Mattawa, WA 99349 Hourly Weather

Grant County5:06 AM PDT46.73°N, 119.78°W

Next 48 hours

5 AM 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM Fri Oct 23 2 AM 5 AM 8 AM 11 AM 2 PM 5 PM 8 PM 11 PM Sat Oct 24 2 AM 40° 45° 50° 55° 60° 65° %
TemperatureFeels likeChance of precipitationNight
Thursday, October 2219 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
5 AM Mostly Clear 44° 42° 1% 0.00 in N 3 76% 37° 21% 0
6 AM Mostly Sunny 43° 41° 1% 0.00 in N 3 78% 37° 36% 0
7 AM Partly Sunny 43° 41° 1% 0.00 in N 3 80% 37° 57% 0
8 AM Partly Sunny 44° 42° 1% 0.00 in N 3 80% 38° 51% 0
9 AM Mostly Sunny 47° 46° 1% 0.00 in N 3 74% 39° 39% 1
10 AM Mostly Sunny 53° 53° 1% 0.00 in N 3 65% 42° 35% 1
11 AM Mostly Sunny 56° 56° 1% 0.00 in N 3 57% 41° 30% 2
12 PM Partly Sunny 58° 58° 1% 0.00 in N 3 53% 41° 55% 2
1 PM Partly Sunny 61° 61° 1% 0.00 in E 3 G8 49% 42° 62% 2
2 PM Partly Sunny 62° 62° 7% 0.00 in SE 5 48% 42° 65% 2
3 PM Mostly Cloudy 62° 62° 7% 0.00 in SE 5 G10 48% 42° 80% 1
4 PM Partly Sunny 63° 63° 7% 0.00 in SE 5 G10 50% 44° 68% 1
5 PM Mostly Cloudy 61° 61° 4% 0.00 in SE 5 53% 44° 82% 0
6 PM Mostly Cloudy 59° 59° 4% 0.00 in SE 3 G8 62% 46° 78% 0
7 PM Mostly Cloudy 55° 55° 4% 0.00 in SW 5 65% 43° 69% 0
8 PM Mostly Cloudy 53° 53° 4% 0.00 in NW 6 65% 42° 56% 0
9 PM Mostly Cloudy 52° 52° 4% 0.00 in NW 8 G14 65% 41° 56% 0
10 PM Partly Cloudy 52° 52° 4% 0.00 in NW 10 G18 65% 41° 48% 0
11 PM Partly Cloudy 52° 52° 2% 0.00 in NW 12 G21 65% 41° 41% 0
Friday, October 2324 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 52° 52° 2% 0.00 in NW 13 G22 61% 39° 44% 0
1 AM Partly Cloudy 51° 51° 2% 0.00 in NW 14 G29 59% 37° 43% 0
2 AM Partly Cloudy 50° 45° 2% 0.00 in NW 15 G32 56% 35° 31% 0
3 AM Partly Cloudy 50° 44° 2% 0.00 in NW 16 G32 55% 34° 41% 0
4 AM Partly Cloudy 48° 42° 2% 0.00 in NW 16 G33 53% 32° 41% 0
5 AM Mostly Clear 46° 40° 0% 0.00 in NW 15 G31 56% 31° 20% 0
6 AM Sunny 46° 40° 0% 0.00 in NW 15 G31 58% 32° 20% 0
7 AM Sunny 45° 38° 0% 0.00 in NW 15 G31 64% 34° 20% 0
8 AM Sunny 45° 39° 0% 0.00 in NW 14 G28 64% 34° 18% 0
9 AM Sunny 49° 44° 0% 0.00 in NW 14 G28 58% 35° 18% 1
10 AM Sunny 54° 54° 0% 0.00 in NW 14 G28 49% 35° 18% 1
11 AM Sunny 57° 57° 0% 0.00 in NW 10 G20 42% 34° 8% 2
12 PM Sunny 61° 61° 0% 0.00 in NW 10 G20 35% 33° 8% 2
1 PM Sunny 63° 63° 0% 0.00 in NW 10 G20 29% 30° 8% 2
2 PM Sunny 64° 64° 0% 0.00 in W 7 G16 24% 26° 2% 2
3 PM Sunny 65° 65° 0% 0.00 in W 7 G16 24% 27° 2% 1
4 PM Sunny 64° 64° 0% 0.00 in W 7 G16 24% 26° 2% 1
5 PM Sunny 64° 64° 0% 0.00 in W 5 G10 26% 28° 12% 0
6 PM Mostly Clear 59° 59° 0% 0.00 in W 5 G10 38% 33° 12% 0
7 PM Mostly Clear 54° 54° 0% 0.00 in W 5 G10 48% 35° 12% 0
8 PM Mostly Clear 49° 47° 0% 0.00 in W 5 56% 34° 7% 0
9 PM Mostly Clear 47° 45° 0% 0.00 in W 5 60% 34° 7% 0
10 PM Mostly Clear 46° 44° 0% 0.00 in W 5 63% 34° 7% 0
11 PM Mostly Clear 45° 43° 0% 0.00 in NW 5 65% 34° 16% 0
Saturday, October 2424 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 44° 41° 0% 0.00 in NW 5 68% 34° 16% 0
1 AM Mostly Clear 42° 39° 0% 0.00 in NW 5 70% 33° 16% 0
2 AM Mostly Clear 41° 41° 0% 0.00 in NW 2 72% 33° 7% 0
3 AM Mostly Clear 40° 40° 0% 0.00 in NW 2 73% 32° 7% 0
4 AM Mostly Clear 38° 38° 0% 0.00 in NW 2 74% 30° 7% 0
5 AM Mostly Clear 38° 38° 0% 0.00 in NW 1 75% 31° 14% 0
6 AM Sunny 36° 36° 0% 0.00 in NW 1 79% 30° 14% 0
7 AM Sunny 36° 36° 0% 0.00 in NW 1 83% 31° 14% 0
8 AM Mostly Sunny 37° 37° 0% 0.00 in N 1 84% 33° 40% 0
9 AM Mostly Sunny 40° 40° 0% 0.00 in N 1 77% 33° 40% 1
10 AM Mostly Sunny 45° 45° 0% 0.00 in N 1 68% 35° 40% 1
11 AM Mostly Sunny 50° 49° 0% 0.00 in NE 3 58% 36° 33% 2
12 PM Mostly Sunny 53° 53° 0% 0.00 in NE 3 52% 36° 33% 2
1 PM Mostly Sunny 55° 55° 0% 0.00 in NE 3 48% 36° 33% 2
2 PM Mostly Sunny 57° 57° 0% 0.00 in E 3 G8 45% 36° 39% 2
3 PM Mostly Sunny 58° 58° 0% 0.00 in E 3 G8 42% 35° 39% 1
4 PM Mostly Sunny 58° 58° 0% 0.00 in E 3 G8 41% 34° 39% 1
5 PM Partly Sunny 56° 56° 1% 0.00 in E 2 42% 33° 63% 0
6 PM Mostly Cloudy 53° 53° 1% 0.00 in E 2 48% 34° 63% –
7 PM Mostly Cloudy 49° 49° 1% 0.00 in E 2 56% 34° 63% –
8 PM Mostly Cloudy 46° 46° 1% 0.00 in NW 2 63% 34° 70% –
9 PM Mostly Cloudy 45° 45° 1% 0.00 in NW 2 66% 34° 70% –
10 PM Mostly Cloudy 44° 44° 1% 0.00 in NW 2 66% 33° 70% –
11 PM Mostly Cloudy 44° 42° 3% 0.00 in NW 3 66% 33° 70% –
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Cloudy 44° 42° 3% 0.00 in NW 3 67% 34° 70% –
1 AM Mostly Cloudy 43° 41° 3% 0.00 in NW 3 67% 33° 70% –
2 AM Mostly Cloudy 43° 41° 3% 0.00 in NW 3 67% 33° 54% –
3 AM Mostly Cloudy 42° 40° 3% 0.00 in NW 3 67% 32° 54% –
4 AM Mostly Cloudy 41° 39° 3% 0.00 in NW 3 66% 31° 54% –
5 AM Partly Cloudy 40° 37° 3% 0.00 in NW 5 67% 30° 47% –
6 AM Mostly Sunny 39° 36° 3% 0.00 in NW 5 71% 30° 47% –
7 AM Mostly Sunny 39° 36° 3% 0.00 in NW 5 74% 31° 47% –
8 AM Partly Sunny 40° 37° 3% 0.00 in NW 5 75% 33° 64% –
9 AM Partly Sunny 44° 41° 3% 0.00 in NW 5 70% 35° 64% –
10 AM Partly Sunny 49° 47° 3% 0.00 in NW 5 62% 37° 64% –
11 AM Mostly Sunny 53° 53° 8% 0.00 in N 6 G12 54% 37° 49% –
12 PM Mostly Sunny 56° 56° 8% 0.00 in N 6 G12 49% 37° 49% –
1 PM Mostly Sunny 58° 58° 8% 0.00 in N 6 G12 46% 37° 49% –
2 PM Mostly Sunny 59° 59° 8% 0.00 in N 6 G12 45% 38° 47% –
3 PM Mostly Sunny 60° 60° 8% 0.00 in N 6 G12 44% 38° 47% –
4 PM Mostly Sunny 60° 60° 8% 0.00 in N 6 G12 44% 38° 47% –
5 PM Slight Chance Rain Showers 58° 58° 15% 0.00 in N 2 47% 38° 60% –
6 PM Slight Chance Rain Showers 54° 54° 15% 0.00 in N 2 54% 38° 60% –
7 PM Slight Chance Rain Showers 51° 51° 15% 0.00 in N 2 60% 38° 60% –
8 PM Slight Chance Rain Showers 48° 47° 15% 0.00 in NW 3 65% 37° 60% –
9 PM Slight Chance Rain Showers 46° 45° 15% 0.00 in NW 3 69% 36° 60% –
10 PM Slight Chance Rain Showers 46° 45° 15% 0.00 in NW 3 70% 37° 60% –
11 PM Mostly Cloudy 45° 43° 9% 0.00 in NW 5 70% 36° 53% –
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Cloudy 44° 41° 9% 0.00 in NW 5 71% 35° 53% –
1 AM Mostly Cloudy 44° 41° 9% 0.00 in NW 5 72% 36° 53% –
2 AM Mostly Cloudy 43° 40° 9% 0.00 in NW 5 73% 35° 53% –
3 AM Mostly Cloudy 42° 39° 9% 0.00 in NW 5 75% 35° 53% –
4 AM Mostly Cloudy 41° 38° 9% 0.00 in NW 5 77% 34° 53% –
5 AM Partly Cloudy 40° 37° 7% 0.00 in NW 5 79% 34° 45% –
6 AM Mostly Sunny 39° 36° 7% 0.00 in NW 5 82% 34° 45% –
7 AM Mostly Sunny 39° 36° 7% 0.00 in NW 5 84% 35° 45% –
8 AM Mostly Sunny 40° 38° 7% 0.00 in N 3 82% 35° 45% –
9 AM Mostly Sunny 44° 42° 7% 0.00 in N 3 73% 36° 45% –
10 AM Mostly Sunny 49° 48° 7% 0.00 in N 3 63% 37° 45% –
11 AM Mostly Sunny 53° 53° 7% 0.00 in N 6 54% 37° 35% –
12 PM Mostly Sunny 56° 56° 7% 0.00 in N 6 49% 37° 35% –
1 PM Mostly Sunny 58° 58° 7% 0.00 in N 6 45% 37° 35% –
2 PM Mostly Sunny 59° 59° 7% 0.00 in N 5 G12 44% 37° 35% –
3 PM Mostly Sunny 60° 60° 7% 0.00 in N 5 G12 43% 37° 35% –
4 PM Mostly Sunny 60° 60° 7% 0.00 in N 5 G12 44% 38° 35% –
5 PM Mostly Sunny 58° 58° 9% 0.00 in NE 2 47% 38° 40% –
6 PM Partly Cloudy 54° 54° 9% 0.00 in NE 2 54% 38° 40% –
7 PM Partly Cloudy 50° 50° 9% 0.00 in NE 2 64% 38° 40% –
8 PM Partly Cloudy 46° 45° 9% 0.00 in NW 3 73% 38° 40% –
9 PM Partly Cloudy 45° 44° 9% 0.00 in NW 3 76% 38° 40% –
10 PM Partly Cloudy 44° 42° 9% 0.00 in NW 3 75% 37° 40% –
11 PM Partly Cloudy 44° 42° 11% 0.00 in NW 3 73% 36° 37% –
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 43° 41° 11% 0.00 in NW 3 75% 36° 37% –
1 AM Partly Cloudy 42° 40° 11% 0.00 in NW 3 77% 35° 37% –
2 AM Partly Cloudy 41° 41° 11% 0.00 in NW 2 79% 35° 37% –
3 AM Partly Cloudy 40° 40° 11% 0.00 in NW 2 80% 34° 37% –
4 AM Partly Cloudy 39° 39° 11% 0.00 in NW 2 81% 34° 37% –
5 AM Partly Cloudy 39° 39° 10% 0.00 in NW 2 82% 34° 40% –
6 AM Mostly Sunny 38° 38° 10% 0.00 in NW 2 86% 34° 40% –
7 AM Mostly Sunny 38° 38° 10% 0.00 in NW 2 90% 35° 40% –
8 AM Mostly Sunny 39° 39° 10% 0.00 in NW 2 89% 36° 40% –
9 AM Mostly Sunny 43° 43° 10% 0.00 in NW 2 79% 37° 40% –
10 AM Mostly Sunny 48° 48° 10% 0.00 in NW 2 68% 38° 40% –
11 AM Sunny 52° 52° 7% 0.00 in N 3 G8 59% 38° 25% –
12 PM Sunny 55° 55° 7% 0.00 in N 3 G8 54% 39° 25% –
1 PM Sunny 56° 56° 7% 0.00 in N 3 G8 52% 39° 25% –
2 PM Sunny 57° 57° 7% 0.00 in NW 3 G9 51% 39° 25% –
3 PM Sunny 58° 58° 7% 0.00 in NW 3 G9 49% 39° 25% –
4 PM Sunny 58° 58° 7% 0.00 in NW 3 G9 49% 39° 25% –
5 PM Mostly Sunny 57° 57° 9% 0.00 in W 2 51% 39° 34% –
6 PM Partly Cloudy 53° 53° 9% 0.00 in W 2 58% 39° 34% –
7 PM Partly Cloudy 49° 49° 9% 0.00 in W 2 69% 39° 34% –
8 PM Partly Cloudy 45° 44° 9% 0.00 in NW 3 79% 39° 34% –
9 PM Partly Cloudy 44° 42° 9% 0.00 in NW 3 82% 39° 34% –
10 PM Partly Cloudy 43° 41° 9% 0.00 in NW 3 81% 38° 34% –
11 PM Partly Cloudy 43° 41° 6% 0.00 in NW 3 79% 37° 35% –
Wednesday, October 2815 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 42° 40° 6% 0.00 in NW 3 80% 36° 35% –
1 AM Partly Cloudy 41° 39° 6% 0.00 in NW 3 81% 36° 35% –
2 AM Partly Cloudy 40° 40° 6% 0.00 in NW 2 82% 35° 35% –
3 AM Partly Cloudy 39° 39° 6% 0.00 in NW 2 83% 34° 35% –
4 AM Partly Cloudy 38° 38° 6% 0.00 in NW 2 84% 34° 35% –
5 AM Mostly Cloudy 38° 38° 4% 0.00 in NW 2 85% 34° 51% –
6 AM Partly Sunny 37° 37° 4% 0.00 in NW 2 90% 34° 51% –
7 AM Partly Sunny 37° 37° 4% 0.00 in NW 2 93% 35° 51% –
8 AM Partly Sunny 38° 36° 4% 0.00 in NW 3 92% 36° 51% –
9 AM Partly Sunny 42° 40° 4% 0.00 in NW 3 82% 37° 51% –
10 AM Partly Sunny 47° 46° 4% 0.00 in NW 3 70% 38° 51% –
11 AM Mostly Sunny 51° 51° 2% 0.00 in N 5 61% 38° 47% –
12 PM Mostly Sunny 54° 54° 2% 0.00 in N 5 56% 39° 47% –
1 PM Mostly Sunny 56° 56° 2% 0.00 in N 5 52% 39° 47% –
2 PM Mostly Sunny 57° 57° 2% 0.00 in N 5 51% 39° 47% –

National Weather Service forecast updated 3 hrs ago. Precipitation amounts are the forecast liquid equivalent for each hour.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.