Forsyth, Montana Weather
Pikas hayfeeding in granite peaks. Day 77 of spring. Read this microseason across nine climate regions →
Forsyth weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Drizzle22%—78°53°—
- FridayJun 5Overcast——88°54°+10°
- SaturdayJun 6Overcast18%—99°62°+11°
- SundayJun 7Drizzle43%0.02″77°54°-22°
- MondayJun 8Overcast43%—80°50°+3°
- TuesdayJun 9Overcast19%—91°61°+11°
- WednesdayJun 10Light Drizzle39%—83°62°-8°
Ozone at AQI 41. AQI flat over the last 6 hours (within ±4 points). Overcast through the UV peak window (cloud cover ~100%) — 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 41. Overcast through the UV peak window (cloud cover ~100%) — afternoon ozone should stay flat.
- Present
- AQI 41
- UV peak
- 7.6 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 21
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
- 5:59 AM
- Moonset
- 2:50 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Forsyth at a glance
- Today vs. normal: 67°F — typical for the season
- Last frost: May 24 (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 — Forsyth
SPC has placed Forsyth in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWNONENo severe risk
- DAY 3MRGLMarginal Risk
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.