Frost Advisory — Huron, MI, Sanilac, MI, St. Clair, MI, Livingston, MI, Oakland, MI, Macomb, MI, Washtenaw, MI, Wayne, MI, Lenawee, MI, Monroe, MI 7:00 AM

Saint Clair County, Michigan, United States

Last updated: 7:42 PM CDT  ·  Refresh
8°C
Feels like 5°
Partly Cloudy
▲ 19°  /  ▼ 4°
Wind
15 mph NNW
Humidity
73%
Dew Point
4°
Pressure
29.36 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
30%
Sunrise
7:45 AM
Sunset
6:46 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Clair County is currently partly cloudy at 8°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:45AM · Sunset: 6:46PM.

Alerts

Frost Advisory
Huron, MI, Sanilac, MI, St. Clair, MI, Livingston, MI, Oakland, MI, Macomb, MI, Washtenaw, MI, Wayne, MI, Lenawee, MI, Monroe, MI
Expires 7:00 AM
26 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
8°
15%
9 PM
8°
24%
10 PM
7°
18%
11 PM
7°
19%
12 AM
7°
6%
1 AM
6°
6%
2 AM
6°
6%
3 AM
6°
6%
4 AM
5°
3%
5 AM
4°
3%
6 AM
4°
3%
7 AM
4°
3%
8 AM
4°
3%
9 AM
5°
3%
10 AM
6°
3%
11 AM
7°
3%
12 PM
8°
3%
1 PM
10°
3%
2 PM
11°
3%
3 PM
12°
3%
4 PM
12°
3%
5 PM
11°
3%
6 PM
9°
3%
7 PM
9°
3%
7-Day Forecast
Tonight
19° 4°
Partly Cloudy.
Sat
12° 4°
Mostly Clear.
Sun
18° 4°
Clear.
Mon
21° 6°
Clear.
Tue
22° 9°
Mostly Clear.
Wed
21° 8°
Mostly Cloudy.
Thu
22° 8°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 8° Partly Cloudy 15% 15 mph NNW 73%
9 PM 8° Mostly Clear 24% 16 mph NNW 74%
10 PM 7° Mostly Clear 18% 17 mph NNW 74%
11 PM 7° Partly Cloudy 19% 16 mph NNW 74%
12 AM 7° Partly Cloudy 6% 16 mph NNW 75%
1 AM 6° Partly Cloudy 6% 16 mph NNW 75%
2 AM 6° Partly Cloudy 6% 16 mph NNW 75%
3 AM 6° Partly Cloudy 6% 15 mph NNW 74%
4 AM 5° Partly Cloudy 3% 14 mph NNW 73%
5 AM 4° Partly Cloudy 3% 13 mph NNW 71%
6 AM 4° Partly Cloudy 3% 12 mph NNW 70%
7 AM 4° Partly Cloudy 3% 11 mph NNW 68%
8 AM 4° Partly Cloudy 3% 11 mph NNW 64%
9 AM 5° Mostly Clear 3% 11 mph NNW 59%
10 AM 6° Mostly Clear 3% 11 mph NNW 54%
11 AM 7° Clear 3% 9 mph NNW 51%
12 PM 8° Clear 3% 8 mph NNW 47%
1 PM 10° Clear 3% 7 mph NW 43%
2 PM 11° Clear 3% 7 mph NW 40%
3 PM 12° Clear 3% 7 mph WNW 38%
4 PM 12° Clear 3% 7 mph W 37%
5 PM 11° Clear 3% 7 mph W 40%
6 PM 9° Clear 3% 7 mph W 44%
7 PM 9° Clear 3% 6 mph W 47%
15-Day Forecast
Today
10/16
Partly Cloudy
19%
4°
19°
Sat
10/17
Mostly Clear
6%
4°
12°
Sun
10/18
Clear
3%
4°
18°
Mon
10/19
Clear
3%
6°
21°
Tue
10/20
Mostly Clear
3%
9°
22°
Wed
10/21
Mostly Cloudy
3%
8°
21°
Thu
10/22
Mostly Clear
3%
8°
22°
Fri
10/23
Mostly Clear
3%
10°
21°
Sat
10/24
Mostly Clear
3%
8°
21°
Sun
10/25
Overcast
35%
9°
20°
Mon
10/26
Overcast
32%
8°
17°
Tue
10/27
Drizzle
60%
8°
16°
Wed
10/28
Clear
25%
8°
16°
Thu
10/29
Drizzle
60%
9°
17°
Fri
10/30
Drizzle
60%
9°
16°
26
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
17 AQI 3.1 µg/m³
O3
Ground-level ozone
Dominant
26 AQI 29 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 26 Good 26 17
Sun 30 Good 30 4
Mon 28 Good 28 25
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Fri Oct 16, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 100 110 120 130 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE7 J/kg
MUCAPE15 J/kg
SBCIN—
MLCIN-31 J/kg
Lifted Index9.6
Kinematics
0–6 km Shear60 kt
0–1 km Shear20 kt
Eff. Shear—
0–1 km SRH-94
0–3 km SRH13
Eff. SRH—
Storm Motion312° @ 37 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index18.0
Thermo & Levels
PWAT0.56 in
0–3 km LR6.3 °C/km
700–500 LR4.9 °C/km
Total Totals42.7
LCL929 hPa
LFC—
EL—
Freezing Lvl4,239 ft