Washington school sports heat policy

WIAA’s policy has Washington schools check and record the heat index on hot days; it uses no WBGT readings or limits at all. How to read these labels

Association: WIAA (Washington Interscholastic Activities Association)
Document: WIAA Health & Wellness: Heat Index Policy
Label: No statewide WBGT rule
Reading it uses: Heat index
Statewide table: None
Last checked: September 4, 2026

What WIAA’s document says

High-school athletic policy

No statewide WBGT rule · Washington

WIAA (Washington Interscholastic Activities Association)

WIAA runs on heat index, not WBGT: schools “shall monitor the heat index”, readings are recorded and kept for WIAA inspection, and WIAA names its own calculator as the tool. Its 2026-27 handbook contains no WBGT rule at all, so there is no statewide WBGT threshold for us to show you.

We won’t show another state’s WBGT thresholds in its place: regional tables differ by several degrees. Follow the policy your school, district or league has adopted. For general heat guidance at your field, open the map.

WIAA Health & Wellness: Heat Index Policy

This is a plain-language summary to help you plan. It is not legal advice, and it is not the association’s document. Associations revise these policies often. Confirm what currently applies with your school, district or association.

What else to know

WIAA’s policy applies to all WIAA sanctioned sports and activities in all seasons. Indoor activities with air conditioning are not bound by it.
WIAA has each school designate someone to check the heat index within one hour of each team’s practice on days when the forecast heat index is 85°F or higher.
At a heat index of 105°F or higher, WIAA recommends stopping all outside activity, and indoor activity too where there is no air conditioning. From a heat index of 70°F, it recommends having a way to rapidly cool an athlete, such as ice water immersion, at every practice or event.
Washington’s WIAA (wiaa.com) is a different association from Wisconsin’s WIAA (wiaawi.org), and search results sometimes mix up their heat policies.

How to read this

We found no WBGT limits in WIAA’s document. It uses the heat index instead, so there is no WBGT table to show. Your school or district may also have its own heat policy.

Before you rely on this

This page summarizes WIAA’s document. It does not replace it. If they differ, go by the document and by the policy your school or league has adopted.
Confirm what currently applies with your school, district or association. Many schools adopt their own version.
Any WBGT number WetBulbTracker shows is a modeled estimate for planning, not an official reading. Where a policy calls for an on-site reading, that reading governs.
This page does not replace an athletic trainer’s judgment.

Live heat readings in Washington

Open the map at your field

Suggest a correction

Associations update these documents, often before the fall season. If something here is wrong or out of date, send us a link to the current document and we will re-check it.

Suggest a correction

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WA, Washington: No statewide WBGT rule. This page.
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All state heat policies

Washington school sports heat policy

WIAA’s policy has Washington schools check and record the heat index on hot days; it uses no WBGT readings or limits at all. How to read these labels

Association: WIAA (Washington Interscholastic Activities Association)
Document: WIAA Health & Wellness: Heat Index Policy
Label: No statewide WBGT rule
Reading it uses: Heat index
Statewide table: None
Last checked: September 4, 2026

What WIAA’s document says

High-school athletic policy

No statewide WBGT rule · Washington

WIAA (Washington Interscholastic Activities Association)

WIAA Health & Wellness: Heat Index Policy

What else to know

WIAA’s policy applies to all WIAA sanctioned sports and activities in all seasons. Indoor activities with air conditioning are not bound by it.
WIAA has each school designate someone to check the heat index within one hour of each team’s practice on days when the forecast heat index is 85°F or higher.
At a heat index of 105°F or higher, WIAA recommends stopping all outside activity, and indoor activity too where there is no air conditioning. From a heat index of 70°F, it recommends having a way to rapidly cool an athlete, such as ice water immersion, at every practice or event.
Washington’s WIAA (wiaa.com) is a different association from Wisconsin’s WIAA (wiaawi.org), and search results sometimes mix up their heat policies.

How to read this

We found no WBGT limits in WIAA’s document. It uses the heat index instead, so there is no WBGT table to show. Your school or district may also have its own heat policy.

Before you rely on this

This page summarizes WIAA’s document. It does not replace it. If they differ, go by the document and by the policy your school or league has adopted.
Confirm what currently applies with your school, district or association. Many schools adopt their own version.
Any WBGT number WetBulbTracker shows is a modeled estimate for planning, not an official reading. Where a policy calls for an on-site reading, that reading governs.
This page does not replace an athletic trainer’s judgment.

Suggest a correction

Associations update these documents, often before the fall season. If something here is wrong or out of date, send us a link to the current document and we will re-check it.

Suggest a correction