Lake Arrowhead, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Lake Arrowhead weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast16%—80°65°—
- SundayJul 5Overcast——81°64°+1°
- MondayJul 6Clear——81°59°0°
- TuesdayJul 7Overcast——84°62°+3°
- WednesdayJul 8Thunderstorm55%0.06″74°68°-10°
- ThursdayJul 9Overcast55%—77°63°+3°
- FridayJul 10Drizzle14%—73°61°-4°
AQI 32 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 45 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
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 45 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 45
- UV peak
- 3.8 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 45
PM × Wind × Precip
PM2.5 at 7.8 µg/m³ (AQI 43) with a 0.82 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.82
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:00 PM
- Moonset
- 10:01 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Lake Arrowhead at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: May 11 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Lake Arrowhead
- Sat80°65°16%
- Sun81°64°5%
- Mon81°59°1%
- Tue84°62°4%
- Wed74°68°55%
- Thu77°63°55%
- Fri73°61°14%
- Sat77°57°10%
- Sun78°54°11%
- Mon78°55°11%
- Tue83°60°8%
- Wed82°65°19%
- Thu83°63°26%
- Fri84°64°30%
- Sat69°59°30%
- Sun78°52°26%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Lake Arrowhead
SPC includes Lake Arrowhead in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3NONENo severe risk
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 Lake Arrowhead
- 54457