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Lewistown weather live forecast
Today's maximum temperature in Lewistown is expected to be 13°C. Select a day from the live weather forecast for Lewistown, Montana, USA for more weather parameters.
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Saturday
4th Oct -
Sunday
5th Oct -
Monday
6th Oct -
Tuesday
7th Oct -
Wednesday
8th Oct
5-day weather forecast updated at 04:03 on Saturday 4th October 2025 GMT
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The 5-day weather forecast for Montana (Lewistown) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.
Lewistown weather forecast by day
Below are the detailed weather forecasts for Lewistown for the next 5 days.
Lewistown weather for Saturday 4th October 2025
Expect mostly cloudy with light rain in Lewistown, Montana with a maximum temperature of 13°C, maximum UV of 2 (Low) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 78% chance of some rain and a gentle breeze of 17 kph from the north.
- °C maximum temperature
- °C minimum temperature
- mostly cloudy with light rain
- hour of sunshine
- UV index (Low)
- % chance of some rain
- mm of rainfall expected
- °C wind chill
- kph wind from N
Lewistown weather for Sunday 5th October 2025
Expect cloudy with sleet or snow in Lewistown, Montana with a maximum temperature of 5°C, maximum UV of 2 (Low) and 2 hours of bright sunshine. There are 2-5 mm of sleet/snow expected with 74% chance of some sleet or snow and a gentle breeze of 17 kph from the north-west.
- °C maximum temperature
- °C minimum temperature
- cloudy with sleet or snow
- hours of sunshine
- UV index (Low)
- % chance of some sleet or snow
- mm of sleet/snow expected
- °C wind chill
- kph wind from NW
Lewistown weather for Monday 6th October 2025
Expect scattered clouds in Lewistown, Montana with a maximum temperature of 12°C, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the west.
- °C maximum temperature
- °C minimum temperature
- scattered clouds
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- no heat & humidity
- kph wind from W
Lewistown weather for Tuesday 7th October 2025
Expect clear skies in Lewistown, Montana with a maximum temperature of 19°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south.
- °C maximum temperature
- °C minimum temperature
- clear skies
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- °C wind chill
- kph wind from S
Lewistown weather for Wednesday 8th October 2025
Expect clear skies in Lewistown, Montana with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 14 kph from the south.
- °C maximum temperature
- °C minimum temperature
- clear skies
- hours of sunshine
- UV index (Moderate)
- mm of rainfall expected
- no heat & humidity
- kph wind from S
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Metric (°C / mm) | Imperial (°F / inches)
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