Marysville, Montana Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Marysville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Drizzle25%—62°49°—
- FridayJun 5Overcast——74°46°+12°
- SaturdayJun 6Overcast15%—70°46°-4°
- SundayJun 7Light Snow41%0.11″53°38°-17°
- MondayJun 8Overcast21%—65°35°+12°
- TuesdayJun 9Light Drizzle60%0.01″62°47°-3°
- WednesdayJun 10Overcast56%—75°46°+13°
Ozone at AQI 47 now. AQI up 8 over the last 6 hours (gradual rise). With UV 7.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 44 by mid-afternoon.
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 47 now. With UV 7.0 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 44 by mid-afternoon.
- Present
- AQI 47
- UV peak
- 7.0 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 44
PM × Wind × Precip
PM2.5 at 6.4 µg/m³, PM10 at 8.5 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.75
- Wind
- breezy
- 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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 6:25 AM
- Moonset
- 3:11 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Marysville at a glance
- Today vs. normal: 9°F below the seasonal normal for this latitude
- Last frost: May 27 (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 — Marysville
SPC has placed Marysville in the General Thunderstorms category for severe thunderstorms day after tomorrow.
- TODAYNONENo severe risk
- 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.