Thayer, Iowa Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Thayer weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Light Showers73%0.06″84°70°—
- SundayJul 5Overcast——90°68°+6°
- MondayJul 6Light Rain—0.05″90°67°0°
- TuesdayJul 7Overcast——84°65°-6°
- WednesdayJul 8T-storm w/ Hail32%—88°67°+4°
- ThursdayJul 9Thunderstorm49%0.03″78°68°-10°
- FridayJul 10Light Drizzle25%—81°67°+3°
AQI 40 (Good), driven by PM2.5. AQI up 9 over the last 6 hours (gradual rise). PM2.5 at 5.5 µg/m³ (AQI 31) with a 0.87 fine-to-coarse ratio and 2 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
PM × Wind × Precip
PM2.5 at 5.5 µg/m³ (AQI 31) with a 0.87 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- Wind
- calm
- 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
- 11:35 PM
- Moonset
- 11:29 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Thayer at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: April 22 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 50254
16-Day Forecast — Thayer
- Sat84°70°73%
- Sun90°68°9%
- Mon90°67°1%
- Tue84°65°1%
- Wed88°67°32%
- Thu78°68°49%
- Fri81°67°25%
- Sat77°65°9%
- Sun77°61°5%
- Mon82°61°2%
- Tue87°67°6%
- Wed83°68°7%
- Thu90°73°19%
- Fri93°73°13%
- Sat91°74°14%
- Sun87°67°13%
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 — Thayer
SPC includes Thayer in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3NONENo severe risk
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 Thayer
- 50254