, likely
- 38°3°–46°8°
- Typical high / low
- 55°13° / 36°2°
- Wind
- 12 mph19 km/h, gusts 19 mph30 km/h
- UV peak
- 3
Tuesday, Oct 27. Cloudy. High 55°13°, low 39°4°. Typical 55°13° / 36°2°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 43°6°Dry
Afternoon
noon–6 PM
Cloudy, 56°13°Dry
Evening
6 PM–midnight
Cloudy, 49°9°Dry
Overnight
midnight–6 AM
Cloudy, 46°8°Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 55.
Night: Mostly cloudy, with a low around 39.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 52°11°–60°16°
- Low, likely
- 39°4°–45°7°
- Typical high / low
- 55°13° / 36°2°
- Wind
- 12 mph19 km/h, gusts 21 mph33 km/h
- UV peak
- 3
Wednesday, Oct 28. Cloudy. High 65°18°, low 48°9°. Typical 54°12° / 36°2°. Dry. Forecasts differ.
Morning
6 AM–noon
Cloudy, 47°8°Dry
Afternoon
noon–6 PM
Cloudy, 67°19°Dry
Evening
6 PM–midnight
Clear, 57°14°Dry
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 65.
Night: A slight chance of rain after 8pm. Partly cloudy, with a low around 48.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 63°17°–71°22°
- Low, likely
- 42°6°–50°10°
- Typical high / low
- 54°12° / 36°2°
- Wind
- 11 mph18 km/h, gusts 24 mph38 km/h
- UV peak
- 3
Thursday, Oct 29. Rain. High 68°20°, low 43°6°. Typical 54°12° / 36°2°. Rain 0.04 in1 mm, 20% chance. Mostly agree.
Morning
6 AM–noon
Sunny, 54°12°Dry
Afternoon
noon–6 PM
Mostly sunny, 70°21°Dry
Evening
6 PM–midnight
Clear, 59°15°Dry
Overnight
midnight–6 AM
Cloudy, 48°9°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 68.
Night: Partly cloudy, with a low around 43.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 67°19°–73°23°
- Low, likely
- 43°6°–55°13°
- Typical high / low
- 54°12° / 36°2°
- Wind
- 16 mph26 km/h, gusts 29 mph47 km/h
- UV peak
- 3
Friday, Oct 30. Cloudy. High 64°18°, low 42°6°. Typical 54°12° / 35°2°. Dry. Forecasts differ.
Morning
6 AM–noon
Sunny, 46°8°Dry
Afternoon
noon–6 PM
Mostly sunny, 61°16°Dry
Evening
6 PM–midnight
Cloudy, 52°11°Dry
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 64.
Night: A slight chance of rain after 8pm. Mostly cloudy, with a low around 42.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 57°14°–71°22°
- Low, likely
- 38°3°–53°12°
- Typical high / low
- 54°12° / 35°2°
- Wind
- 12 mph19 km/h, gusts 18 mph29 km/h
- UV peak
- 3
Saturday, Oct 31. Cloudy. High 67°19°, low 50°10°. Typical 53°12° / 35°2°. Rain 0.02 in0.5 mm, 20% chance. Forecasts differ.
Morning
6 AM–noon
Partly sunny, 49°9°Dry
Afternoon
noon–6 PM
Cloudy, 66°19°Dry
Evening
6 PM–midnight
Cloudy, 58°15°Dry
Overnight
midnight–6 AM
Cloudy, 54°12°30% 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
- 54°12°–75°24°
- Low, likely
- 37°3°–55°13°
- Typical high / low
- 53°12° / 35°2°
- Wind
- 11 mph17 km/h, gusts 24 mph39 km/h
- UV peak
- 2
Sunday, Nov 1. Rain. High 67°19°, low 53°12°. Typical 53°12° / 35°2°. Rain 0.16 in4.1 mm, 50% chance. Forecasts differ.
Morning
6 AM–noon
Cloudy, 53°12°40% chance
Afternoon
noon–6 PM
Cloudy, 66°19°40% chance · 0.01 in0.3 mm
Evening
6 PM–midnight
Rain, 60°16°40% chance · 0.23 in5.7 mm
Overnight
midnight–6 AM
Drizzle, 58°15°40% chance · 0.16 in3.9 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.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
- High, likely
- 58°14°–75°24°
- Low, likely
- 43°6°–58°14°
- Typical high / low
- 53°12° / 35°2°
- Wind
- 22 mph36 km/h, gusts 41 mph66 km/h
Monday, Nov 2. Rain. High 61°16°, low 54°12°. Typical 52°11° / 34°1°. Rain 0.59 in15 mm, 40% chance. Mostly agree.
Morning
6 AM–noon
Drizzle, 57°14°30% chance · 0.06 in1.4 mm
Afternoon
noon–6 PM
Rain, 61°16°30% chance · 0.22 in5.6 mm
Evening
6 PM–midnight
Rain, 56°13°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.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
- High, likely
- 56°13°–63°17°
- Low, likely
- 50°10°–56°13°
- Typical high / low
- 52°11° / 34°1°
- Wind
- 18 mph28 km/h, gusts 37 mph60 km/h
The outlook
Today
Dry, high 65°, low 41°.
Tomorrow
Dry, high 69°, low 46°, warming up.
Monday
Dry, high 59°, low 38°, cooling off.
Rest of week
Highs 55–68°; chance of precipitation on Sunday, Monday.
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
Rivers
NOAA river gauges within 25 mi
S. Br. Flint River at Columbiaville
12 mi- Level
- 1.6 ft
- Flow
- 77 cfs
Reading from Sat 6:45 AM · NWS gauge page
Flint River near Otisville
18 mi- Level
- 2.8 ft
- Flow
- 104 cfs
Reading from Sat 6:45 AM · NWS gauge page
Cass River near Cass City
19 mi- Level
- 4.5 ft
- Flow
- 9 cfs
Reading from Sat 5:30 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 23Typical 137
Heating degree days, base 65°F
Heat-pump hours, next 7 days
- h below 47°F
- 14
- 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 3 hours are near freezing and damp, when outdoor units defrost more often.
Comfort
Dry air outside (dew point 32°F). Indoor air will run dry too — a humidifier keeping indoor relative humidity in the 30–50% range is more comfortable and cuts static shocks, without going so high it fogs cold windows.
Open the windows?
Today, 1:00 PM–6:00 PM
Good stretch to open the windows.
Is this typical?
Caro Wwtp · official normals 1991–2020 · records 1928–2026
Oct 24, today vs a typical year
Today’s expected high is 9°5° warmer than typical.
- Normal high / low
- 56°13° / 37°3°
- Forecast high / low
- 65°18° / 41°5°
- Record high
- 81°27° in 1963
- Record low
- 19°−7° in 1981
Last 7 days vs normal
On average 2°1° warmer than normal (daily mean temperature).
- −5°−3°SunOct 18
- +3°+2°MonOct 19
- +5°+3°TueOct 20
- —WedOct 21
- —ThuOct 22
- +6°+3°FriOct 23
- —SatOct 24
Mayville weather by month: normals, records, snow and freeze dates
Sun & moon
Sun
Sunrise 7:58 AM, sunset 6:36 PM.
- Daylight
- 10 h 38 min
- Losing 2 min 44 s a day; shortest Dec 21, 1 h 40 min less
- Golden hour
- 5:56–6:53 PM
- Morning 7:40–8:38 AM
- Blue hour
- 6:53–7:05 PM
- Morning 7:29–7:40 AM; first light 7:29 AM
Stars tonight? Fair
Mostly clear 10 PM–4 AM, but the moon is 99% lit and up.
Moon
Waxing gibbous
96% lit · growing
- Today
- sets 6:09 AM · rises 5:34 PM
- Full moon
- Oct 26
- New moon
- Nov 9
