Callao, Missouri Weather
Heat settles and the rain begins. Day 89 of spring. Read this microseason across nine climate regions →
Callao weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Partly Cloudy——77°53°—
- TuesdayJun 16Rain28%0.20″76°59°-1°
- WednesdayJun 17T-storm w/ Hvy Hail80%—85°62°+9°
- ThursdayJun 18Overcast33%—70°59°-15°
- FridayJun 19Overcast——76°56°+6°
- SaturdayJun 20Light Drizzle21%—78°58°+2°
- SundayJun 21Light Showers50%0.38″78°65°0°
AQI 45 (Good), driven by Ozone. AQI up 11 over the last 6 hours (gradual rise). Ozone at AQI 32 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 5 around 1 PM.
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 32 now. With UV 0.0 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 5 around 1 PM.
- Present
- AQI 32
- UV peak
- 0.0 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 5
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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 6:56 AM
- Moonset
- 9:58 PM
- In sign
- ♋︎ Cancer
Heat settles and the rain begins
Callao at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: April 15 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Callao
- Mon77°53°0%
- Tue76°59°28%
- Wed85°62°80%
- Thu70°59°33%
- Fri76°56°2%
- Sat78°58°21%
- Sun78°65°50%
- Mon72°59°50%
- Tue63°60°13%
- Wed77°60°15%
- Thu87°63°25%
- Fri78°62°23%
- Sat77°65°34%
- Sun79°66°29%
- Mon81°66°23%
- Tue82°60°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 16, 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 — Callao
SPC has placed Callao in the Enhanced Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3ENHEnhanced Risk
Numerous severe storms likely. Tornadoes, large hail, and damaging wind gusts possible across the area. Track NWS warnings if storms develop.
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 Callao
- 63534