Exhibit 31.2
Certification Pursuant to Section 302 of Sarbanes-Oxley Act of 2002

      I, Paul H. Ewig, certify that:

      1.    I have reviewed this quarterly report on Form 10-Q of Mid-Wisconsin
Financial Services, Inc. (the "registrant");

      2.    Based on my knowledge, this 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 report;

      3.    Based on my knowledge, the financial statements, and other
financial information included in this 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 report;

      4.    The registrant's other certifying officer(s) and I are responsible
for establishing and maintaining disclosure controls and procedures (as defined
in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and we have:

            (a) designed such disclosure controls and procedures, or caused
      such disclosure controls and procedures to be designed under our
      supervision, 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 report is being prepared;

            (b) evaluated the effectiveness of the registrant's disclosure
      controls and procedures and presented in this report our conclusions
      about the effectiveness of the disclosure controls and procedures, as of
      the end of the period covered by this report based on such evaluation;
      and

            (c) disclosed in this report any change in the registrant's
      internal control over financial reporting that occurred during the
      registrant's most recent fiscal quarter (the registrant's fourth fiscal
      quarter in the case of an annual report) that has materially affected, or
      is reasonably likely to materially affect, the registrant's internal
      control over financial reporting; and

      5.    The registrant's other certifying officer(s) and I have disclosed,
based on our most recent evaluation of internal control over financial
reporting, 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 and material weaknesses in the
      design or operation of internal control over financial reporting which
      are reasonably likely to adversely affect the registrant's ability to
      record, process, summarize and report financial information; and

            (b) any fraud, whether or not material, that involves management or
      other employees who have a significant role in the registrant's internal
      control over financial reporting.

Date:  November 14, 2006            PAUL H. EWIG
                                    Paul H. Ewig
                                    Chief Financial Officer
                                    (Principal Financial and Accounting Officer)