Fort Smith
Montana, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Fort Smith, MT

January, like December, is a freezing cold winter month in Fort Smith, Montana, with average temperature fluctuating between 31.1°F (-0.5°C) and 17.8°F (-7.9°C). In Fort Smith, Montana, the average high-temperature in January is essentially the same as in December - a still freezing cold 31.1°F (-0.5°C). Weather in January »

February, the last month of the winter, in Fort Smith, is also a subzero cold month, with average temperature fluctuating between 31.1°F (-0.5°C) and 16.5°F (-8.6°C). In Fort Smith, the average high-temperature remains equal as in January - a still subzero cold 31.1°F (-0.5°C). Weather in February »

The first month of the spring, March, is a cold month in Fort Smith, Montana, with average temperature ranging between min 27.1°F (-2.7°C) and max 42.6°F (5.9°C). In March, the average high-temperature increases, from a freezing cold 31.1°F (-0.5°C) in February, to a wintry 42.6°F (5.9°C). Weather in March »

April is a cool spring month in Fort Smith, Montana, with average temperature fluctuating between 51.1°F (10.6°C) and 33.1°F (0.6°C). In April, the average high-temperature marginally rises, from a wintry 42.6°F (5.9°C) in March, to a fresh 51.1°F (10.6°C). Weather in April »

May, the last month of the spring, in Fort Smith, is a comfortable month, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 61.3°F (16.3°C). In May, the average high-temperature increases, from a fresh 51.1°F (10.6°C) in April, to an enjoyable 61.3°F (16.3°C). Weather in May »

The first month of the summer, June, is an agreeable month in Fort Smith, Montana, with average temperature fluctuating between 51.4°F (10.8°C) and 73°F (22.8°C). In Fort Smith, Montana, the average high-temperature rises, from a comfortable 61.3°F (16.3°C) in May, to an agreeable 73°F (22.8°C). Weather in June »

July is a moderately hot summer month in Fort Smith, Montana, with average temperature ranging between min 58.6°F (14.8°C) and max 83.1°F (28.4°C). July is the warmest month, with an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 58.6°F (14.8°C). In July, the average heat index is estimated at 82.9°F (28.3°C). Weather in July »

The last month of the summer, August, is another warm month in Fort Smith, Montana, with average temperature ranging between min 58.5°F (14.7°C) and max 81.3°F (27.4°C). In August, the average high-temperature is essentially the same as in July - a still warm 81.3°F (27.4°C). Weather in August »

September, the first month of the autumn, in Fort Smith, is still a pleasant month, with average temperature ranging between max 71.4°F (21.9°C) and min 51.3°F (10.7°C). In Fort Smith, the average high-temperature decreases, from a moderately hot 81.3°F (27.4°C) in August, to a pleasant 71.4°F (21.9°C). Weather in September »

October, like September, in Fort Smith, Montana, is another fresh autumn month, with average temperature varying between 54.5°F (12.5°C) and 38.7°F (3.7°C). In Fort Smith, Montana, the average high-temperature in October significantly decreases, from an agreeable 71.4°F (21.9°C) in September, to a cool 54.5°F (12.5°C). Weather in October »

The last month of the autumn, November, is also a wintry month in Fort Smith, Montana, with average temperature varying between 27.7°F (-2.4°C) and 40.8°F (4.9°C). In November, the average high-temperature decreases, from a fresh 54.5°F (12.5°C) in October, to a wintry 40.8°F (4.9°C). Weather in November »

December, the first month of the winter, in Fort Smith, is also a subzero cold month, with temperature in the range of an average low of 16.9°F (-8.4°C) and an average high of 29.7°F (-1.3°C). The coldest month is December, with an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 16.9°F (-8.4°C). Weather in December »

How much does it rain in Fort Smith?

Throughout the year, in Fort Smith, Montana, there are 128.8 rainfall days, and 12.64" (321mm) of precipitation is accumulated.

When does it snow in Fort Smith?

January through May, September through December are months with snowfall.

How much does it snow in Fort Smith?

Throughout the year, in Fort Smith, Montana, there are 66 snowfall days, and 33.07" (840mm) of snow is accumulated.

What is the most humid month in Fort Smith?

With an average relative humidity of 77%, February is the most humid month.

What is the snowiest month in Fort Smith?

The month with the most snowfall in Fort Smith, Montana, is February when snow falls for 14.3 days and typically aggregates up to 6.85" (174mm) of snow.

What is the month with the least sunshine in Fort Smith?

With an average of 5.7h of sunshine, February has the least sunshine of the year.

What is the rainiest month in Fort Smith?

May is the month with the most rainfall. Rain falls for 18 days and accumulates 2.01" (51mm) of precipitation.

When it does not snow in Fort Smith?

June through August are months without snowfall in Fort Smith.

When are the longest days in Fort Smith?

June has the longest days of the year, with an average of 15.6h of daylight.

What is the month with the highest UV index in Fort Smith?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Fort Smith.

What is the warmest month in Fort Smith?

With an average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 58.6°F (14.8°C), July is the warmest month.

What month has the most sunshine in Fort Smith?

With an average of 11.9h of sunshine, July has the most sunshine of the year.

What is the least humid month in Fort Smith?

The least humid month in Fort Smith is August, with an average relative humidity of 41%.

What is the coldest month in Fort Smith?

With an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 16.9°F (-8.4°C), December is the coldest month.

What is the driest month in Fort Smith?

The month with the least rainfall is December when the rain falls for 6.3 days and typically collects 0.59" (15mm) of precipitation.

What is the month with the shortest days in Fort Smith?

December has the shortest days of the year in Fort Smith, with an average of 8.8h of daylight.

What is the month with the lowest UV index in Fort Smith?

With an average maximum UV index of 1, December is the month with the lowest UV index in Fort Smith, Montana.
Average temperature - Fort Smith, MT
Average rainfall - Fort Smith, MT
Average rainfall days - Fort Smith, MT

The month with the highest number of rainy days is May (18 days).
Months with the least rainy days are January and December (6.3 days).

Average snowfall - Fort Smith, MT
Average snowfall days - Fort Smith, MT

The month with the highest number of snowfall days is February (14.3 days).
Months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine - Fort Smith, MT

The month with the longest days is June (Average daylight: 15.6h).
The month with the shortest days is December (Average daylight: 8.8h).

The month with the most sunshine is July (Average sunshine: 11.9h).
The month with the least sunshine is February (Average sunshine: 5.7h).