Saint Joseph County, Michigan, United States

Last updated: 7:56 PM CDT  ·  Refresh
22°C
Feels like 22°
Mostly Cloudy
▲ 27°  /  ▼ 19°
Wind
10 mph SSW
Humidity
91%
Dew Point
20°
Pressure
28.81 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
77%
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 22°C. Precipitation is likely — peak probability 53% around 10 PM. Atmospheric instability is elevated (CAPE up to 688 J/kg) — isolated convective development possible. Sunrise: 6:31AM · Sunset: 9:05PM.

Alerts

No active alerts for this location.
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
35%
9 PM
22°
40%
10 PM
22°
52%
11 PM
22°
35%
12 AM
22°
43%
1 AM
22°
28%
2 AM
22°
29%
3 AM
22°
19%
4 AM
22°
8%
5 AM
20°
8%
6 AM
19°
19%
7 AM
19°
19%
8 AM
20°
19%
9 AM
21°
15%
10 AM
22°
5%
11 AM
23°
3%
12 PM
24°
3%
1 PM
26°
3%
2 PM
27°
3%
3 PM
26°
3%
4 PM
26°
3%
5 PM
27°
3%
6 PM
26°
3%
7 PM
24°
3%
7-Day Forecast
Tonight
27° 19°
Mostly Cloudy with a 35% chance of rain.
Tue
28° 16°
Fog with a 29% chance of rain.
Wed
28° 13°
Clear.
Thu
28° 14°
Mostly Clear.
Fri
26° 19°
Partly Cloudy.
Sat
26° 17°
Rain, 64% chance.
Sun
27° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Cloudy 35% 10 mph SSW 91%
9 PM 22° Partly Cloudy 40% 11 mph SSW 92%
10 PM 22° Partly Cloudy 52% 10 mph SSW 93%
11 PM 22° Mostly Cloudy 35% 9 mph SSW 92%
12 AM 22° Partly Cloudy 43% 7 mph SW 94%
1 AM 22° Mostly Cloudy 28% 8 mph WSW 94%
2 AM 22° Overcast 29% 7 mph WNW 95%
3 AM 22° Overcast 19% 6 mph NW 96%
4 AM 22° Overcast 8% 7 mph NNW 96%
5 AM 20° Overcast 8% 8 mph NNW 96%
6 AM 19° Partly Cloudy 19% 9 mph NNW 95%
7 AM 19° Mostly Cloudy 19% 11 mph N 94%
8 AM 20° Fog 19% 11 mph N 92%
9 AM 21° Haze 15% 11 mph N 88%
10 AM 22° Haze 5% 10 mph N 86%
11 AM 23° Mostly Cloudy 3% 11 mph N 79%
12 PM 24° Mostly Cloudy 3% 11 mph N 72%
1 PM 26° Partly Cloudy 3% 11 mph N 63%
2 PM 27° Partly Cloudy 3% 12 mph N 58%
3 PM 26° Partly Cloudy 3% 12 mph NNW 54%
4 PM 26° Partly Cloudy 3% 12 mph NNW 52%
5 PM 27° Partly Cloudy 3% 11 mph NNW 54%
6 PM 26° Partly Cloudy 3% 11 mph NNW 57%
7 PM 24° Mostly Clear 3% 11 mph NNW 60%
15-Day Forecast
Today
7/27
Mostly Cloudy
35%
19°
27°
Tue
7/28
Fog
29%
16°
28°
Wed
7/29
Clear
3%
13°
28°
Thu
7/30
Mostly Clear
14%
14°
28°
Fri
7/31
Partly Cloudy
16%
19°
26°
Sat
8/1
Rain
64%
17°
26°
Sun
8/2
Clear
17%
16°
27°
Mon
8/3
Clear
8%
15°
28°
Tue
8/4
Drizzle
44%
17°
29°
Wed
8/5
Drizzle
51%
19°
30°
Thu
8/6
Drizzle
60%
18°
34°
Fri
8/7
Drizzle
60%
18°
34°
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
Today 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, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE90 J/kg
MLCAPE943 J/kg
MUCAPE1746 J/kg
SBCIN-473 J/kg
MLCIN0 J/kg
Lifted Index-0.5
Kinematics
0–6 km Shear57 kt
0–1 km Shear18 kt
Eff. Shear60 kt
0–1 km SRH131
0–3 km SRH86
Eff. SRH-60
Storm Motion279° @ 34 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.1
STP (eff)0.0
Supercell0.0
K-Index41.9
Thermo & Levels
PWAT1.91 in
0–3 km LR3.9 °C/km
700–500 LR6.4 °C/km
Total Totals52.0
LCL953 hPa
LFC594 hPa
EL319 hPa
Freezing Lvl14,606 ft