Hamilton, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Hamilton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Heavy Rain40%0.78″82°68°—
- SundayJul 5Overcast11%—89°69°+7°
- MondayJul 6Overcast——84°67°-5°
- TuesdayJul 7Partly Cloudy——85°65°+1°
- WednesdayJul 8Overcast——89°66°+4°
- ThursdayJul 9Drizzle32%—82°72°-7°
- FridayJul 10Light Drizzle32%—84°70°+2°
AQI 41 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 61. Overcast through the UV peak window (cloud cover ~100%) — 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 61. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 61
- UV peak
- 5.8 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 24
PM × Wind × Precip
PM2.5 at 11.5 µg/m³ (AQI 55) with a 0.75 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.75
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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
- 11:10 PM
- Moonset
- 10:22 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Hamilton at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 14 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 64644
16-Day Forecast — Hamilton
- Sat82°68°40%
- Sun89°69°11%
- Mon84°67°7%
- Tue85°65°1%
- Wed89°66°7%
- Thu82°72°32%
- Fri84°70°32%
- Sat78°62°11%
- Sun79°59°6%
- Mon80°58°5%
- Tue80°60°5%
- Wed84°57°9%
- Thu86°64°10%
- Fri84°73°10%
- Sat86°65°6%
- Sun77°61°13%
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 — Hamilton
SPC includes Hamilton in the general thunderstorm area today — no severe risk, but storms are possible.
- 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 Hamilton
- 64644