Malmstrom AFB, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Malmstrom AFB weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Mostly Clear——87°51°—
- SundayJul 5Overcast——87°60°0°
- MondayJul 6Showers50%0.08″75°56°-12°
- TuesdayJul 7Overcast50%—82°58°+7°
- WednesdayJul 8Light Drizzle19%—92°61°+10°
- ThursdayJul 9Overcast19%—80°60°-12°
- FridayJul 10Clear——87°55°+7°
AQI 42 (Good), driven by Ozone. AQI up 22 in the last 6 hours — air quality is degrading. Ozone at AQI 43 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
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 43 — peak already passed at 1 PM under clear skies. Levels should ease through evening.
- Present
- AQI 43
- UV peak
- 1.7 at earlier today
- Sky at peak
- clear
- Projected peak
- AQI 43
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
- 11:50 PM
- Moonset
- 11:38 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Malmstrom AFB at a glance
- Today vs. normal: 22°F above the seasonal normal for this latitude
- Last frost: May 31 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — Malmstrom AFB
- Sat87°51°1%
- Sun87°59°4%
- Mon75°56°50%
- Tue82°58°50%
- Wed92°61°19%
- Thu80°60°19%
- Fri87°55°1%
- Sat101°63°3%
- Sun97°68°3%
- Mon101°69°11%
- Tue103°68°15%
- Wed101°68°15%
- Thu87°65°16%
- Fri97°57°13%
- Sat87°60°12%
- Sun91°62°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, 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 — Malmstrom AFB
SPC includes Malmstrom AFB 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 Malmstrom AFB
- 59405
- 59402