Potomac, MT weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Potomac now
Loading the National Weather Service forecast…
Potomac weather by the hour
Potomac weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Potomac.
This week in Potomac
Sunrise, sunset and moon in Potomac
What is the weather usually like in Potomac?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 82°F average high
- Januarycoldest month · 8°F average low
- 15.1 inprecipitation per year · 384 mm
- 51.8 insnowfall per year · 132 cm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Potomac: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station POTOMAC, MT US (USC00246685), adjusted for the elevation of Potomac.
Potomac weather month by month
Sunrise and sunset in Potomac through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:13 AM | 5:14 PM | 9 h 1 min |
| February | 7:36 AM | 6:00 PM | 10 h 24 min |
| March | 7:44 AM | 7:41 PM | 11 h 56 min |
| April | 6:44 AM | 8:24 PM | 13 h 40 min |
| May | 5:56 AM | 9:04 PM | 15 h 7 min |
| June | 5:37 AM | 9:32 PM | 15 h 55 min |
| July | 5:53 AM | 9:27 PM | 15 h 33 min |
| August | 6:30 AM | 8:46 PM | 14 h 15 min |
| September | 7:11 AM | 7:47 PM | 12 h 36 min |
| October | 7:51 AM | 6:48 PM | 10 h 57 min |
| November | 7:36 AM | 5:01 PM | 9 h 25 min |
| December | 8:11 AM | 4:47 PM | 8 h 36 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Potomac?
Potomac has a warm-summer humid continental climate. The warmest month is July, with an average high of 82°F (28°C), and the coldest is January, with average lows of 8°F (-13°C).
It gets about 15.1 inches (384 mm) of precipitation a year. The wettest month is June and the driest is August. Snow is common: about 52 inches fall in an average year.
The best time to visit Potomac is June to September. At 3,635 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Potomac
Weather in towns near Potomac
Questions about the weather in Potomac
What is the hottest month in Potomac?
July, with an average high of 82°F (28°C).
What is the coldest month in Potomac?
January, with an average low of 8°F (-13°C).
How much does it rain in Potomac?
About 15.1 inches (384 mm) a year; the wettest month is June.
Does it snow in Potomac?
Yes, about 52 inches of snow fall in an average year.
When is the best time to visit Potomac?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Potomac have?
Warm-summer humid continental (Köppen Dfb).
What is the weather like in Potomac in November?
Highs average 40°F and lows 16°F, with about 1.6 inches of precipitation.
What time is sunrise in Potomac?
Around 7:36 AM in mid-November, and sunset around 5:01 PM. Today’s exact times are shown above.
Where does this Potomac weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Potomac.
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