Garrison, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Garrison weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Overcast——83°52°—
- SundayJul 5Overcast——82°56°-1°
- MondayJul 6Showers56%0.22″78°56°-4°
- TuesdayJul 7Overcast56%—83°53°+5°
- WednesdayJul 8Overcast21%—89°57°+6°
- ThursdayJul 9Mostly Clear10%—78°52°-11°
- FridayJul 10Clear——83°49°+5°
AQI 36 (Good), driven by Ozone. AQI down 6 over the last 6 hours (gradual decline).
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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:38 PM
- Moonset
- 10:33 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Garrison at a glance
- Today vs. normal: 8°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: 59731
15-Day Forecast — Garrison
- Sat83°53°7%
- Sun82°56°8%
- Mon78°56°56%
- Tue83°53°56%
- Wed89°57°21%
- Thu78°52°10%
- Fri83°49°4%
- Sat96°54°3%
- Sun78°52°4%
- Mon86°48°8%
- Tue97°57°11%
- Wed94°68°15%
- Thu94°63°16%
- Fri96°60°12%
- Sat89°62°14%
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 — Garrison
SPC includes Garrison in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- 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 Garrison
- 59731