Dayton, Montana Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
Dayton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Clear——84°55°—
- SundayJul 5Overcast——85°60°+1°
- MondayJul 6Overcast13%—83°61°-2°
- TuesdayJul 7Overcast13%—89°56°+6°
- WednesdayJul 8Light Drizzle——82°59°-7°
- ThursdayJul 9Overcast——84°52°+2°
- FridayJul 10Clear——88°53°+4°
AQI 48 (Good), driven by Ozone. AQI up 14 over the last 6 hours (gradual rise). Ozone at AQI 51. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
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 51. Overcast through the UV peak window (cloud cover ~67%) — afternoon ozone should stay flat.
- Present
- AQI 51
- UV peak
- 0.2 at 1 PM
- Sky at peak
- overcast
- Projected peak
- AQI 6
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
- 12:02 AM
- Moonset
- 11:52 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Dayton at a glance
- Today vs. normal: 16°F above the seasonal normal for this latitude
- Last frost: June 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59914
16-Day Forecast — Dayton
- Sat84°55°1%
- Sun85°60°1%
- Mon83°61°13%
- Tue89°56°13%
- Wed82°59°4%
- Thu84°52°3%
- Fri88°53°1%
- Sat94°57°2%
- Sun88°60°3%
- Mon97°58°3%
- Tue99°60°8%
- Wed95°60°8%
- Thu93°57°12%
- Fri94°56°13%
- Sat94°58°13%
- Sun94°60°9%
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.
ZIP codes in Dayton
- 59914