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As of 18:30 PDT

Weather in Lewiston, ID

92°Current weather

Lewiston, Saturday, 8 August, 18:30

Clear. Feels like 88°. High 94°, low 66°.

Pressure29.85 inHg
Wind13 mph NW
Humidity16%
Visibility6.2 mi
Dew point40°
Sun, 0994° / 65°0Overcast
94 °Overcast

Lewiston, Sunday, 9 August

Overcast. High 94°, low 65°.

Pressure29.88 inHg
Wind3 mph N
Humidity13%
Visibility6.2 mi
Dew point32°
Mon, 1095° / 64°0Clear
95 °Clear

Lewiston, Monday, 10 August

Clear. High 95°, low 64°.

Pressure29.88 inHg
Wind2.4 mph NW
Humidity15%
Visibility6.2 mi
Dew point33°
Tue, 1195° / 65°0Clear
95 °Clear

Lewiston, Tuesday, 11 August

Clear. High 95°, low 65°.

Pressure29.94 inHg
Wind4.2 mph NW
Humidity15%
Visibility6.2 mi
Dew point34°
Wed, 1293° / 68°0Partly cloudy
93 °Partly cloudy

Lewiston, Wednesday, 12 August

Partly cloudy. High 93°, low 68°.

Pressure29.83 inHg
Wind5.9 mph NW
Humidity20%
Visibility6.2 mi
Dew point40°
Thu, 1390° / 66°0Clear
90 °Clear

Lewiston, Thursday, 13 August

Clear. High 90°, low 66°.

Pressure29.85 inHg
Wind13.3 mph NW
Humidity29%
Visibility—
Dew point45°
Fri, 1495° / 65°0Clear
95 °Clear

Lewiston, Friday, 14 August

Clear. High 95°, low 65°.

Pressure29.94 inHg
Wind7.1 mph NW
Humidity21%
Visibility—
Dew point40°
Sat, 1598° / 68°0Overcast
98 °Overcast

Lewiston, Saturday, 15 August

Overcast. High 98°, low 68°.

Pressure29.97 inHg
Wind6.4 mph NW
Humidity18%
Visibility—
Dew point37°
Sun, 16102° / 70°0Partly cloudy
102 °Partly cloudy

Lewiston, Sunday, 16 August

Partly cloudy. High 102°, low 70°.

Pressure29.97 inHg
Wind13.9 mph NW
Humidity14%
Visibility—
Dew point34°
Mon, 17101° / 72°0Overcast
101 °Overcast

Lewiston, Monday, 17 August

Overcast. High 101°, low 72°.

Pressure29.94 inHg
Wind7.9 mph NW
Humidity15%
Visibility—
Dew point36°
Tue, 1898° / 73°0.1Light rain
98 °Light rain

Lewiston, Tuesday, 18 August

Light rain. High 98°, low 73°.

Pressure29.91 inHg
Wind10.6 mph S
Humidity28%
Visibility—
Dew point51°
Wed, 1995° / 67°0Clear
95 °Clear

Lewiston, Wednesday, 19 August

Clear. High 95°, low 67°.

Pressure29.97 inHg
Wind12.7 mph NW
Humidity39%
Visibility—
Dew point55°
Thu, 2091° / 71°0Overcast
91 °Overcast

Lewiston, Thursday, 20 August

Overcast. High 91°, low 71°.

Pressure29.91 inHg
Wind14.3 mph NW
Humidity29%
Visibility—
Dew point47°
Fri, 2191° / 66°0Clear
91 °Clear

Lewiston, Friday, 21 August

Clear. High 91°, low 66°.

Pressure29.94 inHg
Wind8.1 mph NW
Humidity26%
Visibility—
Dew point42°
Sat, 2296° / 65°0Mostly clear
96 °Mostly clear

Lewiston, Saturday, 22 August

Mostly clear. High 96°, low 65°.

Pressure29.88 inHg
Wind5.2 mph NW
Humidity18%
Visibility—
Dew point36°
Sun, 2396° / 68°0Partly cloudy
96 °Partly cloudy

Lewiston, Sunday, 23 August

Partly cloudy. High 96°, low 68°.

Pressure29.85 inHg
Wind19 mph W
Humidity20%
Visibility—
Dew point39°

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 Lewiston, ID 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 Lewiston, ID 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.