Superior, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Superior weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Drizzle17%0.05″79°67°—
- SundayJul 5Overcast16%—86°64°+7°
- MondayJul 6Overcast——88°67°+2°
- TuesdayJul 7T-storm w/ Hail27%—88°66°0°
- WednesdayJul 8Thunderstorm43%—79°65°-9°
- ThursdayJul 9Overcast24%—74°60°-5°
- FridayJul 10Light Drizzle——82°61°+8°
AQI 45 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.9 µg/m³ (AQI 38) with a 0.83 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
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 32 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 8 around 1 PM.
- Present
- AQI 32
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 8
PM × Wind × Precip
PM2.5 at 6.9 µg/m³ (AQI 38) with a 0.83 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.83
- Wind
- calm
- 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
- 11:41 PM
- Moonset
- 11:32 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Superior at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: May 7 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 51363
16-Day Forecast — Superior
- Sat79°67°17%
- Sun86°64°16%
- Mon88°67°3%
- Tue88°66°27%
- Wed79°65°43%
- Thu74°60°24%
- Fri82°61°5%
- Sat76°61°9%
- Sun77°59°5%
- Mon86°64°6%
- Tue82°66°6%
- Wed81°64°13%
- Thu93°71°16%
- Fri87°71°25%
- Sat85°61°26%
- Sun78°59°12%
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 — Superior
SPC includes Superior 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 Superior
- 51363