Merwin, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Merwin weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Rain51%0.11″86°72°—
- SundayJul 5Drizzle18%0.03″90°68°+4°
- MondayJul 6Overcast14%—85°68°-5°
- TuesdayJul 7Partly Cloudy——86°66°+1°
- WednesdayJul 8Overcast——90°69°+4°
- ThursdayJul 9Overcast36%—92°74°+2°
- FridayJul 10Thunderstorm45%—88°73°-4°
AQI 44 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM scrubbed by 2 hours of recent rain — PM2.5 down to 10.1 µg/m³, PM10 to 13.1 µg/m³.
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. Overcast through the UV peak window (cloud cover ~95%) — afternoon ozone should stay flat.
- Present
- AQI 47
- UV peak
- 6.9 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 22
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 10.1 µg/m³, PM10 to 13.1 µg/m³.
- PM2.5/PM10
- 0.77
- Wind
- windy
- Recent rain
- 2h in last 6h
- Pattern
- washed out
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
- 11:11 PM
- Moonset
- 10:26 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Merwin at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: April 6 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Merwin
- Sat86°72°51%
- Sun90°68°18%
- Mon85°68°14%
- Tue86°66°3%
- Wed90°69°3%
- Thu92°74°36%
- Fri88°73°45%
- Sat80°66°18%
- Sun79°60°7%
- Mon79°59°4%
- Tue81°60°5%
- Wed85°61°13%
- Thu85°63°6%
- Fri87°70°10%
- Sat85°69°11%
- Sun79°63°14%
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 — Merwin
SPC has placed Merwin 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 Merwin
- 64723