Severe Thunderstorm Watch 10:00 PM Severe Thunderstorm Watch 10:00 PM

Columbia County, Wisconsin, United States

Last updated: 9:11 PM CDT  ·  Refresh
19°C
Feels like 21°
Mostly Clear
▲ 23°  /  ▼ 14°
Wind
5 mph WSW
Humidity
89%
Dew Point
18°
Pressure
28.96 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
19%
Sunrise
6:09 AM
Sunset
7:50 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Columbia County is currently mostly clear at 19°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 924 J/kg) — isolated convective development possible. Sunrise: 6:09AM · Sunset: 7:50PM.

Alerts

Severe Thunderstorm Watch
Expires 10:00 PM
Severe Thunderstorm Watch
Expires 10:00 PM
34 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
33%
10 PM
19°
17%
11 PM
19°
19%
12 AM
18°
21%
1 AM
18°
11%
2 AM
17°
15%
3 AM
16°
17%
4 AM
16°
17%
5 AM
14°
17%
6 AM
14°
8%
7 AM
15°
8%
8 AM
17°
8%
9 AM
18°
8%
10 AM
20°
5%
11 AM
21°
5%
12 PM
22°
5%
1 PM
25°
5%
2 PM
25°
5%
3 PM
25°
5%
4 PM
27°
5%
5 PM
25°
5%
6 PM
24°
3%
7 PM
23°
3%
8 PM
22°
3%
7-Day Forecast
Tonight
23° 14°
Mostly Clear with a 33% chance of rain.
Sat
27° 14°
Mostly Clear with a 21% chance of rain.
Sun
23° 11°
Clear.
Mon
22° 9°
Mostly Cloudy with a 60% chance of rain.
Tue
25° 12°
Drizzle, 64% chance.
Wed
28° 16°
Drizzle, 64% chance.
Thu
27° 15°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 19° Mostly Clear 33% 5 mph WSW 89%
10 PM 19° Mostly Clear 17% 5 mph NW 88%
11 PM 19° Mostly Clear 19% 5 mph WNW 89%
12 AM 18° Mostly Clear 21% 6 mph NW 91%
1 AM 18° Mostly Clear 11% 6 mph NNW 92%
2 AM 17° Mostly Clear 15% 6 mph NW 92%
3 AM 16° Mostly Clear 17% 5 mph NW 92%
4 AM 16° Mostly Clear 17% 5 mph WNW 93%
5 AM 14° Mostly Clear 17% 5 mph WNW 92%
6 AM 14° Mostly Clear 8% 5 mph WNW 92%
7 AM 15° Mostly Clear 8% 5 mph WNW 90%
8 AM 17° Mostly Clear 8% 7 mph WNW 84%
9 AM 18° Clear 8% 8 mph WNW 77%
10 AM 20° Clear 5% 10 mph NW 71%
11 AM 21° Clear 5% 12 mph NW 65%
12 PM 22° Clear 5% 13 mph NW 58%
1 PM 25° Mostly Clear 5% 14 mph NW 52%
2 PM 25° Mostly Clear 5% 13 mph NW 51%
3 PM 25° Mostly Clear 5% 13 mph NW 50%
4 PM 27° Partly Cloudy 5% 12 mph NW 50%
5 PM 25° Mostly Clear 5% 11 mph NW 53%
6 PM 24° Mostly Clear 3% 11 mph NW 56%
7 PM 23° Mostly Clear 3% 10 mph NW 59%
8 PM 22° Mostly Clear 3% 9 mph NNW 58%
15-Day Forecast
Today
8/21
Mostly Clear
33%
14°
23°
Sat
8/22
Mostly Clear
21%
14°
27°
Sun
8/23
Clear
3%
11°
23°
Mon
8/24
Mostly Cloudy
60%
9°
22°
Tue
8/25
Drizzle
64%
12°
25°
Wed
8/26
Drizzle
64%
16°
28°
Thu
8/27
Clear
17%
15°
27°
Fri
8/28
Clear
17%
15°
27°
Sat
8/29
Rain
68%
16°
27°
Sun
8/30
Drizzle
68%
18°
30°
Mon
8/31
Drizzle
90%
16°
29°
Tue
9/1
Drizzle
60%
17°
28°
Wed
9/2
Drizzle
60%
16°
27°
Thu
9/3
Drizzle
60%
15°
26°
Fri
9/4
Clear
60%
14°
27°
34
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
34 AQI 6.2 µg/m³
O3
Ground-level ozone
31 AQI 33 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 34 Good 31 34
Sun 28 Good 28 14
Mon 27 Good 27 8
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 Fri Aug 21, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE509 J/kg
MLCAPE1465 J/kg
MUCAPE2008 J/kg
SBCIN-181 J/kg
MLCIN-64 J/kg
Lifted Index-1.7
Kinematics
0–6 km Shear34 kt
0–1 km Shear18 kt
Eff. Shear31 kt
0–1 km SRH112
0–3 km SRH109
Eff. SRH109
Storm Motion339° @ 23 kt
0–1 km EHI0.4
Composite Parameters
Sig. Tornado0.2
STP (eff)0.5
Supercell3.5
K-Index31.0
Thermo & Levels
PWAT1.37 in
0–3 km LR5.1 °C/km
700–500 LR6.0 °C/km
Total Totals50.6
LCL963 hPa
LFC793 hPa
EL252 hPa
Freezing Lvl12,589 ft