Irena, Missouri Weather
Dusk arrives one minute earlier each night. Day 43 of summer. Read this microseason across nine climate regions →
Irena weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayAug 2Clear——85°63°—
- MondayAug 3Overcast——86°64°+1°
- TuesdayAug 4Overcast——93°64°+7°
- WednesdayAug 5Light Showers60%0.02″92°66°-1°
- ThursdayAug 6Drizzle60%—89°62°-3°
- FridayAug 7Overcast17%—93°67°+4°
- SaturdayAug 8Clear10%—100°70°+7°
AQI 37 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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).
Red sky at night, sailor's delight.
- Moonrise
- 10:01 PM
- Moonset
- 10:23 AM
- In sign
- ♓︎ Pisces
Dusk arrives one minute earlier each night
Irena at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: April 19 (climatological average for this latitude)
- Microseason: Aug 1–5
- Planting window: Sow fall peas. Start kale and collard seedlings for fall.
16-Day Forecast — Irena
- Sun85°63°0%
- Mon86°64°0%
- Tue93°64°6%
- Wed92°66°60%
- Thu89°62°60%
- Fri93°67°17%
- Sat100°70°10%
- Sun101°76°8%
- Mon103°72°11%
- Tue101°74°13%
- Wed105°80°21%
- Thu108°72°26%
- Fri106°75°33%
- Sat95°69°29%
- Sun102°65°30%
- Mon97°65°31%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of August 2, 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 — Irena
SPC includes Irena in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- 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.
Sun & seasons in Irena
Irena sits in Worth County, where the year’s longest day runs 15h 4m of daylight and its shortest just 9h 16m — a swing of +5h 48m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
St. Louis, the state’s largest city, lies about 257 miles to the ESE. The nearest town Irena tracks is Savannah, roughly 48 miles to the SSW.
ZIP codes in Irena
- 64456