Shelby, Montana Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Shelby weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Partly Cloudy——72°48°—
- FridayJun 5Overcast——74°47°+2°
- SaturdayJun 6Overcast10%—71°52°-3°
- SundayJun 7Overcast27%—61°46°-10°
- MondayJun 8Overcast15%—71°46°+10°
- TuesdayJun 9Overcast32%—63°55°-8°
- WednesdayJun 10Overcast44%—77°52°+14°
Ozone at AQI 46 — peak already passed at 1 PM under partly cloudy skies. AQI up 18 in the last 6 hours — air quality is degrading. 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 46 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.
- Present
- AQI 46
- UV peak
- 4.2 at earlier today
- Sky at peak
- partly cloudy
- Projected peak
- AQI 46
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:31 AM
- Moonset
- 3:03 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Shelby at a glance
- Today vs. normal: 6°F above the seasonal normal for this latitude
- Last frost: June 6 (climatological average for this latitude)
- Microseason: Jun 1–5
- Planting window: Harvest spring lettuce before it bolts. Sow heat-tolerant greens.
Right now in the garden
Warm-season window is open
As of June 4, the last spring frost has passed for most years. Transplant tomatoes, peppers, eggplants, basil, and cucurbits (cucumbers, squash, melons) now. Direct-sow beans and corn into warm soil.
SPC Convective Outlook
Storm Prediction Center — Shelby
SPC has placed Shelby in the General Thunderstorms category for severe thunderstorms today.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- 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.