10-day forecast for Lewisville, WA: 49° to 89°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
89°
Best day: Sunday, August 16
82°
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1082° / 52°0
Morning57°feels 56°
Afternoon78°feels 78°
Evening74°feels 74°
Overnight55°feels 55°
82 °
Lewisville, Monday, 10 August
Clear. High 82°, low 52°.
Pressure30.06 inHg
Wind5.3 mph NW
Humidity39%
Visibility6.2 mi
Dew point48°
Tue, 1185° / 49°0
Morning58°feels 57°
Afternoon81°feels 80°
Evening71°feels 71°
Overnight52°feels 51°
85 °
Lewisville, Tuesday, 11 August
Clear. High 85°, low 49°.
Pressure30.09 inHg
Wind4.5 mph NW
Humidity40%
Visibility6.2 mi
Dew point50°
Wed, 1282° / 53°0
Morning58°feels 57°
Afternoon79°feels 79°
Evening68°feels 68°
Overnight54°feels 54°
82 °
Lewisville, Wednesday, 12 August
Mostly clear. High 82°, low 53°.
Pressure30.00 inHg
Wind2.4 mph NW
Humidity48%
Visibility6.2 mi
Dew point52°
Thu, 1389° / 51°0
Morning58°feels 58°
Afternoon85°feels 83°
Evening73°feels 73°
Overnight52°feels 52°
89 °
Lewisville, Thursday, 13 August
Clear. High 89°, low 51°.
Pressure29.80 inHg
Wind8.5 mph NW
Humidity32%
Visibility—
Dew point50°
Fri, 1489° / 54°0
Morning69°feels 68°
Afternoon85°feels 83°
Evening72°feels 71°
Overnight61°feels 61°
89 °
Lewisville, Friday, 14 August
Overcast. High 89°, low 54°.
Pressure29.85 inHg
Wind8.2 mph NW
Humidity31%
Visibility—
Dew point50°
Sat, 1587° / 54°0
Morning68°feels 67°
Afternoon82°feels 81°
Evening71°feels 71°
Overnight62°feels 61°
87 °
Lewisville, Saturday, 15 August
Overcast. High 87°, low 54°.
Pressure29.97 inHg
Wind9.4 mph NW
Humidity35%
Visibility—
Dew point51°
Sun, 1689° / 55°0
Morning70°feels 68°
Afternoon87°feels 83°
Evening70°feels 69°
Overnight60°feels 59°
89 °
Lewisville, Sunday, 16 August
Mostly clear. High 89°, low 55°.
Pressure30.00 inHg
Wind9 mph NW
Humidity21%
Visibility—
Dew point41°
Mon, 1785° / 53°0
Morning67°feels 66°
Afternoon82°feels 80°
Evening69°feels 68°
Overnight59°feels 58°
85 °
Lewisville, Monday, 17 August
Clear. High 85°, low 53°.
Pressure30.12 inHg
Wind10 mph NW
Humidity27%
Visibility—
Dew point44°
Tue, 1888° / 51°0
Morning68°feels 66°
Afternoon86°feels 83°
Evening73°feels 73°
Overnight64°feels 63°
88 °
Lewisville, Tuesday, 18 August
Clear. High 88°, low 51°.
Pressure30.06 inHg
Wind7.9 mph NW
Humidity20%
Visibility—
Dew point39°
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 Lewisville, WA 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.