Freeze Watch 8:00 AM

Jefferson County, Ohio, United States

Last updated: 11:21 PM CDT  ·  Refresh
9°C
Feels like 7°
Overcast
▲ 11°  /  ▼ 1°
Wind
12 mph N
Humidity
89%
Dew Point
8°
Pressure
28.92 inHg
Visibility
2 mi
UV Index
0.0
Cloud Cover
96%
Sunrise
7:36 AM
Sunset
6:40 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Jefferson County is currently overcast at 9°C. Precipitation is likely — peak probability 79% around 12 AM. Sunrise: 7:36AM · Sunset: 6:40PM.

Alerts

Freeze Watch
Expires 8:00 AM
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
9°
78%
1 AM
8°
58%
2 AM
9°
18%
3 AM
8°
5%
4 AM
8°
5%
5 AM
7°
6%
6 AM
6°
6%
7 AM
6°
3%
8 AM
6°
3%
9 AM
6°
3%
10 AM
8°
3%
11 AM
8°
3%
12 PM
9°
3%
1 PM
10°
3%
2 PM
10°
3%
3 PM
11°
3%
4 PM
11°
3%
5 PM
10°
3%
6 PM
9°
3%
7 PM
8°
3%
8 PM
7°
3%
9 PM
7°
3%
10 PM
6°
3%
11 PM
5°
3%
7-Day Forecast
Today
11° 1°
Mostly Clear with a 78% chance of rain.
Sun
17° 1°
Clear.
Mon
21° 3°
Clear.
Tue
22° 4°
Clear.
Wed
21° 4°
Clear.
Thu
22° 4°
Clear.
Fri
22° 5°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 9° Overcast 78% 12 mph N 89%
1 AM 8° Overcast 58% 10 mph N 87%
2 AM 9° Overcast 18% 10 mph N 85%
3 AM 8° Mostly Cloudy 5% 10 mph N 85%
4 AM 8° Partly Cloudy 5% 10 mph N 85%
5 AM 7° Partly Cloudy 6% 10 mph N 85%
6 AM 6° Partly Cloudy 6% 10 mph N 84%
7 AM 6° Partly Cloudy 3% 11 mph N 82%
8 AM 6° Partly Cloudy 3% 10 mph N 78%
9 AM 6° Mostly Cloudy 3% 10 mph N 73%
10 AM 8° Mostly Cloudy 3% 11 mph N 66%
11 AM 8° Partly Cloudy 3% 11 mph N 60%
12 PM 9° Partly Cloudy 3% 10 mph N 56%
1 PM 10° Mostly Clear 3% 10 mph N 51%
2 PM 10° Clear 3% 9 mph N 49%
3 PM 11° Clear 3% 9 mph N 49%
4 PM 11° Clear 3% 8 mph NNW 49%
5 PM 10° Clear 3% 7 mph NNW 50%
6 PM 9° Clear 3% 6 mph NNW 55%
7 PM 8° Clear 3% 5 mph NNW 60%
8 PM 7° Clear 3% 5 mph NNW 63%
9 PM 7° Clear 3% 5 mph N 65%
10 PM 6° Clear 3% 4 mph N 67%
11 PM 5° Clear 3% 4 mph N 68%
15-Day Forecast
Today
10/17
Mostly Clear
78%
1°
11°
Sun
10/18
Clear
3%
1°
17°
Mon
10/19
Clear
3%
3°
21°
Tue
10/20
Clear
3%
4°
22°
Wed
10/21
Clear
3%
4°
21°
Thu
10/22
Clear
3%
4°
22°
Fri
10/23
Clear
3%
5°
22°
Sat
10/24
Clear
3%
6°
21°
Sun
10/25
Clear
3%
6°
22°
Mon
10/26
Clear
19%
3°
20°
Tue
10/27
Drizzle
60%
7°
19°
Wed
10/28
Clear
60%
6°
19°
Thu
10/29
Drizzle
60%
5°
18°
Fri
10/30
Drizzle
60%
6°
19°
Sat
10/31
Drizzle
60%
7°
17°
31
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
18 AQI 3.4 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 31 Good 31 18
Sun 32 Good 32 2
Mon 23 Good 23 13
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 Sat Oct 17, 03:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 100 110 120 130 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE44 J/kg
MLCAPE24 J/kg
MUCAPE0 J/kg
SBCIN-7 J/kg
MLCIN-1 J/kg
Lifted Index11.6
Kinematics
0–6 km Shear91 kt
0–1 km Shear18 kt
Eff. Shear—
0–1 km SRH-153
0–3 km SRH-27
Eff. SRH—
Storm Motion270° @ 35 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index16.3
Thermo & Levels
PWAT0.81 in
0–3 km LR6.0 °C/km
700–500 LR3.4 °C/km
Total Totals31.9
LCL951 hPa
LFC929 hPa
EL772 hPa
Freezing Lvl4,088 ft