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

Montcalm County, Michigan, United States

Last updated: 6:44 PM CDT  ·  Refresh
32°C
Feels like 33°
Mostly Clear
▲ 34°  /  ▼ 18°
Wind
10 mph NNW
Humidity
50%
Dew Point
20°
Pressure
29.02 inHg
Visibility
6 mi
UV Index
3.6
Cloud Cover
21%
Sunrise
6:14 AM
Sunset
9:18 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Montcalm County is currently mostly clear at 32°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1424 J/kg) — isolated convective development possible. Sunrise: 6:14AM · Sunset: 9:18PM.

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
159 AQI · Unhealthy Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
32°
11%
8 PM
31°
23%
9 PM
27°
23%
10 PM
26°
14%
11 PM
24°
14%
12 AM
23°
14%
1 AM
21°
7%
2 AM
20°
3%
3 AM
19°
3%
4 AM
19°
3%
5 AM
18°
3%
6 AM
18°
3%
7 AM
19°
3%
8 AM
21°
3%
9 AM
23°
3%
10 AM
25°
3%
11 AM
26°
3%
12 PM
27°
3%
1 PM
30°
3%
2 PM
32°
3%
3 PM
32°
3%
4 PM
32°
3%
5 PM
33°
3%
6 PM
32°
3%
7-Day Forecast
Tonight
34° 18°
Mostly Clear.
Thu
33° 18°
Mostly Clear.
Fri
33° 19°
Partly Cloudy with a 31% chance of rain.
Sat
31° 15°
Partly Cloudy with a 42% chance of rain.
Sun
27° 13°
Partly Cloudy.
Mon
28° 13°
Rain, 64% chance.
Tue
27° 13°
Partly Cloudy with a 52% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 32° Mostly Clear 11% 10 mph NNW 50%
8 PM 31° Mostly Clear 23% 9 mph N 51%
9 PM 27° Mostly Clear 23% 8 mph N 53%
10 PM 26° Partly Cloudy 14% 8 mph NNE 52%
11 PM 24° Partly Cloudy 14% 7 mph NNE 54%
12 AM 23° Partly Cloudy 14% 6 mph NNE 58%
1 AM 21° Mostly Cloudy 7% 5 mph NNE 61%
2 AM 20° Partly Cloudy 3% 5 mph N 62%
3 AM 19° Partly Cloudy 3% 5 mph N 63%
4 AM 19° Partly Cloudy 3% 5 mph N 62%
5 AM 18° Mostly Clear 3% 5 mph N 63%
6 AM 18° Haze 3% 5 mph N 64%
7 AM 19° Clear 3% 5 mph N 64%
8 AM 21° Clear 3% 5 mph N 59%
9 AM 23° Clear 3% 5 mph N 54%
10 AM 25° Clear 3% 6 mph N 48%
11 AM 26° Clear 3% 6 mph N 43%
12 PM 27° Clear 3% 6 mph N 40%
1 PM 30° Mostly Clear 3% 6 mph N 37%
2 PM 32° Mostly Clear 3% 5 mph N 36%
3 PM 32° Mostly Clear 3% 4 mph N 35%
4 PM 32° Partly Cloudy 3% 4 mph NNW 35%
5 PM 33° Partly Cloudy 3% 4 mph NNW 39%
6 PM 32° Partly Cloudy 3% 4 mph NNW 44%
15-Day Forecast
Today
7/15
Mostly Clear
14%
18°
34°
Thu
7/16
Mostly Clear
7%
18°
33°
Fri
7/17
Partly Cloudy
31%
19°
33°
Sat
7/18
Partly Cloudy
42%
15°
31°
Sun
7/19
Partly Cloudy
7%
13°
27°
Mon
7/20
Rain
64%
13°
28°
Tue
7/21
Partly Cloudy
52%
13°
27°
Wed
7/22
Mostly Clear
8%
13°
27°
Thu
7/23
Mostly Clear
18%
14°
29°
Fri
7/24
Rain
68%
16°
29°
Sat
7/25
Drizzle
51%
17°
27°
Sun
7/26
Drizzle
60%
17°
29°
Mon
7/27
Drizzle
60%
16°
29°
Tue
7/28
Drizzle
60%
16°
29°
Wed
7/29
Drizzle
60%
16°
29°
159
Unhealthy
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Some members of the general public may experience health effects; sensitive groups may experience more serious effects.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
159 AQI 67.7 µg/m³
O3
Ground-level ozone
104 AQI 73 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 159 Unhealthy 104 159
Fri 500 Hazardous 58 500
Sat 361 Hazardous 108 361
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 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1359 J/kg
MLCAPE2032 J/kg
MUCAPE2259 J/kg
SBCIN-101 J/kg
MLCIN0 J/kg
Lifted Index-3.5
Kinematics
0–6 km Shear38 kt
0–1 km Shear3 kt
Eff. Shear40 kt
0–1 km SRH-15
0–3 km SRH-72
Eff. SRH-72
Storm Motion265° @ 25 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index20.2
Thermo & Levels
PWAT1.54 in
0–3 km LR6.7 °C/km
700–500 LR6.6 °C/km
Total Totals49.9
LCL829 hPa
LFC656 hPa
EL191 hPa
Freezing Lvl15,262 ft