<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-11-02</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000105418</issuerCik>
        <issuerName>WEIS MARKETS INC</issuerName>
        <issuerTradingSymbol>WMK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000920914</rptOwnerCik>
            <rptOwnerName>WASSERMAN ELLEN W P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 SOUTH SECOND STREET</rptOwnerStreet1>
            <rptOwnerStreet2>P.O. BOX 471</rptOwnerStreet2>
            <rptOwnerCity>SUNBURY</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>17801-0471</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-11-02</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2004-11-02</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1358000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1746424</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On November 2, 2004, Ellen W. P. Wasserman, the undersigned, exchanged 1,358,000 shares of the Common Stock of the Company for a 97% interest in EKTJ Management LLC.  The undersigned has no voting or dispositive power over the shares held by EKTJ Management LLC.  Mrs. Wasserman disclaims beneficial ownership as it relates to the Common Stock held in EKTJ Management LLC.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Ellen W.P.Wasserman</signatureName>
        <signatureDate>2004-11-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
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X0202
4
2004-11-02
0
0000105418
WEIS MARKETS INC
WMK
0000920914
WASSERMAN ELLEN W P
1000 SOUTH SECOND STREET
P.O. BOX 471
SUNBURY
PA
17801-0471
0
0
1
0
Common Stock
2004-11-02
2004-11-02
4
J
0
1358000
0
D
1746424
D
On November 2, 2004, Ellen W. P. Wasserman, the undersigned, exchanged 1,358,000 shares of the Common Stock of the Company for a 97% interest in EKTJ Management LLC.  The undersigned has no voting or dispositive power over the shares held by EKTJ Management LLC.  Mrs. Wasserman disclaims beneficial ownership as it relates to the Common Stock held in EKTJ Management LLC.
/s/ Ellen W.P.Wasserman
2004-11-04