Guernsey, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Guernsey weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain69%1.5″85°67°—
- SundayJul 5Overcast12%—85°67°0°
- MondayJul 6Partly Cloudy——86°67°+1°
- TuesdayJul 7Light Drizzle——83°65°-3°
- WednesdayJul 8T-storm w/ Hail35%—86°66°+3°
- ThursdayJul 9Light Showers43%0.01″77°65°-9°
- FridayJul 10Partly Cloudy13%—81°66°+4°
AQI 42 (Good), driven by Ozone. AQI up 12 over the last 6 hours (gradual rise). Ozone at AQI 30 now. With UV 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 7 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 0.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 7 around 1 PM.
- Present
- AQI 30
- UV peak
- 0.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 7
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
- 11:29 PM
- Moonset
- 11:21 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Guernsey at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 26 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 52221
16-Day Forecast — Guernsey
- Sat85°67°69%
- Sun85°67°12%
- Mon86°67°4%
- Tue83°65°1%
- Wed86°66°35%
- Thu77°65°43%
- Fri81°66°13%
- Sat74°64°9%
- Sun76°56°9%
- Mon82°59°6%
- Tue85°67°5%
- Wed85°67°9%
- Thu86°69°19%
- Fri89°73°16%
- Sat90°76°13%
- Sun83°63°16%
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 — Guernsey
SPC includes Guernsey in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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 Guernsey
- 52221