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: 4:53 PM CDT  ·  Refresh
30°C
Feels like 34°
Mostly Clear
▲ 31°  /  ▼ 22°
Wind
14 mph SSW
Humidity
69%
Dew Point
23°
Pressure
29.18 inHg
Visibility
10 mi
UV Index
6.8
Cloud Cover
13%
Sunrise
6:06 AM
Sunset
9:31 PM
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WeatherAI™ Analysis

WeatherAI Analysis: Mason County is currently mostly clear at 30°C. Precipitation is likely — peak probability 67% around 3 AM. Atmospheric instability is elevated (CAPE up to 2210 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°
19%
6 PM
30°
30%
7 PM
29°
30%
8 PM
28°
30%
9 PM
26°
30%
10 PM
25°
33%
11 PM
24°
35%
12 AM
23°
40%
1 AM
23°
44%
2 AM
23°
62%
3 AM
22°
67%
4 AM
22°
43%
5 AM
22°
46%
6 AM
22°
50%
7 AM
22°
39%
8 AM
23°
43%
9 AM
23°
35%
10 AM
24°
35%
11 AM
25°
38%
12 PM
28°
42%
1 PM
28°
42%
2 PM
28°
52%
3 PM
28°
49%
4 PM
28°
49%
7-Day Forecast
Today
31° 22°
Mostly Clear with a 33% chance of rain.
Thu
29° 22°
Partly Cloudy with a 74% chance of rain.
Fri
29° 20°
Rain, 69% chance.
Sat
27° 19°
Partly Cloudy with a 57% chance of rain.
Sun
28° 19°
Overcast with a 45% chance of rain.
Mon
26° 18°
Partly Cloudy with a 21% chance of rain.
Tue
28° 18°
Overcast with a 28% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 30° Mostly Clear 19% 14 mph SSW 69%
6 PM 30° Mostly Clear 30% 13 mph SSW 70%
7 PM 29° Mostly Clear 30% 12 mph SSW 72%
8 PM 28° Mostly Clear 30% 11 mph SSW 74%
9 PM 26° Mostly Clear 30% 9 mph SSW 76%
10 PM 25° Mostly Clear 33% 9 mph SW 79%
11 PM 24° Partly Cloudy 35% 8 mph SW 80%
12 AM 23° Partly Cloudy 40% 7 mph SW 83%
1 AM 23° Partly Cloudy 44% 8 mph SW 87%
2 AM 23° Rain 62% 8 mph WSW 90%
3 AM 22° Mostly Cloudy 67% 6 mph SW 91%
4 AM 22° Mostly Cloudy 43% 6 mph SSW 92%
5 AM 22° Mostly Cloudy 46% 6 mph SSW 92%
6 AM 22° Partly Cloudy 50% 6 mph SSW 92%
7 AM 22° Mostly Cloudy 39% 6 mph SSW 92%
8 AM 23° Mostly Cloudy 43% 6 mph SSW 88%
9 AM 23° Partly Cloudy 35% 6 mph SSW 83%
10 AM 24° Partly Cloudy 35% 7 mph SW 78%
11 AM 25° Partly Cloudy 38% 8 mph SW 74%
12 PM 28° Partly Cloudy 42% 9 mph SW 71%
1 PM 28° Mostly Cloudy 42% 10 mph SW 67%
2 PM 28° Mostly Cloudy 52% 10 mph SW 68%
3 PM 28° Mostly Cloudy 49% 10 mph SW 68%
4 PM 28° Mostly Cloudy 49% 10 mph SW 69%
15-Day Forecast
Today
7/1
Mostly Clear
33%
22°
31°
Thu
7/2
Partly Cloudy
74%
22°
29°
Fri
7/3
Rain
69%
20°
29°
Sat
7/4
Partly Cloudy
57%
19°
27°
Sun
7/5
Overcast
45%
19°
28°
Mon
7/6
Partly Cloudy
21%
18°
26°
Tue
7/7
Overcast
28%
18°
28°
Wed
7/8
Rain
69%
18°
28°
Thu
7/9
Clear
44%
17°
28°
Fri
7/10
Drizzle
44%
17°
28°
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°
23°
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, 20:00'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
SBCAPE2499 J/kg
MLCAPE2457 J/kg
MUCAPE2935 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-7.8
Kinematics
0–6 km Shear41 kt
0–1 km Shear9 kt
Eff. Shear37 kt
0–1 km SRH-1
0–3 km SRH-117
Eff. SRH-117
Storm Motion228° @ 44 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index25.0
Thermo & Levels
PWAT1.67 in
0–3 km LR6.3 °C/km
700–500 LR7.0 °C/km
Total Totals50.4
LCL891 hPa
LFC988 hPa
EL169 hPa
Freezing Lvl14,642 ft