Weather Alert
Grasshopper Lakes Weather Warning NWS WEATHER ALERT FOR THE GRASSHOPPER LAKES, MT AREA - FLOOD WATCH Issued: 1059 PM MDT Fri Sep 18 2026 Grasshopper Lakes Weather Warning

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Grasshopper Lakes, MT Weather - Hour by Hour Forecast

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Grasshopper Lakes, MT Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Fog And Mist. Temperature is 55°F13°C, dew point 54°F12°C, humidity 94%. Wind direction is N at 0 mph0 km/h with visibility of 5.00 mi8 km. Barometric pressure is 30.18 in1022 mb.
Rest of Tonight - Rain showers likely and slight chance of thunderstorms late in the evening, then chance of rain showers and slight chance of thund.. Full Forecast
Saturday - Cooler. Areas of fog early in the morning. Patchy fog late in the morning. Slight chance of thunderstorms in the morning. Rain sho.. Full Forecast

Grasshopper Lakes Hourly Weather

24 Hour Forecast Scroll
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Grasshopper Lakes, MT Hourly Weather - Cloudy - 1:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 2:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 3:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 4:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 5:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 6:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 7:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 8:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 9:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 10:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 11:00 AM Grasshopper Lakes, MT Hourly Weather - Cloudy - 12:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 1:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 2:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 3:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 4:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 5:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 6:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 7:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 8:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 9:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 10:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 11:00 PM Grasshopper Lakes, MT Hourly Weather - Cloudy - 12:00 AM
Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
56°F13°C 55°F13°C 55°F13°C 54°F12°C 54°F12°C 53°F12°C 53°F12°C 52°F11°C 52°F11°C 52°F11°C 53°F12°C 53°F12°C 53°F12°C 54°F12°C 54°F12°C 53°F12°C 53°F12°C 52°F11°C 51°F11°C 51°F11°C 50°F10°C 50°F10°C 49°F9°C 49°F9°C
Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain Rain
57% 57% 57% 57% 57% 57% 64% 64% 64% 64% 64% 64% 64% 64% 64% 64% 64% 64% 37% 37% 37% 37% 37% 37%
53°F12°C 53°F12°C 53°F12°C 53°F12°C 53°F12°C 53°F12°C 53°F12°C 52°F11°C 52°F11°C 52°F11°C 52°F11°C 52°F11°C 52°F11°C 52°F11°C 52°F11°C 52°F11°C 51°F11°C 51°F11°C 51°F11°C 50°F10°C 50°F10°C 50°F10°C 49°F9°C 49°F9°C
90% 93% 93% 96% 96% 100% 100% 100% 100% 100% 96% 96% 96% 93% 93% 96% 93% 96% 100% 96% 100% 100% 100% 100%
E ENE NE NE ENE ENE ENE NE NE NE NE NE NE NE NNE E SE S SSE SW SW SW SW SW
8 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 mph 7 mph 7 mph 7 mph 13 mph 13 mph 13 mph 12 mph 12 mph 12 mph 8 mph 8 mph 8 mph 7 mph 7 mph 7 mph 6 mph 6 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 km 5 mi8 km 6 mi10 km 6 mi10 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (MDT)
Weather
Clouds
Temperature
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KLVM model statistics.

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Prob Precip % = Probability of Precipitation.

Grasshopper Lakes 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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