Sylvanite, Montana Weather
Thunderheads build by noon. Day 89 of spring. Read this microseason across nine climate regions →
Sylvanite weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 16Overcast——80°60°—
- WednesdayJun 17Mostly Clear——71°50°-9°
- ThursdayJun 18Clear——79°51°+8°
- FridayJun 19Overcast——82°51°+3°
- SaturdayJun 20Overcast——84°55°+2°
- SundayJun 21Overcast14%—83°49°-1°
- MondayJun 22Overcast12%—89°54°+6°
AQI 34 (Good), driven by Ozone. AQI up 5 over the last 6 hours (gradual rise). Ozone at AQI 44 now. With UV 8.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 51 around 1 PM.
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 44 now. With UV 8.7 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 51 around 1 PM.
- Present
- AQI 44
- UV peak
- 8.7 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 51
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).
Cut your thistles before St. John, you will have two instead of one.
- Moonrise
- 6:50 AM
- Moonset
- 11:18 PM
- In sign
- ♋︎ Cancer
Thunderheads build by noon
Sylvanite at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: June 7 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Sylvanite
- Tue80°60°1%
- Wed71°50°2%
- Thu79°51°1%
- Fri82°51°1%
- Sat84°55°4%
- Sun83°49°14%
- Mon89°54°12%
- Tue90°57°3%
- Wed86°58°4%
- Thu78°54°9%
- Fri78°53°9%
- Sat74°52°9%
- Sun72°46°17%
- Mon73°45°16%
- Tue75°46°16%
- Wed77°48°19%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Warm-season window is open
As of June 16, 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.
ZIP codes in Sylvanite
- 59935