Fallon, Montana Weather
Pikas hayfeeding in granite peaks. Day 78 of spring. Read this microseason across nine climate regions →
Fallon weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 4Light Drizzle35%0.02″74°50°—
- FridayJun 5Overcast——87°54°+13°
- SaturdayJun 6Overcast66%—98°62°+11°
- SundayJun 7Light Drizzle66%—80°57°-18°
- MondayJun 8Light Showers48%—79°55°-1°
- TuesdayJun 9Drizzle25%—85°64°+6°
- WednesdayJun 10Overcast35%—83°65°-2°
AQI 37 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
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).










































The higher the clouds, the finer the weather.
- Moonrise
- 6:22 AM
- Moonset
- 3:52 PM
- In sign
- ♒︎ Aquarius
Pikas hayfeeding in granite peaks
Fallon 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 5, 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 — Fallon
SPC has placed Fallon in the Slight Risk category for severe thunderstorms day after tomorrow.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWNONENo severe risk
- DAY 3SLGTSlight Risk
Scattered severe storms possible. A few tornadoes, hail, and damaging wind gusts possible.
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.