Markesan, Wisconsin Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Markesan weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——80°66°—
- SundayJul 5Overcast——81°64°+1°
- MondayJul 6Clear——79°59°-2°
- TuesdayJul 7Overcast——80°57°+1°
- WednesdayJul 8Thunderstorm47%0.27″80°63°0°
- ThursdayJul 9Showers51%0.10″72°62°-8°
- FridayJul 10Overcast18%—78°58°+6°
AQI 27 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±4 points). Ozone at AQI 40. Overcast through the UV peak window (cloud cover ~66%) — afternoon ozone should stay flat.
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 40. Overcast through the UV peak window (cloud cover ~66%) — afternoon ozone should stay flat.
- Present
- AQI 40
- UV peak
- 6.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 17
PM × Wind × Precip
PM2.5 at 5.7 µg/m³, PM10 at 6.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.83
- Wind
- light
- Recent rain
- 0h 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
- 10:56 PM
- Moonset
- 9:58 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Markesan at a glance
- Today vs. normal: 11°F above the seasonal normal for this latitude
- Last frost: May 8 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 53946
16-Day Forecast — Markesan
- Sat80°66°9%
- Sun81°64°7%
- Mon79°59°0%
- Tue80°57°2%
- Wed80°63°47%
- Thu72°62°51%
- Fri78°58°18%
- Sat82°61°9%
- Sun67°57°11%
- Mon76°54°9%
- Tue77°58°8%
- Wed78°60°16%
- Thu80°66°7%
- Fri83°67°19%
- Sat83°69°23%
- Sun84°69°32%
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 — Markesan
SPC includes Markesan 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 Markesan
- 53946