Sumner, WA Weather Forecast | 5 Day
Updated: Sat Sep 5th 2026 4:15 AM PDT
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Scattered Showers
Sat 9-5-26
Scattered Showers with a high of 71°F and a low of 50°F. It will likey rain, having a 79% chance of a downpour with an estimated 1in. Winds will be light at 7mph and gusts of 17.4mph at 2 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 87% at 11 PM and 39% being its lowest at 3 PM. Barometric pressure is its highest of 30.06inHg at 7 AM, a lowest point of 29.97inHg at 3 PM with an avg 30.02inHg.
- HI: 71°F
- LO: 50°F
- Rainfall: 79% | est. 1in
- Snowfall: 0%
- Wind
6.3 mph - Humidity
66% avg. - UV Index
4.4 - Air QualityGood
- Sunrise
06:33 AM - Sunset
07:41 PM - Moonrise
Does not rise today - Moonset
04:27 PM - Moon Phase
Waning Crescent
Sunny
Weather Tomorrow, Sun 9-6-26
Sunny with a high of 74°F and a low of 49°F. There's a very small chance of rainfall, only about 10% with an estimated 0in. Winds will be light at 6mph and gusts of 16.8mph at 5 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 90% at 2 AM and 33% being its lowest at 3 PM. Barometric pressure is its highest of 30.03inHg at 12 AM, a lowest point of 29.91inHg at 4 PM with an avg 29.98inHg.
- HI: 74°F
- LO: 49°F
- Rainfall: 10% | est. 0in
- Snowfall: 0%
- Wind
6 mph - Humidity
64% avg. - UV Index
4.6 - Air QualityGood
- Sunrise
06:34 AM - Sunset
07:39 PM - Moonrise
12:12 AM - Moonset
05:18 PM - Moon Phase
Waning Crescent
Sunny
Mon 9-7-26
Sunny with a high of 73°F and a low of 50°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 9mph and gusts of 15.7mph at 12 AM. The humidity will be on the higher side, averaging about 64%, the maximum being 88% at 11 PM and 38% being its lowest at 5 PM. Barometric pressure is its highest of 30.07inHg at 9 PM, a lowest point of 29.99inHg at 5 PM with an avg 30.03inHg.
- HI: 73°F
- LO: 50°F
- Rainfall: 5%
- Snowfall: 0%
- Wind
8.3 mph - Humidity
64% avg. - UV Index
4.2 - Air QualityGood
- Sunrise
06:35 AM - Sunset
07:37 PM - Moonrise
01:30 AM - Moonset
05:57 PM - Moon Phase
Waning Crescent
Overcast
Tue 9-8-26
Overcast with a high of 73°F and a low of 50°F. There might be light rainfall having a 16% chance. Winds will be light at 6mph and gusts of 16.1mph at 4 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 93% at 6 AM and 39% being its lowest at 5 PM. Barometric pressure is its highest of 30.07inHg at 12 AM, a lowest point of 29.93inHg at 5 PM with an avg 30.02inHg.
- HI: 73°F
- LO: 50°F
- Rainfall: 16%
- Snowfall: 0%
- Wind
5.8 mph - Humidity
69% avg. - UV Index
4.6 - Air QualityGood
- Sunrise
06:37 AM - Sunset
07:35 PM - Moonrise
02:55 AM - Moonset
06:27 PM - Moon Phase
Waning Crescent
Sunny
Wed 9-9-26
Sunny with a high of 78°F and a low of 54°F. Rainfall expected to have a 57% chance with an estimated 0.12in. Winds will be light at 5mph and gusts of 15.4mph at 8 PM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 86% at 8 PM and 37% being its lowest at 10 AM. Barometric pressure is its highest of 30.08inHg at 9 AM, a lowest point of 29.94inHg at 5 PM with an avg 30.01inHg.
- HI: 78°F
- LO: 54°F
- Rainfall: 57% | est. 0.12in
- Snowfall: 0%
- Wind
4.3 mph - Humidity
60% avg. - UV Index
6 - Air QualityModerate
- Sunrise
06:38 AM - Sunset
07:33 PM - Moonrise
04:23 AM - Moonset
06:50 PM - Moon Phase
New Moon
Sunny
Thu 9-10-26
Sunny with a high of 83°F and a low of 56°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 4mph and gusts of 15mph at 2 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 79% at 12 AM and 26% being its lowest at 5 PM. Barometric pressure is its highest of 30.03inHg at 5 AM, a lowest point of 29.83inHg at 5 PM with an avg 29.94inHg.
- HI: 83°F
- LO: 56°F
- Rainfall: 4%
- Snowfall: 0%
- Wind
4 mph - Humidity
54% avg. - UV Index
7 - Air QualityTBA
- Sunrise
06:39 AM - Sunset
07:31 PM - Moonrise
05:49 AM - Moonset
07:10 PM - Moon Phase
New Moon
This 5-Day weather forecast is relevant for ZIP codes 98352 and 98390, accurately covering areas of Sumner, WA.
Currently
 |
52°F |
30.03 inHg.
Barometer 73%
Humidity SE 4.7 mph Wind |
| Moderate Or Heavy Rain Shower | ||
National Outlook
Severe Storms and Heat Wave Across the U.S. - 09-05 to 09-07
Sat Sep 5th 2026, 1:54am PDT
Read
Central Heat Wave Persists Amidst Changing Weather Patterns
Extended Forecast
Sat Sep 5th 2026, 1:55am PDT
Read
Sat Sep 5th 2026, 1:55am PDT
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