Weather in Swan Lake, MT
Swan Lake, Sunday, 9 August, 08:24
Clear. Feels like 52°. High 82°, low 52°.
Monthly outlook for Swan Lake, MT: average high 84.9°, average low 56.2°. That is 4° above the climate normal for August. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 24 August (93.8°), the coolest 10 August (48.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 81.8° | 78.6° | +1.8° |
| 19 August – 28 August | 90.1° | 75.9° | +7.9° |
| 29 August – 7 September | at normal | 73.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Woods Bay (13 mi).
0Swan Lake, Monday, 10 August
Clear. High 83°, low 49°.
0Swan Lake, Tuesday, 11 August
Clear. High 84°, low 54°.
0.01
Swan Lake, Wednesday, 12 August
Light rain. High 82°, low 54°.
0.23Swan Lake, Thursday, 13 August
Light rain. High 71°, low 53°.
0Swan Lake, Friday, 14 August
Clear. High 78°, low 49°.
0
Swan Lake, Saturday, 15 August
Partly cloudy. High 84°, low 52°.
0
Swan Lake, Sunday, 16 August
Overcast. High 88°, low 58°.
0Swan Lake, Monday, 17 August
Overcast. High 85°, low 64°.
0
Swan Lake, Tuesday, 18 August
Mostly clear. High 82°, low 57°.
0Swan Lake, Wednesday, 19 August
Clear. High 86°, low 57°.
0Swan Lake, Thursday, 20 August
Clear. High 90°, low 59°.
0Swan Lake, Friday, 21 August
Mostly clear. High 88°, low 60°.
0Swan Lake, Saturday, 22 August
Clear. High 90°, low 57°.
0Swan Lake, Sunday, 23 August
Clear. High 93°, low 61°.
0Swan Lake, Monday, 24 August
Mostly clear. High 94°, low 63°.
0.06Swan Lake, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.03Swan Lake, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.06Swan Lake, Thursday, 27 August
Climate normal for this date — 60-year average.
0.04Swan Lake, Friday, 28 August
Climate normal for this date — 60-year average.
0.04Swan Lake, Saturday, 29 August
Climate normal for this date — 60-year average.
0.08Swan Lake, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09Swan Lake, Monday, 31 August
Climate normal for this date — 60-year average.
0.05Swan Lake, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.07Swan Lake, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.03Swan Lake, Thursday, 3 September
Climate normal for this date — 60-year average.
0.04Swan Lake, Friday, 4 September
Climate normal for this date — 60-year average.
0.07Swan Lake, Saturday, 5 September
Climate normal for this date — 60-year average.
0.07Swan Lake, Sunday, 6 September
Climate normal for this date — 60-year average.
0.06Swan Lake, Monday, 7 September
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Swan Lake, MT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Swan Lake, MT since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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