Montpelier, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Montpelier weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Foggy45%—86°69°—
- SundayJul 5Overcast18%—86°70°0°
- MondayJul 6Mostly Clear——82°65°-4°
- TuesdayJul 7Clear——81°62°-1°
- WednesdayJul 8Overcast10%—84°63°+3°
- ThursdayJul 9Light Drizzle37%—80°69°-4°
- FridayJul 10Overcast22%—82°65°+2°
AQI 26 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 7.4 µg/m³ (AQI 41) with a 0.73 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 during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 37 now. With UV 1.7 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 6 around 1 PM.
- Present
- AQI 37
- UV peak
- 1.7 at 1 PM
- Sky at peak
- partly cloudy
- Projected peak
- AQI 6
PM × Wind × Precip
PM2.5 at 7.4 µg/m³ (AQI 41) with a 0.73 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.73
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:59 PM
- Moonset
- 10:08 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Montpelier at a glance
- Today vs. normal: 8°F above the seasonal normal for this latitude
- Last frost: April 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 52759
16-Day Forecast — Montpelier
- Sat86°69°45%
- Sun86°70°18%
- Mon82°65°3%
- Tue81°62°1%
- Wed84°63°10%
- Thu80°69°37%
- Fri82°65°22%
- Sat85°66°16%
- Sun69°58°9%
- Mon75°56°7%
- Tue77°61°6%
- Wed81°65°10%
- Thu81°67°19%
- Fri82°68°19%
- Sat84°70°19%
- Sun86°72°29%
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 — Montpelier
SPC has placed Montpelier in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe 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 Montpelier
- 52761
- 52726
- 52759