Casselton, North Dakota Weather
Cicadas claim the afternoon. Day 15 of summer. Read this microseason across nine climate regions →
Casselton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Mostly Clear——87°63°—
- MondayJul 6Overcast20%—90°65°+3°
- TuesdayJul 7Overcast63%—78°65°-12°
- WednesdayJul 8Drizzle69%—79°60°+1°
- ThursdayJul 9Overcast——83°57°+4°
- FridayJul 10Overcast15%—85°63°+2°
- SaturdayJul 11Light Drizzle——97°67°+12°
AQI 38 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 63 — peak already passed at 1 PM under clear 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 63 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 63
- UV peak
- 6.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 63
PM × Wind × Precip
PM2.5 at 9.3 µg/m³, PM10 at 12.4 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.75
- 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
- 11:52 PM
- Moonset
- 11:40 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Casselton at a glance
- Today vs. normal: 22°F above the seasonal normal for this latitude
- Last frost: May 27 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 58012
16-Day Forecast — Casselton
- Sun87°63°0%
- Mon90°65°20%
- Tue78°65°63%
- Wed79°60°69%
- Thu83°57°4%
- Fri85°63°15%
- Sat97°67°7%
- Sun84°64°15%
- Mon84°56°7%
- Tue85°61°11%
- Wed93°60°16%
- Thu95°67°11%
- Fri101°71°19%
- Sat105°74°19%
- Sun88°65°13%
- Mon107°67°15%
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 — Casselton
SPC has placed Casselton in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- 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 Casselton
- 58012