Frost Advisory — Ontonagon, MI, Baraga, MI, Marquette, MI, Alger, MI, Luce, MI, Gogebic, MI, Iron, MI, Dickinson, MI, Delta, MI, Southern Schoolcraft, MI, Southern Houghton, MI, Northern Schoolcraft, MI 8:00 AM

Ontonagon County, Michigan, United States

Last updated: 8:33 PM CDT  ·  Refresh
12°C
Feels like 9°
Clear
▲ 17°  /  ▼ 2°
Wind
5 mph E
Humidity
64%
Dew Point
5°
Pressure
29.19 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
6%
Sunrise
7:44 AM
Sunset
7:54 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Ontonagon County is currently clear at 12°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:44AM · Sunset: 7:54PM.

Alerts

Frost Advisory
Ontonagon, MI, Baraga, MI, Marquette, MI, Alger, MI, Luce, MI, Gogebic, MI, Iron, MI, Dickinson, MI, Delta, MI, Southern Schoolcraft, MI, Southern Houghton, MI, Northern Schoolcraft, MI
Expires 8:00 AM
28 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
12°
3%
10 PM
9°
14%
11 PM
9°
7%
12 AM
8°
7%
1 AM
7°
3%
2 AM
6°
3%
3 AM
5°
3%
4 AM
4°
3%
5 AM
4°
3%
6 AM
2°
3%
7 AM
2°
3%
8 AM
3°
3%
9 AM
6°
3%
10 AM
11°
3%
11 AM
14°
3%
12 PM
16°
3%
1 PM
17°
3%
2 PM
19°
3%
3 PM
19°
3%
4 PM
21°
3%
5 PM
20°
3%
6 PM
20°
3%
7 PM
19°
3%
8 PM
18°
3%
7-Day Forecast
Tonight
17° 2°
Clear.
Wed
21° 2°
Clear.
Thu
21° 7°
Overcast.
Fri
24° 9°
Mostly Clear.
Sat
24° 11°
Clear with a 35% chance of rain.
Sun
23° 10°
Clear with a 60% chance of rain.
Mon
23° 13°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 12° Clear 3% 5 mph E 64%
10 PM 9° Clear 14% 5 mph ESE 69%
11 PM 9° Clear 7% 5 mph SE 72%
12 AM 8° Clear 7% 5 mph SE 75%
1 AM 7° Clear 3% 5 mph SE 78%
2 AM 6° Clear 3% 5 mph SE 82%
3 AM 5° Clear 3% 5 mph SE 84%
4 AM 4° Clear 3% 5 mph SE 86%
5 AM 4° Clear 3% 5 mph SE 88%
6 AM 2° Clear 3% 5 mph SE 90%
7 AM 2° Clear 3% 5 mph SSE 91%
8 AM 3° Clear 3% 5 mph SSE 89%
9 AM 6° Clear 3% 5 mph SSE 80%
10 AM 11° Clear 3% 6 mph SSE 70%
11 AM 14° Clear 3% 7 mph SSE 60%
12 PM 16° Clear 3% 7 mph SE 51%
1 PM 17° Clear 3% 7 mph SE 43%
2 PM 19° Clear 3% 7 mph SE 45%
3 PM 19° Clear 3% 7 mph SE 43%
4 PM 21° Clear 3% 7 mph SE 42%
5 PM 20° Clear 3% 7 mph SE 44%
6 PM 20° Clear 3% 7 mph SE 48%
7 PM 19° Clear 3% 7 mph SE 53%
8 PM 18° Clear 3% 7 mph SE 56%
15-Day Forecast
Today
9/22
Clear
3%
2°
17°
Wed
9/23
Clear
7%
2°
21°
Thu
9/24
Overcast
3%
7°
21°
Fri
9/25
Mostly Clear
3%
9°
24°
Sat
9/26
Clear
35%
11°
24°
Sun
9/27
Clear
60%
10°
23°
Mon
9/28
Drizzle
52%
13°
23°
Tue
9/29
Drizzle
63%
12°
21°
Wed
9/30
Rain
69%
8°
17°
Thu
10/1
Rain
68%
7°
16°
Fri
10/2
Drizzle
60%
7°
18°
Sat
10/3
Drizzle
60%
10°
19°
Sun
10/4
Drizzle
60%
7°
16°
Mon
10/5
Drizzle
60%
7°
16°
Tue
10/6
Drizzle
60%
7°
17°
28
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
2 AQI 0.3 µg/m³
O3
Ground-level ozone
Dominant
28 AQI 30 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 28 Good 28 2
Thu 30 Good 30 8
Fri 31 Good 31 19
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 Tue Sep 22, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE13 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index14.8
Kinematics
0–6 km Shear3 kt
0–1 km Shear10 kt
Eff. Shear—
0–1 km SRH54
0–3 km SRH55
Eff. SRH—
Storm Motion177° @ 18 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-18.0
Thermo & Levels
PWAT0.32 in
0–3 km LR3.2 °C/km
700–500 LR6.1 °C/km
Total Totals25.2
LCL897 hPa
LFC988 hPa
EL988 hPa
Freezing Lvl11,007 ft