Georgetown Lake & Philipsburg, MT

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Georgetown Lake, Granite County, Montana

Today’s Forecast:

🌤
35°F
High: 39° | Low: 32°
Current Temperature
Station: MTGTL
Observed at: 9:00 pm CST on 11/12/26
Wind: 2 mph | Humidity: 60%
Tonight:Mostly cloudy, with a low around 32. Southeast wind 5 to 8 mph.
Friday:Mostly cloudy. High near 52, with temperatures falling to around 46 in the afternoon. South southeast wind 6 to 9 mph.
Friday Night:Mostly cloudy, with a low around 30. South southeast wind 5 to 9 mph.
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Today’s Report:

⛵ Boating

  23 /100

Not Recommended for boating. High near 51°F. Light wind (9 mph). Temperatures outside comfort limits (51°F).

  • Temp: Unfavorable weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 22/100
Not Recommended for boating. High near 41°F. Risk of rain (30%). Light wind (7 mph). Temperatures outside comfort limits (41°F).

⛳ Golf

Good
  72 /100

Good for golf. High near 51°F. Light wind (9 mph).

  • Temp: Marginal weather factor
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Not Recommended 12/100
Not Recommended for golf. High near 41°F. Risk of rain (30%). Light wind (7 mph). Temperatures outside comfort limits (41°F).

⛺ Camping

Excellent
  100 /100

Excellent for camping. High near 51°F. Light wind (9 mph).

  • Temp: Favorable conditions
  • Rain: Favorable conditions
  • Wind: Favorable conditions
  • Thunderstorm: Favorable conditions
Tomorrow's Outlook:
Fair 68/100
Fair for camping. High near 41°F. Risk of rain (30%). Light wind (7 mph).

About Georgetown Lake & Philipsburg

Georgetown Lake & Philipsburg is a Montana destination for high-country lake recreation, camping, golf, and a historic-town base.

Make the Most of a Georgetown Lake & Philipsburg Day

Use the forecast to match the day’s route, launch, road access, and turnaround time to wind, precipitation, temperature, smoke, water conditions, and elevation. Keep a shorter or lower-elevation backup ready.

Weather Tips for Georgetown Lake & Philipsburg

  • Check current access, alerts, fire restrictions, and local forecasts before setting out.
  • Cold water, waves, current, wind, and lightning should guide launch and crossing decisions more than sunshine alone.
  • Montana weather can shift quickly; carry layers, sun protection, water, and a reliable navigation plan.
  • Allow extra daylight for remote roads, seasonal traffic, wildlife, and changing trail or shoreline conditions.

Nearby Towns and Areas

This page can also be useful when planning outdoor time near:

  • Philipsburg
  • Anaconda
  • Georgetown Lake
  • Discovery Basin
  • Flint Creek Valley

Plan Around the Conditions

Choose the safest and most enjoyable version of a Georgetown Lake & Philipsburg day by matching the activity to current wind, precipitation, smoke, temperature, road access, trail surfaces, water conditions, and daylight.

7-Day Forecast for Georgetown Lake & Philipsburg

🌤
35°F
High: 39° | Low: 32°
Current Temperature
Station: MTGTL
Observed at: 9:00 pm CST on 11/12/26
Wind: 2 mph | Humidity: 60%
Fri ☁
52° 30°
0%
Sat ❄
42° 25°
30%
Sun ⛅
45° 26°
0%
Mon ❄
43° 25°
53%
Tue ❄
37° 22°
45%
Wed ❄
37° 21°
24%
Thu ❄
35° --°
39%

7-Day High Temperature Trend

52° Fri 42° Sat 45° Sun 43° Mon 37° Tue 37° Wed 35° Thu

7-Day Low Temperature Trend

30° Fri 25° Sat 26° Sun 25° Mon 22° Tue 21° Wed 50° Thu

📊 7-Day Outdoor Outlook

Good Fair Poor 80 Fri 19 Sat 20 Sun 19 Mon 19 Tue 20 Wed 19 Thu
Forecast data from the National Weather Service  |  Last Updated: November 12, 2026 9:51 pm CST

Georgetown Lake & Philipsburg Weather by Season

Winter

Winter around Georgetown Lake & Philipsburg can bring snow, ice, strong wind, short daylight, and abrupt cold. Check road, trail, campground, and facility access before leaving, and expect conditions to change sharply with elevation. Cold water and ice remain serious hazards even when the air feels mild.

Spring

Spring is variable, with freeze-thaw cycles, mud, lingering mountain snow, rising water, and occasional late storms. Lower routes often open well before high-country roads and trails. Cold water and ice remain serious hazards even when the air feels mild.

Summer

Summer generally offers the broadest access, but heat, afternoon thunderstorms, wildfire smoke, fire restrictions, gusty wind, and limited shade can alter plans. Start exposed outings early and carry more water than expected.

Fall

Fall brings cooler days, clearer periods, changing color, shorter daylight, and the possibility of early snow. Seasonal services can close before winter weather becomes continuous, so confirm local operations.

Key Climate Data Points

  • Annual average temperature: around 40–46°F, using the relevant local and elevation context.
  • Annual snowfall: commonly 35–70 inches in valleys and foothills, while nearby mountains receive much more.
  • Warmest months: July and August are normally warmest.
  • Coolest months: December and January are typically coolest.
  • Wettest season: late spring and early summer often bring the most precipitation, with local mountain variation.
  • Driest season: midsummer is often driest, although thunderstorms remain possible.
  • Best outdoor window: June through September for the broadest access, with shoulder seasons useful at lower elevations.