Thompson, Iowa Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Thompson weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast22%—80°65°—
- SundayJul 5Heavy Rain29%0.55″83°65°+3°
- MondayJul 6Light Drizzle——84°66°+1°
- TuesdayJul 7Overcast15%—84°65°0°
- WednesdayJul 8Thunderstorm50%0.04″79°67°-5°
- ThursdayJul 9Overcast50%—79°59°0°
- FridayJul 10Light Drizzle——76°60°-3°
AQI 37 (Good), driven by Ozone. AQI up 6 over the last 6 hours (gradual rise). Ozone at AQI 48 — 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 48 — peak already passed at 1 PM under overcast skies. Levels should ease through evening.
- Present
- AQI 48
- UV peak
- 2.6 at earlier today
- Sky at peak
- overcast
- Projected peak
- AQI 48
PM × Wind × Precip
PM2.5 at 6.9 µg/m³, PM10 at 8.9 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.78
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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
- 11:15 PM
- Moonset
- 10:17 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Thompson at a glance
- Today vs. normal: 10°F above the seasonal normal for this latitude
- Last frost: May 6 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 50478
16-Day Forecast — Thompson
- Sat84°65°22%
- Sun83°65°29%
- Mon84°66°2%
- Tue84°65°15%
- Wed79°67°50%
- Thu79°59°50%
- Fri76°60°8%
- Sat76°55°10%
- Sun77°57°7%
- Mon79°58°9%
- Tue81°60°5%
- Wed82°62°13%
- Thu84°67°16%
- Fri81°63°26%
- Sat70°59°19%
- Sun77°61°23%
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 — Thompson
SPC includes Thompson 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 Thompson
- 50478