Well, provided your riding is the same as it has been, and the roads are the same, and if nobody has changed your suspension settings, that becomes a difficult problem to analyze over the net. You can still try tweaking your front end damping settings (loosen off compression and rebound a little - I suggest minor adjustments, test, then re-tweak again) and see if it helps...
"Keep yer feet on the pegs and your right hand cranked."
It may sound a little simplistic, but before you reach for the screwdriver to start adjusting the suspension, you could consider checking the tire pressures. With the weather warming up, your pressures are going to be higher than in the winter months as theres more chance of you reaching working temp.
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