Cape Girardeau, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Cape Girardeau weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Drizzle18%0.02″91°70°—
- SundayJul 5Heavy Rain41%0.70″88°70°-3°
- MondayJul 6Overcast33%—85°70°-3°
- TuesdayJul 7Overcast20%—87°64°+2°
- WednesdayJul 8Clear15%—89°66°+2°
- ThursdayJul 9Overcast20%—94°69°+5°
- FridayJul 10Light Drizzle41%—93°76°-1°
AQI 39 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 58. Overcast through the UV peak window (cloud cover ~70%) — afternoon ozone should stay flat.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 58. Overcast through the UV peak window (cloud cover ~70%) — afternoon ozone should stay flat.
- Present
- AQI 58
- UV peak
- 8.9 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 34
PM × Wind × Precip
PM2.5 at 10.5 µg/m³, PM10 at 12.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.85
- 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
- 10:49 PM
- Moonset
- 10:07 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Cape Girardeau at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: March 31 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 63701, 63703
16-Day Forecast — Cape Girardeau
- Sat91°70°18%
- Sun88°70°41%
- Mon85°70°33%
- Tue87°64°20%
- Wed89°66°15%
- Thu94°69°20%
- Fri93°76°41%
- Sat90°69°24%
- Sun81°63°15%
- Mon82°59°7%
- Tue83°62°9%
- Wed86°61°10%
- Thu88°65°13%
- Fri89°69°10%
- Sat81°69°23%
- Sun82°66°20%
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 — Cape Girardeau
SPC has placed Cape Girardeau in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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 Cape Girardeau
- 63701
- 63703