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

Washtenaw County, Michigan, United States

Last updated: 7:42 PM CDT  ·  Refresh
9°C
Feels like 6°
Mostly Cloudy
▲ 19°  /  ▼ 1°
Wind
13 mph NNW
Humidity
72%
Dew Point
4°
Pressure
29.12 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
61%
Sunrise
7:49 AM
Sunset
6:51 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Washtenaw County is currently mostly cloudy at 9°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:49AM · Sunset: 6:51PM.

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
23 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
9°
12%
9 PM
8°
11%
10 PM
7°
6%
11 PM
6°
6%
12 AM
6°
6%
1 AM
6°
4%
2 AM
4°
3%
3 AM
4°
3%
4 AM
3°
3%
5 AM
2°
3%
6 AM
2°
3%
7 AM
1°
3%
8 AM
2°
3%
9 AM
3°
3%
10 AM
5°
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° 1°
Mostly Cloudy.
Sat
12° 1°
Clear.
Sun
18° 2°
Clear.
Mon
22° 4°
Clear.
Tue
23° 8°
Partly Cloudy.
Wed
23° 8°
Clear.
Thu
24° 8°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 9° Mostly Cloudy 12% 13 mph NNW 72%
9 PM 8° Partly Cloudy 11% 13 mph N 70%
10 PM 7° Partly Cloudy 6% 14 mph NNW 72%
11 PM 6° Partly Cloudy 6% 15 mph NNW 72%
12 AM 6° Partly Cloudy 6% 14 mph N 72%
1 AM 6° Partly Cloudy 4% 14 mph N 73%
2 AM 4° Mostly Clear 3% 13 mph NNW 74%
3 AM 4° Mostly Clear 3% 12 mph NNW 76%
4 AM 3° Mostly Clear 3% 12 mph NNW 77%
5 AM 2° Mostly Clear 3% 11 mph NNW 77%
6 AM 2° Clear 3% 9 mph NNW 78%
7 AM 1° Clear 3% 8 mph NNW 79%
8 AM 2° Clear 3% 8 mph NNW 74%
9 AM 3° Clear 3% 8 mph N 65%
10 AM 5° Clear 3% 9 mph N 56%
11 AM 7° Clear 3% 8 mph N 48%
12 PM 8° Clear 3% 6 mph NNW 43%
1 PM 10° Clear 3% 6 mph NNW 38%
2 PM 11° Clear 3% 6 mph NW 36%
3 PM 12° Clear 3% 6 mph WNW 36%
4 PM 12° Clear 3% 6 mph WNW 36%
5 PM 11° Clear 3% 6 mph WNW 38%
6 PM 9° Clear 3% 6 mph W 42%
7 PM 9° Clear 3% 6 mph W 46%
15-Day Forecast
Today
10/16
Mostly Cloudy
12%
1°
19°
Sat
10/17
Clear
3%
1°
12°
Sun
10/18
Clear
3%
2°
18°
Mon
10/19
Clear
3%
4°
22°
Tue
10/20
Partly Cloudy
3%
8°
23°
Wed
10/21
Clear
3%
8°
23°
Thu
10/22
Clear
3%
8°
24°
Fri
10/23
Partly Cloudy
3%
10°
23°
Sat
10/24
Partly Cloudy
3%
9°
22°
Sun
10/25
Overcast
35%
8°
21°
Mon
10/26
Overcast
25%
7°
17°
Tue
10/27
Clear
60%
7°
17°
Wed
10/28
Clear
60%
6°
17°
Thu
10/29
Drizzle
60%
7°
18°
Fri
10/30
Drizzle
60%
7°
17°
23
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
23 AQI 4.3 µg/m³
O3
Ground-level ozone
20 AQI 23 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 23 Good 20 23
Sun 23 Good 23 8
Mon 29 Good 28 29
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 LCLLFCEL0°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 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE8 J/kg
MUCAPE20 J/kg
SBCIN-88 J/kg
MLCIN-33 J/kg
Lifted Index7.0
Kinematics
0–6 km Shear51 kt
0–1 km Shear20 kt
Eff. Shear—
0–1 km SRH-103
0–3 km SRH-19
Eff. SRH—
Storm Motion318° @ 34 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index17.5
Thermo & Levels
PWAT0.52 in
0–3 km LR6.3 °C/km
700–500 LR5.8 °C/km
Total Totals44.9
LCL919 hPa
LFC780 hPa
EL766 hPa
Freezing Lvl4,377 ft