Merrill, Iowa Weather
Toward the solstice glow. Day 88 of spring. Read this microseason across nine climate regions →
Merrill weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Light Drizzle——79°47°—
- TuesdayJun 16Overcast——78°53°-1°
- WednesdayJun 17Light Drizzle54%0.02″84°58°+6°
- ThursdayJun 18Light Drizzle——74°53°-10°
- FridayJun 19Overcast15%—79°51°+5°
- SaturdayJun 20Showers47%0.18″74°60°-5°
- SundayJun 21Showers49%0.37″72°64°-2°
AQI 30 (Good), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 47 — 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 47 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 47
- UV peak
- 5.7 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 47
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:47 AM
- Moonset
- 9:25 PM
- In sign
- ♋︎ Cancer
Toward the solstice glow
Merrill at a glance
- Today vs. normal: 7°F above the seasonal normal for this latitude
- Last frost: May 2 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Merrill
- Mon79°47°5%
- Tue78°53°4%
- Wed84°58°54%
- Thu74°53°3%
- Fri79°51°15%
- Sat74°60°47%
- Sun72°64°49%
- Mon69°62°18%
- Tue73°60°14%
- Wed76°63°17%
- Thu74°59°18%
- Fri77°58°21%
- Sat77°65°32%
- Sun77°59°23%
- Mon64°56°23%
- Tue73°54°29%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Merrill
SPC has placed Merrill in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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 Merrill
- 51038