Algonquin, Maryland Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Algonquin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain32%0.72″101°75°—
- SundayJul 5Drizzle20%0.02″95°74°-6°
- MondayJul 6Drizzle72%—90°73°-5°
- TuesdayJul 7Thunderstorm72%—83°69°-7°
- WednesdayJul 8Light Drizzle36%—81°67°-2°
- ThursdayJul 9Overcast——93°66°+12°
- FridayJul 10Drizzle34%0.11″99°73°+6°
AQI 145 (Unhealthy for Sensitive Groups), driven by Ozone. AQI up 21 in the last 6 hours — air quality is degrading. Ozone at AQI 96. Overcast through the UV peak window (cloud cover ~87%) — afternoon ozone should stay flat.
CAUTION Sensitive groups (children, elderly, respiratory conditions) should limit prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 96. Overcast through the UV peak window (cloud cover ~87%) — afternoon ozone should stay flat.
- Present
- AQI 96
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 12
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 15.0 µg/m³, PM10 to 17.1 µg/m³.
- PM2.5/PM10
- 0.88
- Wind
- breezy
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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
- 11:20 PM
- Moonset
- 11:14 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Algonquin at a glance
- Today vs. normal: 5°F above the seasonal normal for this latitude
- Last frost: April 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Algonquin
- Sat101°82°32%
- Sun98°76°20%
- Mon90°73°72%
- Tue83°69°72%
- Wed81°67°36%
- Thu93°66°9%
- Fri99°73°34%
- Sat83°70°34%
- Sun81°67°25%
- Mon87°62°18%
- Tue87°65°16%
- Wed92°69°24%
- Thu90°68°30%
- Fri93°69°39%
- Sat87°72°39%
- Sun94°70°46%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Algonquin
SPC has placed Algonquin in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWSLGTSlight Risk
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 Algonquin
- 21613