Nashua, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Nashua weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast17%—83°65°—
- MondayJul 6Clear——85°64°+2°
- TuesdayJul 7Overcast——82°64°-3°
- WednesdayJul 8Overcast58%—83°66°+1°
- ThursdayJul 9Light Showers59%0.03″77°68°-6°
- FridayJul 10Overcast21%—77°65°0°
- SaturdayJul 11Overcast——78°63°+1°
AQI 34 (Good), driven by Ozone. AQI up 8 over the last 6 hours (gradual rise). Ozone at AQI 36 — peak already passed at 1 PM under overcast 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 36 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 36
- UV peak
- 2.4 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 36
PM × Wind × Precip
PM2.5 at 4.6 µg/m³ (AQI 26) with a 0.96 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.96
- 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
- 11:31 PM
- Moonset
- 11:21 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Nashua at a glance
- Today vs. normal: 14°F above the seasonal normal for this latitude
- Last frost: May 4 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 50658
16-Day Forecast — Nashua
- Sun83°65°17%
- Mon85°64°2%
- Tue82°64°1%
- Wed83°66°58%
- Thu77°68°59%
- Fri77°65°21%
- Sat78°63°7%
- Sun86°66°4%
- Mon76°61°5%
- Tue74°57°7%
- Wed76°59°10%
- Thu78°63°27%
- Fri85°62°24%
- Sat86°68°17%
- Sun89°70°26%
- Mon88°73°23%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 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 — Nashua
SPC includes Nashua in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- 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.
ZIP codes in Nashua
- 50658