Weather Forecast for Mt Rainier National Park

Washington, United States of America

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Current Weather - Mt Rainier National Park: 11°C

Washington, United States of America

Clear

Feels like 7°C

Wind

4 km/h SSW

Humidity

44%

Pressure

1022 mb

UV Index

0

Visibility

10 km

Sunny

Sunny

Saturday, June 13, 2026

High

24°C

Low

8°C

Rain Chance

1%

Hourly Forecast

Sunny 22°C
13:00
Sunny 23°C
14:00
Sunny 24°C
15:00
Sunny 24°C
16:00
Sunny 23°C
17:00
Sunny 22°C
18:00
Sunny 18°C
19:00
Sunny 14°C
20:00
Sunny 12°C
21:00
Clear 10°C
22:00
Clear 9°C
23:00
Jun 14

Day Statistics

Maximum Wind

10 km/h

Humidity

42%

Precipitation

0 mm

UV Index

9

Visibility

10 km

Rain Chance

1%

Snow Chance

0%

Sun & Moon

Sunrise

05:11 AM

Sunset

09:01 PM

Moonrise

03:14 AM

Moonset

07:53 PM

Moon Phase

New Moon

Moon Illumination

1%

Air Quality

PM2.5

4.6

μg/m³

PM10

6.3

μg/m³

NO₂

2.3

μg/m³

O₃

79.1

μg/m³

SO₂

0.4

μg/m³

CO

101.5

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Weather Alerts

Heat Advisory issued June 12 at 3:11PM PDT until June 16 at 5:00AM PDT by NWS Seattle WA

Lowlands of Pierce and Southern King Counties Jun 12, 03:11 PM - Jun 12, 11:00 PM
Severity: Moderate Urgency: Expected

* WHAT...Hot conditions with high temperatures up to 90 to 95 degrees and low temperatures down to 60 to 65 degrees expected. This will pose a moderate risk of heat-related illness. * WHERE...Lowlands of Pierce and Southern King Counties. * WHEN...From 11 AM Sunday to 5 AM PDT Tuesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration. * ADDITIONAL DETAILS...The warmest daytime high temperatures are expected Monday afternoon and the warmest overnight lows are expected Monday night into Tuesday morning. Areas away from water may see localized areas of major HeatRisk, particularly through the Kent-Auburn Valley and in the Tacoma area.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. For sheltering information and other human services in your area, dial 2 1 1 during business hours or visit wa211.org anytime.

Event: Heat Advisory Certainty: Likely Category: Met

Heat Advisory issued June 12 at 9:02PM PDT until June 16 at 5:00AM PDT by NWS Seattle WA

Lowlands of Pierce and Southern King Counties Jun 12, 09:02 PM - Jun 13, 05:30 AM
Severity: Moderate Urgency: Expected

* WHAT...Hot conditions with high temperatures up to 90 to 95 degrees and low temperatures down to 60 to 65 degrees expected. This will pose a moderate risk of heat-related illness. * WHERE...Lowlands of Pierce and Southern King Counties. * WHEN...From 11 AM Sunday to 5 AM PDT Tuesday. * IMPACTS...Heat will significantly increase the risk of heat-related illnesses for those who are sensitive to heat, especially those without effective cooling or adequate hydration.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances. Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. For sheltering information and other human services in your area, dial 2 1 1 during business hours or visit wa211.org anytime.

Event: Heat Advisory Certainty: Likely Category: Met