Severe Thunderstorm Watch 7:00 PM

Saint Joseph County, Michigan, United States

Last updated: 6:08 PM CDT  ·  Refresh
23°C
Feels like 24°
Mostly Cloudy
▲ 28°  /  ▼ 19°
Wind
11 mph SSW
Humidity
90%
Dew Point
22°
Pressure
28.86 inHg
Visibility
5 mi
UV Index
2.8
Cloud Cover
79%
Sunrise
6:31 AM
Sunset
9:05 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Joseph County is currently mostly cloudy at 23°C. Precipitation is likely — peak probability 72% around 7 PM. Atmospheric instability is elevated (CAPE up to 784 J/kg) — isolated convective development possible. Sunrise: 6:31AM · Sunset: 9:05PM.

Alerts

Severe Thunderstorm Watch
Expires 7:00 PM
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
72%
8 PM
24°
55%
9 PM
24°
61%
10 PM
23°
70%
11 PM
22°
50%
12 AM
22°
47%
1 AM
22°
47%
2 AM
22°
33%
3 AM
22°
25%
4 AM
22°
26%
5 AM
22°
24%
6 AM
20°
12%
7 AM
20°
12%
8 AM
20°
9%
9 AM
21°
19%
10 AM
22°
16%
11 AM
22°
4%
12 PM
23°
4%
1 PM
24°
4%
2 PM
25°
4%
3 PM
25°
4%
4 PM
25°
4%
5 PM
25°
4%
6 PM
27°
3%
7-Day Forecast
Tonight
28° 19°
Mostly Cloudy with a 72% chance of rain.
Tue
27° 16°
Haze with a 47% chance of rain.
Wed
28° 14°
Clear.
Thu
28° 15°
Clear with a 40% chance of rain.
Fri
27° 19°
Mostly Cloudy with a 40% chance of rain.
Sat
23° 17°
Rain, 67% chance.
Sun
26° 16°
Mostly Cloudy with a 33% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 23° Mostly Cloudy 72% 11 mph SSW 90%
8 PM 24° Partly Cloudy 55% 11 mph S 88%
9 PM 24° Partly Cloudy 61% 10 mph S 89%
10 PM 23° Thunderstorm 70% 10 mph S 90%
11 PM 22° Partly Cloudy 50% 9 mph S 92%
12 AM 22° Mostly Cloudy 47% 8 mph SSW 92%
1 AM 22° Mostly Cloudy 47% 6 mph SW 94%
2 AM 22° Mostly Cloudy 33% 7 mph WSW 94%
3 AM 22° Overcast 25% 6 mph W 95%
4 AM 22° Rain 26% 5 mph NW 95%
5 AM 22° Overcast 24% 6 mph NNW 96%
6 AM 20° Mostly Cloudy 12% 7 mph N 96%
7 AM 20° Fog 12% 9 mph N 95%
8 AM 20° Fog 9% 11 mph N 94%
9 AM 21° Haze 19% 11 mph N 90%
10 AM 22° Haze 16% 10 mph N 86%
11 AM 22° Overcast 4% 10 mph N 82%
12 PM 23° Mostly Cloudy 4% 11 mph N 76%
1 PM 24° Partly Cloudy 4% 11 mph N 70%
2 PM 25° Partly Cloudy 4% 12 mph N 64%
3 PM 25° Partly Cloudy 4% 12 mph N 62%
4 PM 25° Partly Cloudy 4% 12 mph NNW 59%
5 PM 25° Partly Cloudy 4% 12 mph NNW 57%
6 PM 27° Mostly Clear 3% 11 mph NNW 60%
15-Day Forecast
Today
7/27
Mostly Cloudy
72%
19°
28°
Tue
7/28
Haze
47%
16°
27°
Wed
7/29
Clear
3%
14°
28°
Thu
7/30
Clear
40%
15°
28°
Fri
7/31
Mostly Cloudy
40%
19°
27°
Sat
8/1
Rain
67%
17°
23°
Sun
8/2
Mostly Cloudy
33%
16°
26°
Mon
8/3
Mostly Clear
13%
16°
27°
Tue
8/4
Drizzle
47%
17°
29°
Wed
8/5
Rain
66%
19°
28°
Thu
8/6
Rain
64%
18°
28°
Fri
8/7
Drizzle
60%
18°
29°
Sat
8/8
Drizzle
60%
18°
28°
Sun
8/9
Drizzle
90%
18°
27°
Mon
8/10
Drizzle
60%
18°
27°
52
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
52 AQI 9.8 µg/m³
O3
Ground-level ozone
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 52 Moderate 46 52
Wed 37 Good 37 25
Thu 36 Good 36 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 Mon Jul 27, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE857 J/kg
MLCAPE171 J/kg
MUCAPE857 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-4.2
Kinematics
0–6 km Shear59 kt
0–1 km Shear17 kt
Eff. Shear56 kt
0–1 km SRH138
0–3 km SRH-36
Eff. SRH-36
Storm Motion278° @ 34 kt
0–1 km EHI0.7
Composite Parameters
Sig. Tornado1.4
STP (eff)0.0
Supercell0.0
K-Index32.4
Thermo & Levels
PWAT1.82 in
0–3 km LR4.9 °C/km
700–500 LR6.6 °C/km
Total Totals44.8
LCL950 hPa
LFC977 hPa
EL226 hPa
Freezing Lvl13,865 ft