Sauk County, Wisconsin, United States

Last updated: 9:04 PM CDT  ·  Refresh
29°C
Feels like 32°
Clear
▲ 36°  /  ▼ 19°
Wind
10 mph NW
Humidity
68%
Dew Point
20°
Pressure
28.55 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
3%
Sunrise
5:44 AM
Sunset
8:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Sauk County is currently clear at 29°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1350 J/kg) — isolated convective development possible. Sunrise: 5:44AM · Sunset: 8:27PM.

Alerts

No active alerts for this location.
52 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
3%
10 PM
27°
21%
11 PM
26°
21%
12 AM
24°
14%
1 AM
23°
3%
2 AM
23°
3%
3 AM
22°
3%
4 AM
21°
3%
5 AM
19°
3%
6 AM
19°
3%
7 AM
19°
3%
8 AM
20°
3%
9 AM
21°
3%
10 AM
23°
3%
11 AM
24°
3%
12 PM
26°
3%
1 PM
28°
3%
2 PM
28°
3%
3 PM
29°
3%
4 PM
31°
3%
5 PM
31°
3%
6 PM
30°
3%
7 PM
29°
3%
8 PM
28°
3%
7-Day Forecast
Tonight
36° 19°
Clear.
Tue
31° 18°
Mostly Clear.
Wed
31° 17°
Clear with a 28% chance of rain.
Thu
36° 19°
Overcast with a 26% chance of rain.
Fri
31° 17°
Rain, 76% chance.
Sat
35° 16°
Drizzle, 71% chance.
Sun
33° 14°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 29° Clear 3% 10 mph NW 68%
10 PM 27° Clear 21% 11 mph N 72%
11 PM 26° Mostly Clear 21% 10 mph N 77%
12 AM 24° Partly Cloudy 14% 9 mph N 82%
1 AM 23° Partly Cloudy 3% 10 mph NNE 86%
2 AM 23° Partly Cloudy 3% 10 mph NNE 87%
3 AM 22° Mostly Cloudy 3% 9 mph NNE 88%
4 AM 21° Mostly Cloudy 3% 9 mph NNE 89%
5 AM 19° Mostly Cloudy 3% 8 mph NNE 88%
6 AM 19° Partly Cloudy 3% 8 mph NE 87%
7 AM 19° Partly Cloudy 3% 9 mph NE 84%
8 AM 20° Partly Cloudy 3% 9 mph NE 77%
9 AM 21° Mostly Clear 3% 8 mph NNE 70%
10 AM 23° Mostly Clear 3% 8 mph NNE 63%
11 AM 24° Clear 3% 7 mph NE 57%
12 PM 26° Clear 3% 6 mph NE 51%
1 PM 28° Clear 3% 6 mph NE 45%
2 PM 28° Clear 3% 5 mph NE 44%
3 PM 29° Clear 3% 5 mph NE 42%
4 PM 31° Clear 3% 5 mph NE 42%
5 PM 31° Clear 3% 5 mph NE 46%
6 PM 30° Mostly Clear 3% 5 mph ENE 50%
7 PM 29° Mostly Clear 3% 5 mph ENE 55%
8 PM 28° Partly Cloudy 3% 4 mph ESE 58%
15-Day Forecast
Today
7/27
Clear
3%
19°
36°
Tue
7/28
Mostly Clear
14%
18°
31°
Wed
7/29
Clear
28%
17°
31°
Thu
7/30
Overcast
26%
19°
36°
Fri
7/31
Rain
76%
17°
31°
Sat
8/1
Drizzle
71%
16°
35°
Sun
8/2
Clear
8%
14°
33°
Mon
8/3
Clear
17%
14°
34°
Tue
8/4
Drizzle
44%
17°
36°
Wed
8/5
Rain
68%
17°
36°
Thu
8/6
Rain
64%
16°
29°
Fri
8/7
Drizzle
60%
15°
32°
Sat
8/8
Drizzle
60%
16°
33°
Sun
8/9
Drizzle
60%
17°
33°
Mon
8/10
Drizzle
60%
17°
34°
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 9.4 µg/m³
O3
Ground-level ozone
44 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 52 Moderate 44 52
Wed 40 Good 32 40
Thu 56 Moderate 36 56
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 90 100 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1092 J/kg
MLCAPE1013 J/kg
MUCAPE1142 J/kg
SBCIN-236 J/kg
MLCIN0 J/kg
Lifted Index-3.6
Kinematics
0–6 km Shear43 kt
0–1 km Shear11 kt
Eff. Shear42 kt
0–1 km SRH-40
0–3 km SRH-87
Eff. SRH-87
Storm Motion291° @ 30 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.6
Thermo & Levels
PWAT1.46 in
0–3 km LR6.1 °C/km
700–500 LR6.2 °C/km
Total Totals49.7
LCL853 hPa
LFC753 hPa
EL230 hPa
Freezing Lvl15,656 ft