Rensselaer, Missouri Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Rensselaer weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast15%—91°75°—
- SundayJul 5Heavy Rain13%1.7″85°70°-6°
- MondayJul 6Overcast——83°67°-2°
- TuesdayJul 7Overcast——86°63°+3°
- WednesdayJul 8Overcast——91°65°+5°
- ThursdayJul 9Light Showers41%—86°70°-5°
- FridayJul 10Drizzle41%0.05″88°70°+2°
AQI 37 (Good), driven by PM2.5. AQI up 6 over the last 6 hours (gradual rise). PM2.5 at 8.4 µg/m³, PM10 at 9.7 µg/m³ — typical background levels with no transport signature.
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 now. With UV 6.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 38 around 1 PM.
- Present
- AQI 47
- UV peak
- 6.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 38
PM × Wind × Precip
PM2.5 at 8.4 µg/m³, PM10 at 9.7 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.87
- Wind
- breezy
- 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
- 11:00 PM
- Moonset
- 10:12 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Rensselaer at a glance
- Today vs. normal: 18°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.
16-Day Forecast — Rensselaer
- Sat91°75°15%
- Sun85°70°13%
- Mon83°67°9%
- Tue86°63°2%
- Wed91°65°5%
- Thu86°70°41%
- Fri88°70°41%
- Sat77°63°23%
- Sun79°60°7%
- Mon80°58°5%
- Tue81°57°9%
- Wed85°58°10%
- Thu87°65°19%
- Fri89°69°26%
- Sat81°67°13%
- Sun78°64°11%
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 — Rensselaer
SPC has placed Rensselaer in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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 Rensselaer
- 63401