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As of 16:17 MDT

Weather in Jefferson Island, MT

87°Current weather

Jefferson Island, Sunday, 9 August, 16:17

Overcast. Feels like 84°. High 87°, low 55°.

Pressure29.74 inHg
Wind8.8 mph NW
Humidity18%
Visibility6.2 mi
Dew point37°

10-day forecast for Jefferson Island, MT: 53° to 95°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.

95°
Best day: Tuesday, August 11
75° · 0.24 in
Worst day: Friday, August 14

Tap any day below to see morning, afternoon, evening and overnight.

Mon, 1091° / 53°0Clear
MorningClear59°feels 56°
AfternoonClear88°feels 84°
EveningClear80°feels 78°
OvernightClear64°feels 61°
91 °Clear

Jefferson Island, Monday, 10 August

Clear. High 91°, low 53°.

Pressure29.80 inHg
Wind2.7 mph NW
Humidity12%
Visibility6.2 mi
Dew point27°
Tue, 1195° / 53°0Clear
MorningClear69°feels 67°
AfternoonClear93°feels 88°
EveningClear85°feels 82°
OvernightClear63°feels 60°
95 °Clear

Jefferson Island, Tuesday, 11 August

Clear. High 95°, low 53°.

Pressure29.88 inHg
Wind1.8 mph NW
Humidity11%
Visibility6.2 mi
Dew point25°
Wed, 1290° / 60°0Clear
MorningOvercast66°feels 64°
AfternoonClear87°feels 83°
EveningOvercast78°feels 77°
OvernightClear66°feels 63°
90 °Clear

Jefferson Island, Wednesday, 12 August

Clear. High 90°, low 60°.

Pressure29.85 inHg
Wind8.8 mph NE
Humidity21%
Visibility6.2 mi
Dew point36°
Thu, 1381° / 55°0.02Light rain
MorningOvercast60°feels 59°
AfternoonOvercast80°feels 80°
EveningLight rain74°feels 74°
OvernightPartly cloudy61°feels 60°
81 °Light rain

Jefferson Island, Thursday, 13 August

Light rain. High 81°, low 55°.

Pressure29.83 inHg
Wind7.7 mph NE
Humidity45%
Visibility6.2 mi
Dew point49°
Fri, 1475° / 58°0.24Rain
MorningRain60°feels 60°
AfternoonRain68°feels 68°
EveningRain73°feels 72°
OvernightRain63°feels 62°
75 °Rain

Jefferson Island, Friday, 14 August

Rain. High 75°, low 58°.

Pressure29.97 inHg
Wind7.8 mph E
Humidity64%
Visibility—
Dew point53°
Sat, 1580° / 55°0.06Light rain
MorningLight rain60°feels 60°
AfternoonLight rain74°feels 73°
EveningLight rain71°feels 70°
OvernightLight rain63°feels 62°
80 °Light rain

Jefferson Island, Saturday, 15 August

Light rain. High 80°, low 55°.

Pressure30.00 inHg
Wind10.4 mph E
Humidity47%
Visibility—
Dew point50°
Sun, 1686° / 57°0.11Light rain
MorningLight rain64°feels 63°
AfternoonLight rain79°feels 77°
EveningLight rain65°feels 64°
OvernightLight rain59°feels 59°
86 °Light rain

Jefferson Island, Sunday, 16 August

Light rain. High 86°, low 57°.

Pressure29.88 inHg
Wind11.2 mph SW
Humidity24%
Visibility—
Dew point38°
Mon, 1784° / 56°0.01Light rain
MorningLight rain62°feels 60°
AfternoonLight rain77°feels 76°
EveningLight rain80°feels 78°
OvernightLight rain66°feels 65°
84 °Light rain

Jefferson Island, Monday, 17 August

Light rain. High 84°, low 56°.

Pressure29.91 inHg
Wind16.6 mph W
Humidity32%
Visibility—
Dew point42°
Tue, 1889° / 60°0Overcast
MorningOvercast66°feels 64°
AfternoonOvercast84°feels 81°
EveningOvercast86°feels 83°
OvernightOvercast71°feels 70°
89 °Overcast

Jefferson Island, Tuesday, 18 August

Overcast. High 89°, low 60°.

Pressure29.91 inHg
Wind11.2 mph W
Humidity18%
Visibility—
Dew point32°

About this forecast

How reliable is a 10-day forecast?

The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.

What does the time-of-day table show?

Temperature in Jefferson Island, MT around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.

How is the best day chosen?

We weigh the daytime high against precipitation: a warm, dry day scores highest.