If you've heard the song, then you know that the chord structure is very unorthodox.

xxxxxxx
x INTRO x
 xxxxxxx

Dm, D, D/F, D7, D7sus4, D7

xxxxxxx
x VERSE x
 xxxxxxx

C#7 (x4342x@1)                    C7 (x32310@1)                          B7One (x21202@1)thousand umbrellas upturned couldn't catch all the rain that drained

A#7 (x13131@1)                      A7 (x02020@1)            E/G# (143121@4)      E7/G#
out of my head when you said we were over and over I cried til I floated

Gdownstream (320003@1)to a town they call

Esus4 (022200@1)D (xx0232@1)   Esus4D Esus4 (022200@1)D (xx0232@1)   Esus4 (022200@1)B7misery (x21202@1)oh oh misery, misery oh oh misery

C#7, C7, B7, A#7, A7, E/G#, E7/G#, G    ...as before

Esus4 (022200@1)D (xx0232@1)   Esus4 (022200@1)E7misery (020130@1)oh oh misery

xxxxxxxx
x CHORUS x
 xxxxxxxx

A (x02220@1)                     A7 (x02020@1)     F#dim (2312xx@1) how can you smile and forecast weather's getting better, and you'll soon

E7 (020130@1)          Aforget (x02220@1)her if you let the sunshine come through

A7 (x02020@1)        A6 (x04xxx@1)      A+  A (x02220@1)  F#dimhow (2312xx@1)can you smile and forecast weather's getting better if you never let

D (xx0232@1)      B (x2444x@1) C#7, G, F#a (244322@1)girl rain all over you

B (x2444x@1)         C#7 (x4342x@1)           G (320003@1)       F# (244322@1)      B (x2444x@1) C#7, G7, F#7And (242352@1)just when I thought that my vista was golden in hue

B (x2444x@1)          C#7 (x4342x@1)     G7 (320001@1)      F#7 (242352@1)     B (x2444x@1)  C# (x43121@1)    D (xx0232@1)C# (x43121@1)Cone (x32010@1)thousand umbrellas opened to spoil the view

Bm (x24432@1)A (x02220@1)G+  F+  G+  F+      B (x2444x@1)Cdim (2312xx@1)xxxxxxx
x VERSE x
 xxxxxxx

C#7, C7, B7, A#7, A7, E/G#, E7/G#, G

Esus4, D, Esus4, B7

C#7, C7, B7, A#7, A7, E/G#, E7/G#, G

Esus4, D, Esus4, B7

Do Intro run...

then the dubious bit again (with different ending):

Bm, A, G+, F+, G+, F+, B  Cdim  Bsus4   G   G#m

Bm (x24432@1)A (x02220@1)G+  F+  G+  F+      B...  Cdim...  Bsus4...  G (320003@1) G#m (133111@4)XXXXXXXXXXXXXXX
X REPEAT CHORUS X
 XXXXXXXXXXXXXXX

B   C#7, G, F#
...all over you

B (x2444x@1)         C#7 (x4342x@1)           G (320003@1)          F# (244322@1)      B (x2444x@1) C#7, G7, F#7and (242352@1)just when I thought that my skies were a June July blue

B (x2444x@1)          C#7 (x4342x@1)     G7 (320001@1)   F#7 (242352@1) B (x2444x@1)          C#7 (x4342x@1)     G7 (320001@1)   F#7one (242352@1)thousand umbrellas opened,      two thousand umbrellas opened

B (x2444x@1)          C#7 (x4342x@1)     G7 (320001@1)      F#7 (242352@1)     B (x2444x@1)   C# (x43121@1)     D (xx0232@1) Dmaj7 (xx0222@1) Cten (x32010@1)thousand umbrellas opened to spoil the view...