Mason, Wisconsin Weather
Toward the solstice glow. Day 86 of spring. Read this microseason across nine climate regions →
Mason weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 13Overcast——66°55°—
- SundayJun 14Overcast——67°50°+1°
- MondayJun 15Showers41%0.14″71°46°+4°
- TuesdayJun 16Overcast16%—66°45°-5°
- WednesdayJun 17Overcast42%—67°45°+1°
- ThursdayJun 18Light Drizzle41%0.02″68°43°+1°
- FridayJun 19Drizzle—0.03″73°45°+5°
AQI 35 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 30 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 9 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 30 now. With UV 3.3 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 9 around 1 PM.
- Present
- AQI 30
- UV peak
- 3.3 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 9
PM × Wind × Precip
PM2.5 at 4.8 µg/m³, PM10 at 5.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 3:20 AM
- Moonset
- —
- In sign
- ♉︎ Taurus
Toward the solstice glow
Mason at a glance
- Today vs. normal: 11°F below the seasonal normal for this latitude
- Last frost: May 25 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Prune spring-blooming shrubs after flowers fade.
15-Day Forecast — Mason
- Sat65°55°4%
- Sun67°50°3%
- Mon71°46°41%
- Tue66°45°16%
- Wed67°45°42%
- Thu68°43°41%
- Fri73°45°6%
- Sat68°49°20%
- Sun63°41°16%
- Mon62°38°10%
- Tue75°44°14%
- Wed77°56°35%
- Thu70°53°30%
- Fri68°51°30%
- Sat70°50°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 13, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Mason
SPC has placed Mason in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Mason
- 54856