Greycliff, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Greycliff weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 3Overcast19%—85°52°—
- SaturdayJul 4Overcast——89°56°+4°
- SundayJul 5Drizzle39%—94°60°+5°
- MondayJul 6Light Drizzle39%—80°59°-14°
- TuesdayJul 7Light Drizzle34%—89°58°+9°
- WednesdayJul 8Light Drizzle32%0.04″93°57°+4°
- ThursdayJul 9Overcast23%—87°60°-6°
AQI 45 (Good), driven by Ozone. AQI up 22 in the last 6 hours — air quality is degrading. Ozone at AQI 50 — 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 50 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 50
- UV peak
- 2.9 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 50
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
- 11:03 PM
- Moonset
- 9:11 AM
- In sign
- ♒︎ Aquarius
Monsoon storms drench the south
Greycliff at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: May 21 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59033
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 — Greycliff
SPC includes Greycliff in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
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 Greycliff
- 59033