Mercer, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Mercer weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast18%—81°61°—
- SundayJul 5Heavy Drizzle25%0.04″81°58°0°
- MondayJul 6Overcast——85°59°+4°
- TuesdayJul 7Heavy Drizzle47%—88°61°+3°
- WednesdayJul 8Heavy Showers57%1.1″68°59°-20°
- ThursdayJul 9Overcast54%—79°53°+11°
- FridayJul 10Overcast12%—82°54°+3°
AQI 47 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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
- 11:04 PM
- Moonset
- 9:59 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Mercer at a glance
- Today vs. normal: 64°F — typical for the season
- Last frost: May 23 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 54547
16-Day Forecast — Mercer
- Sat81°61°18%
- Sun81°58°25%
- Mon85°59°3%
- Tue88°61°47%
- Wed68°59°57%
- Thu79°53°54%
- Fri82°54°12%
- Sat75°58°20%
- Sun69°51°10%
- Mon77°51°13%
- Tue83°57°14%
- Wed79°60°20%
- Thu85°57°23%
- Fri87°59°19%
- Sat88°62°19%
- Sun89°64°26%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Mercer
SPC includes Mercer 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 Mercer
- 54547