Calmar, Iowa Weather
Toward the solstice glow. Day 88 of spring. Read this microseason across nine climate regions →
Calmar weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 15Overcast——74°49°—
- TuesdayJun 16Light Rain11%0.07″68°53°-6°
- WednesdayJun 17T-storm w/ Hvy Hail97%0.28″74°54°+6°
- ThursdayJun 18Drizzle17%—68°50°-6°
- FridayJun 19Overcast——67°47°-1°
- SaturdayJun 20Light Rain20%0.13″65°53°-2°
- SundayJun 21Rain40%1.2″62°58°-3°
AQI 33 (Good), driven by Ozone. AQI up 15 in the last 6 hours — air quality is degrading. Ozone at AQI 44 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 44 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 44
- UV peak
- 3.3 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 44
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 5:26 AM
- Moonset
- 9:09 PM
- In sign
- ♋︎ Cancer
Toward the solstice glow
Calmar at a glance
- Today vs. normal: 74°F — typical for the season
- Last frost: May 5 (climatological average for this latitude)
- Microseason: Jun 11–15
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Calmar
- Mon74°49°3%
- Tue68°53°11%
- Wed74°54°97%
- Thu68°50°17%
- Fri67°47°5%
- Sat65°53°20%
- Sun62°58°40%
- Mon59°55°24%
- Tue65°53°6%
- Wed72°57°12%
- Thu72°54°19%
- Fri75°56°27%
- Sat68°61°26%
- Sun75°59°29%
- Mon67°56°42%
- Tue69°48°42%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 15, 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 — Calmar
SPC has placed Calmar in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal Risk
- DAY 3MRGLMarginal Risk
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 Calmar
- 52132