Calamus, Iowa Weather
Prairie lightning bugs rise. Day 78 of spring. Read this microseason across nine climate regions →
Calamus weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 5Thunderstorm89%0.56″80°67°—
- SaturdayJun 6Showers35%0.06″83°68°+3°
- SundayJun 7Showers64%0.04″79°69°-4°
- MondayJun 8Light Showers77%0.01″79°68°0°
- TuesdayJun 9Thunderstorm51%—85°67°+6°
- WednesdayJun 10Thunderstorm15%0.18″89°72°+4°
- ThursdayJun 11Thunderstorm——89°74°0°
AQI 44 (Good), driven by PM2.5. AQI down 25 over the last 6 hours — air quality is improving sharply. PM scrubbed by 3 hours of recent rain — PM2.5 down to 7.4 µg/m³, PM10 to 8.2 µg/m³.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM scrubbed by 3 hours of recent rain — PM2.5 down to 7.4 µg/m³, PM10 to 8.2 µg/m³.
- PM2.5/PM10
- 0.90
- Wind
- light
- Recent rain
- 3h in last 6h
- Pattern
- washed out
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
- 5:08 AM
- Moonset
- 3:06 PM
- In sign
- ♒︎ Aquarius
Prairie lightning bugs rise
Calamus at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: April 27 (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 — Calamus
SPC has placed Calamus in the Slight Risk category for severe thunderstorms today.
- TODAYSLGTSlight Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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.