Geyser, Montana Weather
Monsoon storms drench the south. Day 14 of summer. Read this microseason across nine climate regions →
Geyser weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Clear——80°52°—
- SundayJul 5Overcast12%—81°58°+1°
- MondayJul 6Thunderstorm56%2.0″77°53°-4°
- TuesdayJul 7Light Drizzle56%—76°56°-1°
- WednesdayJul 8Rain27%0.16″87°59°+11°
- ThursdayJul 9Light Drizzle22%—73°54°-14°
- FridayJul 10Clear——79°54°+6°
AQI 22 (Good), driven by Ozone. AQI up 7 over the last 6 hours (gradual rise). Ozone at AQI 43 now. With UV 8.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 51 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 8.9 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 51 around 1 PM.
- Present
- AQI 43
- UV peak
- 8.9 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 51
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
- 11:30 PM
- Moonset
- 10:22 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
Geyser at a glance
- Today vs. normal: 15°F above the seasonal normal for this latitude
- Last frost: May 30 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 59447
16-Day Forecast — Geyser
- Sat80°52°2%
- Sun81°58°12%
- Mon77°53°56%
- Tue76°56°56%
- Wed87°59°27%
- Thu73°54°22%
- Fri79°54°5%
- Sat90°59°10%
- Sun96°69°8%
- Mon94°73°10%
- Tue97°72°16%
- Wed93°64°18%
- Thu79°56°19%
- Fri82°57°16%
- Sat89°61°12%
- Sun95°65°20%
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 — Geyser
SPC includes Geyser 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 Geyser
- 59447