Ismay, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Ismay weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast41%—89°59°—
- SundayJul 5Overcast19%—97°64°+8°
- MondayJul 6Overcast19%—93°76°-4°
- TuesdayJul 7Thunderstorm57%0.02″75°62°-18°
- WednesdayJul 8Overcast51%—87°58°+12°
- ThursdayJul 9Overcast20%—93°69°+6°
- FridayJul 10Clear16%—85°67°-8°
AQI 47 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 7.8 µg/m³ (AQI 43) with a 0.87 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 7.8 µg/m³ (AQI 43) with a 0.87 fine-to-coarse ratio and 4 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.87
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:04 PM
- Moonset
- 10:00 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Ismay at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: May 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59336
15-Day Forecast — Ismay
- Sat89°60°41%
- Sun97°64°19%
- Mon93°76°19%
- Tue75°62°57%
- Wed87°58°51%
- Thu93°69°20%
- Fri85°67°16%
- Sat94°63°7%
- Sun89°71°6%
- Mon83°63°12%
- Tue100°63°13%
- Wed104°73°9%
- Thu98°78°11%
- Fri99°71°12%
- Sat107°79°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Ismay
SPC includes Ismay in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- 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.
ZIP codes in Ismay
- 59336