UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                   FORM 10-Q/A
                                 Amendment No. 1

(Mark One)

[X]  QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934.

For the quarterly period ended             May 31, 2003
                              ------------------------------------------------

                                       OR

[ ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934.

For the transition period from ____________________ to _______________________


Commission file number  1-6403
                      ----------


                           WINNEBAGO INDUSTRIES, INC.
                           --------------------------
             (Exact name of registrant as specified in its charter)


                 IOWA                                          42-0802678
   ---------------------------------                      -------------------
     (State or other jurisdiction                            (IRS Employer
   of incorporation or organization)                      Identification No.)


   P.O. Box 152, Forest City, Iowa                               50436
- ---------------------------------------                        ----------
(Address of principal executive offices)                       (Zip Code)


Registrant's telephone number, including area code:   (641) 585-3535
                                                   -----------------------

Indicate by check mark whether the registrant is an accelerated filer (as
defined in Rule 12b-2 of the Act). YES _X_ NO ____.

Indicate by check mark whether the registration (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days. YES _X_ NO ____.

There were 18,158,208 shares of $.50 par value common stock outstanding on July
11, 2003.


EXPLANATORY NOTE: The sole purpose of this Form 10-Q/A Amendment No. 1 is to include the signatures of the Company's Chief Executive Officer and Chief Financial Officer to the registrant's Quarterly Report on Form 10-Q for the quarter ended May 31, 2003 (including signatures to the certifications contained in the report) and to Exhibit 99 filed with the Form 10-Q. The remainder of the information contained in the Quarterly Report on Form 10-Q for the quarter ended May 31, 2003, originally filed on July 11, 2003, is not amended hereby and shall be as set forth in the original filing. PART II. OTHER INFORMATION ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K (a) Exhibit 99 906 certification.

CERTIFICATION BY CHIEF EXECUTIVE OFFICER PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Bruce D. Hertzke, Chief Executive Officer of Winnebago Industries, Inc., certify that: 1. I have reviewed this Quarterly Report on Form 10-Q of Winnebago Industries, Inc. (the "Registrant"); 2. Based on my knowledge, this Quarterly Report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Quarterly Report; 3. Based on my knowledge, the financial statements, and other financial information included in this Quarterly Report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this Quarterly Report; 4. The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the Registrant and have: a) designed such disclosure controls and procedures to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this Quarterly Report is being prepared; b) evaluated the effectiveness of the Registrant's disclosure controls and procedures as of a date within 90 days prior to the filing date of this Quarterly Report (the "Evaluation Date"); and c) presented in this Quarterly Report our conclusions about the effectiveness of the disclosure controls and procedures based on our evaluation as of the Evaluation Date; 5. The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation, to the Registrant's auditors and the audit committee of Registrant's Board of Directors (or persons performing the equivalent functions): a) all significant deficiencies in the design or operation of internal controls which could adversely affect the Registrant's ability to record, process, summarize and report financial data and have identified for the Registrant's auditors any material weaknesses in internal controls; and b) any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal controls; and 6. The Registrant's other certifying officer and I have indicated in this Quarterly Report whether there were significant changes in internal controls or in other factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. Date: July 11, 2003 --------------------- By: /s/ Bruce D. Hertzke ---------------------------- Bruce D. Hertzke Chief Executive Officer 17

CERTIFICATION BY CHIEF FINANCIAL OFFICER PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Edwin F. Barker, Chief Financial Officer of Winnebago Industries, Inc., certify that: 1. I have reviewed this Quarterly Report on Form 10-Q of Winnebago Industries, Inc. (the "Registrant"); 2. Based on my knowledge, this Quarterly Report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this Quarterly Report; 3. Based on my knowledge, the financial statements, and other financial information included in this Quarterly Report, fairly present in all material respects the financial condition, results of operations and cash flows of the Registrant as of, and for, the periods presented in this Quarterly Report; 4. The Registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-14 and 15d-14) for the Registrant and have: a) designed such disclosure controls and procedures to ensure that material information relating to the Registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this Quarterly Report is being prepared; b) evaluated the effectiveness of the Registrant's disclosure controls and procedures as of a date within 90 days prior to the filing date of this Quarterly Report (the "Evaluation Date"); and c) presented in this Quarterly Report our conclusions about the effectiveness of the disclosure controls and procedures based on our evaluation as of the Evaluation Date; 5. The Registrant's other certifying officer and I have disclosed, based on our most recent evaluation, to the Registrant's auditors and the audit committee of Registrant's Board of Directors (or persons performing the equivalent functions): a) all significant deficiencies in the design or operation of internal controls which could adversely affect the Registrant's ability to record, process, summarize and report financial data and have identified for the Registrant's auditors any material weaknesses in internal controls; and b) any fraud, whether or not material, that involves management or other employees who have a significant role in the Registrant's internal controls; and 6. The Registrant's other certifying officer and I have indicated in this Quarterly Report whether there were significant changes in internal controls or in other factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material weaknesses. Date: July 11, 2003 --------------------- By: /s/ Edwin F. Barker ---------------------------- Edwin F. Barker Chief Financial Officer 18

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized. WINNEBAGO INDUSTRIES, INC. ----------------------------------------------- (Registrant) Date: July 11, 2003 /s/ Bruce D. Hertzke --------------------- ----------------------------------------------- Bruce D. Hertzke Chairman of the Board, Chief Executive Officer, and President (Principal Executive Officer) Date: July 11, 2003 /s/ Edwin F. Barker --------------------- ----------------------------------------------- Edwin F. Barker Senior Vice President - Chief Financial Officer (Principal Financial Officer) 19


                                   EXHIBIT 99


            WRITTEN STATEMENT BY THE CHIEF EXECUTIVE OFFICER AND THE
                             CHIEF FINANCIAL OFFICER

1.   BRUCE D. HERTZKE, CHIEF EXECUTIVE OFFICER AND PRESIDENT AND EDWIN F.
     BARKER, CHIEF FINANCIAL OFFICER, EACH CERTIFY THAT:

     (a)  The Quarterly Report on Form 10-Q ("periodic report") of Winnebago
          Industries, Inc. (the "issuer"), for the quarter ended May 31, 2003,
          as filed with the Securities and Exchange Commission on the date of
          this certificate, which this statement accompanies, fully complies
          with the requirements of Section 13(a) or 15(d) of the Securities
          Exchange Act of 1934, and

     (b)  the information contained in that periodic report fairly represents,
          in all material respects, the financial condition and results of
          operations of the issuer.

2.   This statement is provided pursuant to the requirements of Section 906 of
     the Sarbanes - Oxley Act of 2002, codified as Section 1350 of Chapter 63 of
     Title 18 U.S.C.

Date:     July 11, 2003
      ---------------------


                                                By: /s/ Bruce D. Hertzke
                                                    ----------------------------
                                                    Bruce D. Hertzke
                                                    Chief Executive Officer
                                                      and President

                                                By: /s/ Edwin F. Barker
                                                    ----------------------------
                                                    Edwin F. Barker
                                                    Chief Financial Officer