Heat Advisory — Mason, MI, Lake, MI, Osceola, MI, Clare, MI, Oceana, MI, Newaygo, MI, Mecosta, MI, Isabella, MI, Muskegon, MI, Montcalm, MI, Gratiot, MI, Ottawa, MI, Kent, MI, Ionia, MI, Clinton, MI, Allegan, MI, Barry, MI, Eaton, MI, Ingham, MI, Van Buren, MI, Kalamazoo, MI, Calhoun, MI, Jackson, MI 7:00 PM

Allegan County, Michigan, United States

Last updated: 6:44 PM CDT  ·  Refresh
29°C
Feels like 33°
Clear
▲ 33°  /  ▼ 18°
Wind
9 mph WNW
Humidity
70%
Dew Point
22°
Pressure
29.21 inHg
Visibility
10 mi
UV Index
3.8
Cloud Cover
6%
Sunrise
6:19 AM
Sunset
9:19 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Allegan County is currently clear at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1768 J/kg) — isolated convective development possible. Sunrise: 6:19AM · Sunset: 9:19PM.

Alerts

Heat Advisory
Mason, MI, Lake, MI, Osceola, MI, Clare, MI, Oceana, MI, Newaygo, MI, Mecosta, MI, Isabella, MI, Muskegon, MI, Montcalm, MI, Gratiot, MI, Ottawa, MI, Kent, MI, Ionia, MI, Clinton, MI, Allegan, MI, Barry, MI, Eaton, MI, Ingham, MI, Van Buren, MI, Kalamazoo, MI, Calhoun, MI, Jackson, MI
Expires 7:00 PM
82 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
11%
8 PM
29°
29%
9 PM
27°
29%
10 PM
26°
21%
11 PM
24°
21%
12 AM
24°
14%
1 AM
22°
15%
2 AM
22°
3%
3 AM
21°
15%
4 AM
21°
15%
5 AM
18°
15%
6 AM
19°
3%
7 AM
19°
3%
8 AM
21°
3%
9 AM
24°
3%
10 AM
27°
3%
11 AM
28°
3%
12 PM
29°
3%
1 PM
32°
3%
2 PM
33°
3%
3 PM
33°
3%
4 PM
33°
3%
5 PM
34°
3%
6 PM
33°
3%
7-Day Forecast
Tonight
33° 18°
Clear with a 21% chance of rain.
Thu
34° 18°
Mostly Clear.
Fri
34° 21°
Mostly Clear with a 51% chance of rain.
Sat
31° 16°
Partly Cloudy with a 60% chance of rain.
Sun
28° 15°
Mostly Clear.
Mon
29° 15°
Rain, 90% chance.
Tue
28° 14°
Mostly Clear with a 70% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 29° Clear 11% 9 mph WNW 70%
8 PM 29° Clear 29% 7 mph NW 69%
9 PM 27° Mostly Clear 29% 5 mph NW 72%
10 PM 26° Partly Cloudy 21% 5 mph NW 75%
11 PM 24° Mostly Cloudy 21% 5 mph NNW 75%
12 AM 24° Mostly Cloudy 14% 4 mph N 74%
1 AM 22° Mostly Cloudy 15% 4 mph NNE 72%
2 AM 22° Mostly Cloudy 3% 5 mph NNE 71%
3 AM 21° Mostly Cloudy 15% 5 mph NE 71%
4 AM 21° Partly Cloudy 15% 5 mph NE 71%
5 AM 18° Partly Cloudy 15% 5 mph NE 70%
6 AM 19° Partly Cloudy 3% 4 mph NE 71%
7 AM 19° Partly Cloudy 3% 4 mph NE 69%
8 AM 21° Mostly Clear 3% 5 mph ENE 61%
9 AM 24° Mostly Clear 3% 5 mph ENE 52%
10 AM 27° Clear 3% 5 mph ENE 44%
11 AM 28° Clear 3% 4 mph NE 39%
12 PM 29° Clear 3% 4 mph NE 36%
1 PM 32° Clear 3% 4 mph NE 33%
2 PM 33° Clear 3% 4 mph NNE 32%
3 PM 33° Mostly Clear 3% 3 mph N 32%
4 PM 33° Mostly Clear 3% 4 mph NNW 32%
5 PM 34° Mostly Clear 3% 4 mph NNW 36%
6 PM 33° Mostly Clear 3% 5 mph NNW 40%
15-Day Forecast
Today
7/15
Clear
21%
18°
33°
Thu
7/16
Mostly Clear
15%
18°
34°
Fri
7/17
Mostly Clear
51%
21°
34°
Sat
7/18
Partly Cloudy
60%
16°
31°
Sun
7/19
Mostly Clear
19%
15°
28°
Mon
7/20
Rain
90%
15°
29°
Tue
7/21
Mostly Clear
70%
14°
28°
Wed
7/22
Mostly Clear
17%
13°
27°
Thu
7/23
Overcast
18%
14°
29°
Fri
7/24
Rain
68%
16°
29°
Sat
7/25
Drizzle
51%
17°
28°
Sun
7/26
Drizzle
60%
18°
29°
Mon
7/27
Drizzle
60%
17°
29°
Tue
7/28
Drizzle
60%
17°
29°
Wed
7/29
Drizzle
60%
18°
30°
82
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
82 AQI 25.7 µg/m³
O3
Ground-level ozone
61 AQI 59 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 82 Moderate 61 82
Fri 500 Hazardous 112 500
Sat 196 Unhealthy 71 196
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 Wed Jul 15, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1882 J/kg
MLCAPE1670 J/kg
MUCAPE2141 J/kg
SBCIN-234 J/kg
MLCIN0 J/kg
Lifted Index-3.7
Kinematics
0–6 km Shear18 kt
0–1 km Shear6 kt
Eff. Shear23 kt
0–1 km SRH-3
0–3 km SRH-83
Eff. SRH-83
Storm Motion250° @ 18 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index14.8
Thermo & Levels
PWAT1.30 in
0–3 km LR5.4 °C/km
700–500 LR6.5 °C/km
Total Totals42.7
LCL895 hPa
LFC678 hPa
EL175 hPa
Freezing Lvl15,571 ft