National Weather Service United States Department of Commerce

*****Experimental*****

The graphical and text forecasts on this page are experimental.  The wind and wave forecasts are derived directly from model data with no forecaster oversight.  Other elements such as chance of precipitation, sky, and temperatures are pulled from the gridded forecast issued by the Great Falls forecast office.

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FXUS45 KTFX 200458
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Recreation Forecast for Central MT Lakes
National Weather Service Great Falls MT
1058 PM MDT Tue Jun 19 2018

Note: The experimental wave height forecasts are representative of
the mid lake waters and downwind shores. Wave heights may be
significantly less on upwind shores.

Forecast For Canyon Ferry Reservoir

FLOOD WATCH IN EFFECT THROUGH WEDNESDAY MORNING.

.TONIGHT...Mostly cloudy. A chance of thunderstorms early in the
evening, then a chance of showers in the late evening and early
morning. A slight chance of showers late in the night. Patchy fog
late in the night. Lows around 50 . Variable winds up to 10 mph.
Chance of precipitation 50 percent. Waves less than 1 foot.
.WEDNESDAY...Partly sunny. A slight chance of showers in the
morning, then a slight chance of thunderstorms in the afternoon.
Highs around 70 . Variable winds up to 10 mph. Chance of
precipitation 20 percent. Waves less than 1 foot.
.WEDNESDAY NIGHT...Partly cloudy. Lows around 50 . Variable winds
up to 10 mph. Waves less than 1 foot.

$$


Forecast For Upper and Lower Holter Reservoir

.TONIGHT...Mostly cloudy. Showers and a chance of thunderstorms
early in the evening, then a chance of showers in the late
evening and overnight. Patchy fog after midnight. Lows around
50 . Variable winds up to 10 mph. Chance of precipitation
90 percent. Waves up to one foot.
.WEDNESDAY...Partly sunny. Patchy fog in the morning. A slight
chance of showers in the morning, then a slight chance of
thunderstorms in the afternoon. Highs in the lower 70s. Variable
winds up to 10 mph. Chance of precipitation 20 percent. Waves
less than 1 foot.
.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower 50s. Variable
winds up to 10 mph. Waves less than 1 foot.

$$


Forecast For Hauser Reservoir and Lake Helena

.TONIGHT...Mostly cloudy. A chance of thunderstorms early in the
evening, then a chance of showers late in the evening. A slight
chance of showers and snow showers after midnight. Patchy fog in
the late evening and early morning. Areas of fog late in the
night. Lows in the mid 20s to lower 50s. Variable winds up to
10 mph. Chance of precipitation 50 percent. Waves up to one foot.
.WEDNESDAY...Partly sunny. Areas of fog in the morning. A slight
chance of showers in the morning, then a slight chance of
thunderstorms in the afternoon. Highs in the lower 70s. Variable
winds up to 10 mph. Chance of precipitation 20 percent. Waves
less than 1 foot.
.WEDNESDAY NIGHT...Warmer. Partly cloudy. Lows around 50 .
Variable winds up to 10 mph. Waves less than 1 foot.

$$

 

Click the above graphics for more information on boating safety.