Weather forecast for tomorrowGrandview, WA
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 66°F
- 39°F
Mostly Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 3mphN 4°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:21 am PDT
- Sunset: 6:07 pm PDT
- details ▼
On Sunday, October 18, mainly sunny conditions will dominate the day.
A substantial temperature range, peaking at a comfortable 66.2°F and bottoming out at a cold 39.2°F, is anticipated.
The maximum temperature for tomorrow will be slightly warmer than the regular high of 60.3°F in October.
Sunrise will be at 7:21 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 47min.
A substantial temperature range, peaking at a comfortable 66.2°F and bottoming out at a cold 39.2°F, is anticipated.
The maximum temperature for tomorrow will be slightly warmer than the regular high of 60.3°F in October.
Sunrise will be at 7:21 am and sunset at 6:07 pm; tomorrow's daylight will last for 10h and 47min.
Hourly overview
Hourly temperatures
Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 34°C.
Coldest hour: 6 am 34°C.
Chance of precipitation
Highest chance: 6 am 4%.
Hourly weather forecast
- 12 am
- 45°F
- Feels like:43°F
Clear
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 3mphW 274°
- Humidity: 75%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 41°F
- Feels like:41°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 1mphW 270°
- Humidity: 84%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 37°F
- Feels like:37°F
Clear
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 1mphNNW 328°
- Humidity: 88%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 34°F
- Feels like:34°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 1mphN 349°
- Humidity: 91%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:21 am
- 8 am
- 34°F
- Feels like:34°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 1mphSSE 163°
- Humidity: 97%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 46°F
- Feels like:46°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphWNW 282°
- Humidity: 63%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 12 pm
- 55°F
- Feels like:55°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphW 280°
- Humidity: 43%
- Pressure: 30.12"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 2 pm
- 63°F
- Feels like:63°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 1mphNNE 26°
- Humidity: 33%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 64°F
- Feels like:64°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphNE 45°
- Humidity: 31%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 1
- details ▼
- 6 pm
- 59°F
- Feels like:59°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 3mphNE 43°
- Humidity: 35%
- Pressure: 29.97"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:07 pm
- 8 pm
- 46°F
- Feels like:46°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphNNE 12°
- Humidity: 57%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 43°F
- Feels like:43°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 2mphNNW 335°
- Humidity: 65%
- Pressure: 29.94"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of cloud-filled and sunny weather is expected.
The temperature will be between the lowest temperature of 33.8°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The highest temperature will be moderately higher than October's average maximum of 60.3°F. The lowest temperature is more consistent with November's average minimum of 34.7°F than the usual minimum of 45°F in October.
The temperature will be between the lowest temperature of 33.8°F and the highest temperature of 64.4°F. The warmest part of the day will be at 3 pm and 4 pm.
The highest temperature will be moderately higher than October's average maximum of 60.3°F. The lowest temperature is more consistent with November's average minimum of 34.7°F than the usual minimum of 45°F in October.
Updated: Oct 17, 2026 @ 22:05:01 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, mostly sunny weather is likely, with high visibility.
Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 39.2°F.
Tomorrow, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 45°F.
Tomorrow, the maximum temperature will be slightly warmer than the average highest temperature in October. The lowest temperature will be also a couple of degrees lower than the average low of 45°F.
On Sunday, in Grandview, sunrise will be at 7:21 am and sunset at 6:07 pm (PDT).
In Grandview, the length of the day tomorrow will be 10h and 47min.
