St. Xavier, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
St. Xavier weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Clear11%—91°56°—
- SundayJul 5Overcast14%—96°65°+5°
- MondayJul 6Light Drizzle54%—89°64°-7°
- TuesdayJul 7Showers54%0.15″89°65°0°
- WednesdayJul 8Light Rain28%0.08″96°61°+7°
- ThursdayJul 9Light Drizzle28%—88°62°-8°
- FridayJul 10Clear——94°60°+6°
AQI 48 (Good), driven by Ozone. AQI up 14 over the last 6 hours (gradual rise). Ozone at AQI 43 now. With UV 0.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
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 now. With UV 0.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10 around 1 PM.
- Present
- AQI 43
- UV peak
- 0.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
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
- 11:34 PM
- Moonset
- 11:24 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
St. Xavier at a glance
- Today vs. normal: 19°F above the seasonal normal for this latitude
- Last frost: May 19 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
16-Day Forecast — St. Xavier
- Sat91°56°11%
- Sun96°65°14%
- Mon89°64°54%
- Tue89°65°54%
- Wed96°61°28%
- Thu88°62°28%
- Fri94°60°7%
- Sat105°65°2%
- Sun111°75°3%
- Mon105°74°6%
- Tue107°79°20%
- Wed108°76°33%
- Thu109°76°35%
- Fri104°67°35%
- Sat107°72°13%
- Sun101°74°24%
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 — St. Xavier
SPC has placed St. Xavier in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
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.
ZIP codes in St. Xavier
- 59075