Perth, North Dakota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Perth weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Foggy——76°57°—
- SundayJul 5Light Drizzle42%0.01″84°61°+8°
- MondayJul 6Light Drizzle65%—80°65°-4°
- TuesdayJul 7Light Drizzle49%—66°54°-14°
- WednesdayJul 8Overcast49%—74°52°+8°
- ThursdayJul 9Light Drizzle29%0.02″76°56°+2°
- FridayJul 10Clear29%—73°55°-3°
AQI 23 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 6.3 µg/m³ (AQI 35) with a 0.94 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.
What's driving it
PM × Wind × Precip
PM2.5 at 6.3 µg/m³ (AQI 35) with a 0.94 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.94
- 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
- 11:47 PM
- Moonset
- 10:34 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Perth at a glance
- Today vs. normal: 5°F below the seasonal normal for this latitude
- Last frost: June 7 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 58363
16-Day Forecast — Perth
- Sat76°57°9%
- Sun84°61°42%
- Mon80°65°65%
- Tue66°54°49%
- Wed74°52°49%
- Thu76°56°29%
- Fri73°55°29%
- Sat71°55°29%
- Sun76°52°10%
- Mon86°62°10%
- Tue79°64°13%
- Wed77°54°15%
- Thu75°59°19%
- Fri78°54°10%
- Sat83°58°12%
- Sun87°66°24%
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 — Perth
SPC has placed Perth in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
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 Perth
- 58363