Town of Grafton, Wisconsin

Last updated: 4:29 PM CDT  ·  Refresh
19°C
Feels like 19°
Clear
▲ 19°  /  ▼ 12°
Wind
4 mph E
Humidity
73%
Dew Point
13°
Pressure
29.33 inHg
Visibility
9 mi
UV Index
5.1
Cloud Cover
9%
Sunrise
6:45 AM
Sunset
6:37 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Town of Grafton is currently clear at 19°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:45AM · Sunset: 6:37PM.

Alerts

No active alerts for this location.
41 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
19°
6%
5 PM
18°
3%
6 PM
17°
4%
7 PM
16°
5%
8 PM
15°
5%
9 PM
14°
6%
10 PM
14°
7%
11 PM
14°
7%
12 AM
13°
7%
1 AM
13°
7%
2 AM
12°
7%
3 AM
12°
7%
4 AM
12°
7%
5 AM
12°
7%
6 AM
12°
3%
7 AM
12°
16%
8 AM
12°
16%
9 AM
14°
3%
10 AM
14°
3%
11 AM
16°
3%
12 PM
17°
3%
1 PM
17°
3%
2 PM
17°
6%
3 PM
17°
6%
7-Day Forecast
Today
19° 12°
Clear.
Tue
19° 12°
Fog.
Wed
20° 16°
Rain, 90% chance.
Thu
20° 14°
Overcast with a 90% chance of rain.
Fri
17° 12°
Clear with a 60% chance of rain.
Sat
16° 12°
Drizzle, 51% chance.
Sun
16° 8°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 19° Clear 6% 4 mph E 73%
5 PM 18° Clear 3% 4 mph E 74%
6 PM 17° Clear 4% 3 mph E 81%
7 PM 16° Clear 5% 3 mph E 83%
8 PM 15° Clear 5% 2 mph E 84%
9 PM 14° Clear 6% 2 mph NW 85%
10 PM 14° Clear 7% 3 mph WSW 86%
11 PM 14° Clear 7% 3 mph WSW 86%
12 AM 13° Clear 7% 4 mph W 86%
1 AM 13° Clear 7% 4 mph W 86%
2 AM 12° Partly Cloudy 7% 4 mph WSW 85%
3 AM 12° Partly Cloudy 7% 3 mph SW 83%
4 AM 12° Partly Cloudy 7% 3 mph SW 82%
5 AM 12° Partly Cloudy 7% 4 mph SW 82%
6 AM 12° Clear 3% 4 mph SW 81%
7 AM 12° Fog 16% 4 mph WSW 87%
8 AM 12° Fog 16% 4 mph SW 85%
9 AM 14° Fog 3% 4 mph SSW 83%
10 AM 14° Haze 3% 4 mph SSW 93%
11 AM 16° Mostly Cloudy 3% 5 mph SSW 87%
12 PM 17° Mostly Cloudy 3% 6 mph S 80%
1 PM 17° Mostly Cloudy 3% 7 mph S 78%
2 PM 17° Mostly Cloudy 6% 8 mph S 74%
3 PM 17° Partly Cloudy 6% 9 mph S 76%
15-Day Forecast
Today
9/28
Clear
7%
12°
19°
Tue
9/29
Fog
16%
12°
19°
Wed
9/30
Rain
90%
16°
20°
Thu
10/1
Overcast
90%
14°
20°
Fri
10/2
Clear
60%
12°
17°
Sat
10/3
Drizzle
51%
12°
16°
Sun
10/4
Clear
14%
8°
16°
Mon
10/5
Clear
25%
7°
16°
Tue
10/6
Clear
25%
7°
14°
Wed
10/7
Rain
68%
11°
21°
Thu
10/8
Drizzle
60%
9°
20°
Fri
10/9
Drizzle
60%
8°
16°
Sat
10/10
Drizzle
60%
8°
16°
Sun
10/11
Drizzle
60%
9°
16°
Mon
10/12
Clear
25%
8°
16°
41
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
41 AQI 7.3 µg/m³
O3
Ground-level ozone
38 AQI 42 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Tue 41 Good 38 41
Wed 55 Moderate 39 55
Thu 64 Moderate 28 64
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 Sep 28, 20:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2 J/kg
MLCAPE22 J/kg
MUCAPE0 J/kg
SBCIN-0 J/kg
MLCIN0 J/kg
Lifted Index6.8
Kinematics
0–6 km Shear8 kt
0–1 km Shear7 kt
Eff. Shear—
0–1 km SRH29
0–3 km SRH25
Eff. SRH—
Storm Motion34° @ 21 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index20.7
Thermo & Levels
PWAT0.78 in
0–3 km LR4.8 °C/km
700–500 LR5.6 °C/km
Total Totals39.6
LCL904 hPa
LFC993 hPa
EL971 hPa
Freezing Lvl12,106 ft