Arthur, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Arthur weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Drizzle32%0.02″87°66°—
- MondayJul 6Overcast17%—90°68°+3°
- TuesdayJul 7Light Drizzle24%—88°70°-2°
- WednesdayJul 8Drizzle27%—90°70°+2°
- ThursdayJul 9Overcast29%—80°64°-10°
- FridayJul 10Overcast——83°65°+3°
- SaturdayJul 11Light Drizzle10%0.02″89°66°+6°
AQI 31 (Good), driven by PM2.5. AQI down 13 over the last 6 hours (gradual decline). PM2.5 at 6.7 µg/m³, PM10 at 7.8 µg/m³ — typical background levels with no transport signature.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 6.7 µg/m³, PM10 at 7.8 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.86
- Wind
- light
- Recent rain
- 1h 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:42 PM
- Moonset
- 11:34 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Arthur at a glance
- Today vs. normal: 68°F — typical for the season
- Last frost: April 30 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 51431
15-Day Forecast — Arthur
- Sun87°66°32%
- Mon90°68°17%
- Tue88°70°24%
- Wed90°70°27%
- Thu80°64°29%
- Fri83°65°9%
- Sat89°66°10%
- Sun89°66°5%
- Mon91°69°4%
- Tue95°71°6%
- Wed93°65°8%
- Thu94°67°16%
- Fri91°68°16%
- Sat91°67°17%
- Sun98°74°13%
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 — Arthur
SPC includes Arthur in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- 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 Arthur
- 51431