Malvern, Iowa Weather
Prairie lightning bugs rise. Day 78 of spring. Read this microseason across nine climate regions →
Malvern weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Heavy Showers90%1.6″79°67°—
- FridayJun 5Thunderstorm38%—81°67°+2°
- SaturdayJun 6Thunderstorm41%0.96″85°68°+4°
- SundayJun 7Light Drizzle66%—78°69°-7°
- MondayJun 8Thunderstorm37%—87°65°+9°
- TuesdayJun 9Thunderstorm17%—92°74°+5°
- WednesdayJun 10Thunderstorm17%—94°75°+2°
AQI 38 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 6.2 µg/m³ (AQI 34) with a 0.95 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
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 33. Overcast through the UV peak window (cloud cover ~87%) — afternoon ozone should stay flat.
- Present
- AQI 33
- UV peak
- 0.0 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 6.2 µg/m³ (AQI 34) with a 0.95 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.95
- 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).
The higher the clouds, the finer the weather.
- Moonrise
- 5:26 AM
- Moonset
- 3:28 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Malvern at a glance
- Today vs. normal: 7°F below the seasonal normal for this latitude
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Peak growing season
As of June 5, 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 — Malvern
SPC has placed Malvern in the Slight Risk category for severe thunderstorms tomorrow.
- TODAYMRGLMarginal Risk
- TOMORROWSLGTSlight Risk
- 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.