Excessive Heat Watch 7:00 PM Excessive Heat Warning — 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

Mason County, Michigan, United States

Last updated: 3:36 PM CDT  ·  Refresh
30°C
Feels like 34°
Mostly Clear
▲ 31°  /  ▼ 22°
Wind
13 mph SSW
Humidity
68%
Dew Point
24°
Pressure
29.19 inHg
Visibility
10 mi
UV Index
8.2
Cloud Cover
11%
Sunrise
6:06 AM
Sunset
9:31 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Mason County is currently mostly clear at 30°C. Precipitation is likely — peak probability 58% around 3 PM. Atmospheric instability is elevated (CAPE up to 2664 J/kg) — isolated convective development possible. Sunrise: 6:06AM · Sunset: 9:31PM.

Alerts

Excessive Heat Watch
Expires 7:00 PM
Excessive Heat Warning
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
80 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
30°
10%
5 PM
29°
30%
6 PM
31°
30%
7 PM
29°
30%
8 PM
28°
30%
9 PM
27°
33%
10 PM
25°
38%
11 PM
24°
42%
12 AM
23°
40%
1 AM
23°
50%
2 AM
23°
41%
3 AM
23°
41%
4 AM
22°
41%
5 AM
22°
42%
6 AM
22°
32%
7 AM
23°
37%
8 AM
23°
39%
9 AM
24°
45%
10 AM
24°
44%
11 AM
26°
48%
12 PM
27°
47%
1 PM
27°
47%
2 PM
27°
57%
3 PM
27°
58%
7-Day Forecast
Today
31° 22°
Clear with a 38% chance of rain.
Thu
30° 20°
Mostly Cloudy with a 80% chance of rain.
Fri
29° 19°
Fog with a 69% chance of rain.
Sat
28° 20°
Overcast with a 67% chance of rain.
Sun
28° 19°
Clear with a 50% chance of rain.
Mon
26° 18°
Rain, 21% chance.
Tue
28° 18°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Clear 10% 13 mph SSW 68%
5 PM 29° Clear 30% 14 mph SSW 66%
6 PM 31° Clear 30% 14 mph SSW 68%
7 PM 29° Clear 30% 12 mph SSW 70%
8 PM 28° Clear 30% 11 mph SSW 73%
9 PM 27° Clear 33% 9 mph SSW 75%
10 PM 25° Mostly Clear 38% 8 mph SW 77%
11 PM 24° Mostly Clear 42% 8 mph SW 82%
12 AM 23° Mostly Clear 40% 7 mph WSW 86%
1 AM 23° Rain 50% 7 mph WSW 88%
2 AM 23° Drizzle 41% 6 mph WSW 90%
3 AM 23° Partly Cloudy 41% 6 mph SW 90%
4 AM 22° Partly Cloudy 41% 8 mph SSW 91%
5 AM 22° Partly Cloudy 42% 7 mph SSW 91%
6 AM 22° Mostly Cloudy 32% 7 mph SW 91%
7 AM 23° Mostly Cloudy 37% 8 mph SW 91%
8 AM 23° Mostly Cloudy 39% 8 mph SW 89%
9 AM 24° Mostly Cloudy 45% 7 mph SW 86%
10 AM 24° Mostly Cloudy 44% 7 mph SW 84%
11 AM 26° Mostly Cloudy 48% 8 mph SW 81%
12 PM 27° Mostly Cloudy 47% 8 mph SW 78%
1 PM 27° Mostly Cloudy 47% 10 mph SW 74%
2 PM 27° Mostly Cloudy 57% 10 mph SW 74%
3 PM 27° Mostly Cloudy 58% 10 mph SW 74%
15-Day Forecast
Today
7/1
Clear
38%
22°
31°
Thu
7/2
Mostly Cloudy
80%
20°
30°
Fri
7/3
Fog
69%
19°
29°
Sat
7/4
Overcast
67%
20°
28°
Sun
7/5
Clear
50%
19°
28°
Mon
7/6
Rain
21%
18°
26°
Tue
7/7
Rain
28%
18°
28°
Wed
7/8
Drizzle
69%
18°
28°
Thu
7/9
Drizzle
44%
17°
27°
Fri
7/10
Drizzle
44%
17°
29°
Sat
7/11
Drizzle
60%
17°
24°
Sun
7/12
Drizzle
90%
17°
25°
Mon
7/13
Drizzle
60%
18°
24°
Tue
7/14
Drizzle
60%
17°
23°
Wed
7/15
Drizzle
60%
16°
24°
80
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
80 AQI 24.5 µg/m³
O3
Ground-level ozone
48 AQI 52 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 80 Moderate 48 80
Fri 40 Good 40 38
Sat 42 Good 42 31
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 1, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE3272 J/kg
MLCAPE2650 J/kg
MUCAPE3272 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-8.7
Kinematics
0–6 km Shear41 kt
0–1 km Shear7 kt
Eff. Shear37 kt
0–1 km SRH12
0–3 km SRH-119
Eff. SRH-119
Storm Motion222° @ 43 kt
0–1 km EHI0.3
Composite Parameters
Sig. Tornado0.2
STP (eff)0.0
Supercell0.0
K-Index24.2
Thermo & Levels
PWAT1.64 in
0–3 km LR6.5 °C/km
700–500 LR6.8 °C/km
Total Totals49.6
LCL902 hPa
LFC988 hPa
EL155 hPa
Freezing Lvl14,508 ft