Stewart Lake, MT 7-Day Weather Forecast

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Stewart Lake, MT 7-Day Weather Forecast

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Stewart Lake MT weather  - Mostly Cloudy - 60°F
Mostly Cloudy
60°F
Updated 11:14 pm
Feels Like 50°F
Humidity 93%
Wind ENE 5 mph
Barometer  29.98 in
Dew Point 59°F
Stewart Lake MT weather  - Mostly Cloudy - 16°C
Mostly Cloudy
16°C
Updated 11:14 pm
Feels Like 10°C
Humidity 93%
Wind ENE 8 km/h
Barometer  101.5 kPa
Dew Point 15°C
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Stewart Lake Weather Forecast

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Stewart Lake, MT Weather Forecast Date: 206 PM MDT Thu Aug 13 2026

Weather forecast for Stewart Lake, MT


Tonight
Stewart Lake MT Weather for Tonight - Chance Of T-Storm
Lo: 45°F
Lo: 7°C
Tonight... Patchy smoke through the night. Patchy fog after midnight. Chance of thunderstorms in the evening. Rain showers likely early in the evening, then chance of rain showers in the late evening and overnight. Chance of precipitation 70%. Some thunderstorms May produce heavy rainfall. Lows in the 40s.
Fri
Stewart Lake MT Weather for Friday - Chance Of T-Storm
Hi: 65°FHi: 18°C
Lo: 40°F
Lo: 4°C
Friday... Chance of rain showers and a slight chance of thunderstorms in the morning, then rain showers likely and a chance of thunderstorms in the afternoon. Patchy fog and smoke in the morning. Chance of precipitation 70%. Highs in the 60s.
Sat
Stewart Lake MT Weather for Saturday - Chance Of T-Storm
Hi: 70°FHi: 21°C
Lo: 45°F
Lo: 7°C
Saturday... Mostly cloudy. Areas of fog in the morning. A 50% chance of showers and thunderstorms in the afternoon. Highs in the upper 60s to mid 70s.
Sun
Stewart Lake MT Weather for Sunday - Chance Of T-Storm
Hi: 75°FHi: 24°C
Lo: 45°F
Lo: 7°C
Sunday... Partly cloudy. Areas of fog in the morning. A 30% chance of showers and thunderstorms in the afternoon. Highs in the 70s.
Mon
Stewart Lake MT Weather for Monday - Chance Of T-Storm
Hi: 75°FHi: 24°C
Lo: 45°F
Lo: 7°C
Monday... Mostly cloudy. A 30% chance of showers and thunderstorms in the afternoon. Highs in the 70s.
Tue
Stewart Lake MT Weather for Tuesday - Chance Of T-Storm
Hi: 70°FHi: 21°C
Lo: 45°F
Lo: 7°C
Tuesday... Slight chance of rain in the morning, then rain showers likely and a chance of thunderstorms in the afternoon. Chance of precipitation 60%. Highs in the upper 60s to mid 70s.
Wed
Stewart Lake MT Weather for Wednesday - Chance Of Rain
Hi: 70°FHi: 21°C
Lo: 45°F
Lo: 7°C
Wednesday... Partly cloudy with a 30% chance of rain. Highs in the upper 60s to mid 70s.

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