Twin Hills Colony, Montana Weather
Granite bones emerge from cover. Day 50 of autumn. Read this microseason across nine climate regions →
Twin Hills Colony weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 2:30 PM MST · Open-Meteo
- TodayNov 10Clear——59°42°—
- WednesdayNov 11Clear——65°41°+6°
- ThursdayNov 12Overcast——61°47°-4°
- FridayNov 13Overcast——57°43°-4°
- SaturdayNov 14Overcast——51°39°-6°
- SundayNov 15Overcast——55°39°+4°
- MondayNov 16Overcast——54°40°-1°
Air quality now AQI 33 · Good
AQI 33 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 40 now. With UV 0.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10.
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 40 now. With UV 0.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10.
- Present
- AQI 40
- UV peak
- 0.8 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).
When the wind is in the west, the weather is at its best.
- Moonrise
- 9:24 AM
- Moonset
- —
- In sign
- ♐︎ Sagittarius
Granite bones emerge from cover
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Twin Hills Colony at a glance
- Today vs. normal: Today averages 51°F (high 59°F, low 42°F), 14°F above the 37°F normal for Nov 10
- Last frost: May 13 (1991–2020 median, NOAA station 16 km away)
- Microseason: Nov 6–10
16-Day Forecast — Twin Hills Colony
- Tue59°42°7%
- Wed65°41°4%
- Thu61°47°0%
- Fri57°43°0%
- Sat51°39°1%
- Sun55°39°3%
- Mon54°40°8%
- Tue52°38°25%
- Wed46°32°21%
- Thu38°28°19%
- Fri37°25°16%
- Sat32°21°17%
- Sun32°19°13%
- Mon47°26°13%
- Tue54°37°10%
- Wed52°34°13%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Post-frost dormancy
As of November 10, the season's first frost (typically September 29) is due or past. Bring frost-tender plants indoors, mulch overwintering beds, and turn spent plantings under. This city's planting calendar lists nothing to plant or harvest in November.
Sun & seasons in Twin Hills Colony
Twin Hills Colony sits in Chouteau County, where the year’s longest day runs 16h 3m of daylight and its shortest just 8h 22m — a swing of +7h 41m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Billings, the state’s largest city, lies about 194 miles to the SE. The nearest town Twin Hills Colony tracks is Sunnybrook Colony, roughly 19 miles to the ENE.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes | spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| July | tomatoes, peppers, beans, squash, fall brassicas, carrots | lettuce, peas, spinach |
| August | garlic (overwinter) | lettuce, peas, beans, summer squash, garlic |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| October | — | fall brassicas, carrots |
A year in weather
Twin Hills Colony peaks at about 68°F in July and bottoms near 24°F in January; June brings the heaviest rain (2.7 inches) and February the least (0.4 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 24° | 0.4″ | 4 |
| February | 26° | 0.4″ | 4 |
| March | 33° | 0.5″ | 6 |
| April | 44° | 1.2″ | 8 |
| May | 52° | 2.0″ | 10 |
| June | 60° | 2.7″ | 11 |
| July | 68° | 1.2″ | 7 |
| August | 68° | 1.1″ | 6 |
| September | 59° | 1.1″ | 6 |
| October | 46° | 0.9″ | 6 |
| November | 36° | 0.5″ | 3 |
| December | 26° | 0.5″ | 5 |
Regional context
Similar climates Riverview Colony, MT, Carter, MT, Sunnybrook Colony, MT
Per NOAA NCEI 1991-2020 normals, Twin Hills Colony runs from a 24°F January mean to 68°F in July, a 45°F seasonal spread, with near 12.5 inches of precipitation across about 75 wet days.
Precipitation in Twin Hills Colony runs summer-dominant: June averages 2.7 inches across 10.7 days of warm-season storms, while February drops to 0.4 inches over 4.3 rainy days of drier cool air. That puts Twin Hills Colony in a summer-convective cohort with places like Riverview Colony, MT, Carter, MT and Sunnybrook Colony, MT.
Once Twin Hills Colony passes May 13, freezes fade and Twin Hills Colony's beds take kale, peas, spinach, and parsnips. Heat-demanding starts go out a fortnight on in Twin Hills Colony, after the soil warms and cold snaps clear. By September 29, frost is back in Twin Hills Colony — protect or harvest anything tender. Open lawns in Twin Hills Colony whiten first when frost returns.
Similar climates: Riverview Colony, MT, Carter, MT, Sunnybrook Colony, MT, Floweree, MT, Fort Benton, MT.
Frequently asked
- When does it freeze in Twin Hills Colony?
- In Twin Hills Colony, expect the last spring frost near May 13; Twin Hills Colony's first autumn frost comes around September 29.
- What is the rainy season in Twin Hills Colony?
- Twin Hills Colony sees its heaviest rain in June (around 2.7 inches), part of roughly 12 inches a year.
- What is the warmest month in Twin Hills Colony?
- On average July tops the year in Twin Hills Colony at about 68°F.
- What is the coldest month in Twin Hills Colony?
- The coldest stretch in Twin Hills Colony falls in January, around 24°F on average.
- When can I start a vegetable garden in Twin Hills Colony?
- Around May 13, start frost-hardy crops in Twin Hills Colony; tomatoes and basil belong a fortnight later.
- How many rainy days does Twin Hills Colony get?
- Twin Hills Colony averages about 75 days with measurable rain or snow each year.
- What hardiness zone is Twin Hills Colony?
- With January around 24°F, Twin Hills Colony's zone reflects that minimum — the USDA ZIP map confirms Twin Hills Colony's band.
- What is the 10-day forecast for Twin Hills Colony?
- Twin Hills Colony's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Twin Hills Colony?
- See this week's day-by-day rain chances for Twin Hills Colony in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Twin Hills Colony?
- Current conditions for Twin Hills Colony and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Twin Hills Colony forecast updated?
- The Twin Hills Colony forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Twin Hills Colony?
- Today's sunrise and sunset times for Twin Hills Colony are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Twin Hills Colony?
- The next few days in Twin Hills Colony's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Twin Hills Colony sits at 48.0°N; its climate zone is cold semi-arid (Köppen approximation).
ZIP codes in Twin Hills Colony
- 59420