Knife River, Minnesota Weather
Cicadas claim the afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Knife River weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast44%—69°58°—
- SundayJul 5Light Drizzle14%0.03″68°57°-1°
- MondayJul 6Overcast14%—66°53°-2°
- TuesdayJul 7Showers45%0.23″81°59°+15°
- WednesdayJul 8Heavy Showers57%1.8″67°56°-14°
- ThursdayJul 9Overcast44%—61°54°-6°
- FridayJul 10Light Drizzle——71°52°+10°
AQI 41 (Good), driven by Ozone. AQI down 6 over the last 6 hours (gradual decline). Ozone at AQI 31. Overcast through the UV peak window (cloud cover ~87%) — afternoon ozone should stay flat.
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 31. Overcast through the UV peak window (cloud cover ~87%) — afternoon ozone should stay flat.
- Present
- AQI 31
- UV peak
- 0.3 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 4
PM × Wind × Precip
PM2.5 at 4.9 µg/m³ (AQI 27) with a 1.00 fine-to-coarse ratio and 6 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 1.00
- 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
- 11:13 PM
- Moonset
- 10:05 AM
- In sign
- ♓︎ Pisces
Cicadas claim the afternoon
Knife River at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: May 28 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 55609
16-Day Forecast — Knife River
- Sat69°58°44%
- Sun68°57°14%
- Mon66°53°14%
- Tue81°59°45%
- Wed67°56°57%
- Thu61°54°44%
- Fri71°52°8%
- Sat69°56°14%
- Sun65°56°9%
- Mon66°55°14%
- Tue70°54°11%
- Wed79°60°16%
- Thu73°59°19%
- Fri79°62°17%
- Sat68°58°19%
- Sun84°59°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 — Knife River
SPC has placed Knife River in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe 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 Knife River
- 55609