Weather Tomorrow

Weather Tomorrow in Spokane Valley, WA

Fire Weather WatchUntil Aug 21, 10:00 AM

Fire Weather Watch issued August 20 at 3:17PM PDT until August 22 at 10:00PM PDT by NWS Spokane WA

A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.

Heat AdvisoryUntil Aug 21, 10:00 AM

Heat Advisory issued August 20 at 10:28AM PDT until August 21 at 10:00PM PDT by NWS Spokane WA

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

Friday, August 21, 2026

98°Low 61°FColdHot
Cloudy

Precip chance

20%

Wind

0-3 mph

Humidity

34%

Feels like

96–63°F

Rain forecast

Low chance of precipitation. Highest risk around 6 AM (20%).

Data source: National Weather Service (NOAA) · Updated just now

Tomorrow by Hour

61°Temperature trend98°
TimeTempConditionRain %Wind
7 AM70°FPartly Cloudy
0%
0 mph
8 AM68°FPartly Cloudy
0%
0 mph
9 AM66°FPartly Cloudy
0%
0 mph
10 AM63°FPartly Cloudy
0%
0 mph
11 AM62°FPartly Cloudy
0%
1 mph E
12 PM62°FPartly Cloudy
0%
1 mph E
1 PM61°FMostly Sunny
0%
1 mph E
2 PM62°FMostly Sunny
0%
1 mph E
3 PM66°FMostly Sunny
0%
1 mph E
4 PM71°FMostly Sunny
0%
2 mph E
5 PM79°FMostly Sunny
0%
2 mph NE
6 PM84°FMostly Sunny
0%
3 mph NE
7 PM89°FMostly Sunny
0%
3 mph NE
8 PM92°FMostly Sunny
0%
3 mph NE
9 PM96°FMostly Sunny
0%
3 mph NE
10 PM96°FMostly Sunny
0%
3 mph NE
11 PM97°FMostly Sunny
0%
3 mph NE
12 AM98°FMostly Cloudy
1%
3 mph NE
1 AM96°FMostly Cloudy
1%
3 mph NE
2 AM95°FMostly Cloudy
1%
3 mph NE
3 AM91°FCloudy
1%
2 mph NE
4 AM83°FCloudy
1%
2 mph NE
5 AM79°FCloudy
1%
2 mph NE
6 AM77°FSlight Chance Rain Showers
20%
2 mph NE

Precipitation Timeline

100%
50%
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<20%20-50%50-70%>70%

What to Wear Tomorrow

Extreme heat — stay cool and protected

Clothing

  • Lightest possible clothing
  • Wide-brim hat
  • UV-protective shirt if outdoors

Footwear

Breathable sandals

Accessories

  • Sunglasses
  • Sunscreen

Conditions

High: 98°F

Low: 61°F

Wind: 0-3 mph

Rain: 20%

Big temperature swing (61°F to 98°F) — dress in removable layers.

Best Time to Be Outside Tomorrow

3 PM – 4 PM98

Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)

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Frequently Asked Questions

What is the weather forecast for tomorrow in Spokane Valley, WA?
Tomorrow in Spokane Valley: High of 98°F, Low of 61°F. Cloudy with 20% chance of precipitation. Wind 0-3 mph.
Will it rain tomorrow in Spokane Valley?
Low chance of precipitation. Highest risk around 6 AM (20%).
What should I wear tomorrow in Spokane Valley?
With a high of 98°F and low of 61°F, check our "What to Wear" section above for specific clothing recommendations based on temperature, wind, and precipitation.
How accurate is this forecast?
Our forecasts come directly from the National Weather Service (NOAA), which provides some of the most accurate weather predictions available. Tomorrow forecasts are generally 80-90% accurate, with accuracy decreasing the further out you look. Data is refreshed every 30 minutes.